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1 Advanced WCM Dr. Hajime Yamashina Professor Emeritus, Kyoto University Member of RSA Member of Royal Swedish Academy of Engineering Sciences Contents : 1. Why WCM ? 2. How WCM has been established -- The seven keywords to understand WCM 3. The foundation to establish competitive manufacturing 4. Sustainment and diffusion of WCM 5. The five viewpoints of WCM 6. The importance of production engineers 7. Ten pillars of WCM and ten management issues 2 1. Why WCM ? 3 A company cannot make business gains solely by using cost-cutting measures because it cannot cut costs enough to become a world-class competitor. Instead, it must invest resources in the right areas to strengthen its competitive edge. When it comes to manufacturing, it must invest resources in productivity improvement. This generally increases factory performance and cuts costs at the same time. 5 • World class companies create the energy of a crisis in the face of success for continuous challenge and engage every member of the companies for continuous improvement. Profitability improvement New technology Product development Equipment development Developing products that lead the market Developing products for a new nitch market Reinforcement of product development capability Improvement of techniques / reinforcement of design capability 1.1 Introduction Strengthening of manufacturing WCM Reduction of variable costs Application of VA to raw materials, cost reduction Reduction of distribution cost Increase of sales Increase sales of new product Increase of sales of current products Strengthening of business Supporting each section Business efficiency and effectiveness 6 7 • In a WCM plant, you can see visually how quality is built-in at each process. • In a WCM plant, there is a system which makes it possible to highlight any abnormality visually in such a way that anybody can recognize it as a problem. • In a WCM plant, we can listen to the voices of customers. To make us more profitable, we need to think from the following seven viewpoints : (1) Strategy Lofty and easily understandable company’s policy and strategy to be implemented from the top to the shop floor people. (2) Capital – profit, investment Severe cost management – extensive use of cost deployment. (3) Products High value added products Needs oriented product development Development of original and creative products 8 (4) People Very active organization R&D : innovation minded Manufacturing : Kaizen minded People development directly linked to their work Utilization of knowledge and wisdoms of exceptional external people (5) Technology Active development of new businesses Capability of new product development Capability of process innovation (6) Extensive utilization of I.T. Real time information from market needs to suppliers (7) Time management Produce value every minute 9 Two Performance Measures 10 Taylor system : maximizes production performance “Profit is a matter of opinion. Cash is a reality.” JIT system : maximizes capital efficiency 11 Traditional management Management WCM way Overall objectives Mental, not concrete Explicitly showing overall targets Deployment Harmonizing deployment with others Deployment based on priority Individual Self-evaluated statement Following priorities set by the top Policy planning Selection within the territory where he (she) is in charge Consistent approach based on the sources of the problem Productivity improvement Small group activity Bottom up approach Top down approach with integrated bottom up approval Overall performance Accumulation of individual performances Assured performance of high level Continuous and continual Required approach 12 (1) Machine breakdowns (2) Setup operation (3) Defectives (4) Minor stoppages (5) Delay of part delivery from suppliers (6) Absence of an operator which will just increase production cost and dissatisfy customers. 1.2 Full of waste and losses in a factory 13 Problems Countermeasure Bad design Maintenance Market change New technology Development of competent production engineers and able operators who can cope with the problems 1.3 Machine : No perfect machines exist 14 Philosophical Differences Failure Driven Process is capable move to the next fire only the starting point Process is capable Prevention Driven 6 months later 12 months later 24 months later “if it ain’t broke, don’t fix it” “KAIZEN” 15 Man Skills Immaturity Education and Training Bad habits due to past experiences Attention Health problems, fatigue, worries Excessive stress Carelessness Absent mindlessness Misunderstanding, misjudgment, misoperation Overconfidence Loose mind Knowledge Lack of knowledge The problems caused by man 1.4 Man : Necessity of better understanding of human nature 16 17 Human nature : the ten elements of causing human errors (1)Selection Man cannot handle many pieces of information at the same time. Normally, one at a time. I am a professional in analysis ! Phase Conscious- ness situation Direction of attention Physiological condition Reliability Zero Unconscious 0 Sleep, cerebral attack 0 I Subnormal Indistinct Carelessness Tiredness, monotonous sleepiness, drunkenness Below 0.9 II Normal, Relaxed Passive Inward Rested, Normal operation 0.99 ~ 0.99999 III Normal Clear Active Positive Positive activity 0.999999 IV Hyper-normal Too much focus on one thing At the time of emotional excitement Panic situation Below 0.9 1. Consciousness depends on the environment. 2. Human errors are liable to lead serious errors when phase level goes down. 3. The situation of phase III last for 2 – 5 minutes. 4. Design for fail safe must be considered even in the case of phase I. 18 (2) Consciousness Human consciousness has its rhythm and varies over time. TIME OF DAY A L E R T N E S S L E V E L WE HAVE NO 3RD SHIFT SOURCE: ROYAL AERONAUTICAL SOCIETY HUMAN FACTORS GROUP LONDON, ENGLAND 13.00-14.00 PEAK ALERTNESS SLIGHTLY IMPAIRED REDUCED ALERTNESS DANGEROUSLY DROWSY Effect of working time 19 (3) Alertness Human alertness varies over time : human beings cannot be attentive all the time. 1 20 / 57 TIME OF DAY A L E R T N E S S L E V E L SOURCE: ROYAL AERONAUTICAL SOCIETY HUMAN FACTORS GROUP LONDON, ENGLAND PEAK ALERTNESS SLIGHTLY IMPAIRED REDUCED ALERTNESS DANGEROUSLY DROWSY 1 ST SHIFT – 8h 800 1000 1200600 1400 20 / 57 3 RD SHIFT – 8h 2 ND SHIFT – 8h Some suggested solution : QUALITY DEFECTS FOCUS ON ACTIVITIES AGAINST LOW CONCENTRATION IN WORK S TA R T F IN IS H 1600 1800 20001400 2200 S TA R T F IN IS H 2400200 400 2200600 S TA R T F IN IS H 30 30 30 30 minminminmin 1h 30 min 15 15 15 15 minminminmin 1h 45 min2h 10 10 10 10 minminminmin 1h 50 min Human errors reasons – Tychy Plant 2010 80% of errors with lack of concentration reason Countermeasures Implementations Less than 2 hours We did 187 MOCK DEFECT 2011 - Assembly Shop MOCK DEFECT ROTATION ON WORK STATIONS 2 3 Are the diameters of the two circles (plant) the same ? Are the two diagonals of the same size? • Human beings are liable not to be able to see things as they are. 21 (4) Illusion Are the four lines below perpendicular (upright) or slanting slightly? Which of the two lines below is longer, AB or CD? 22 Which solid line is straight? 23 Are the two lines above and below the dot in the center of the figure parallel or bulging? 24 The vertical line and the horizontal line look the same in length, but are not. How much vertical line is shorter than the horizontal line? 25 Where is the center of the arrow? 26 If we put the two lines of the same length as shown in 1 into the pattern as shown in2, which line looks longer? 27 What do you see in the sketch, a young woman or an old one? • Human beings are liable to be under various illusions. If you have seen the following sketch, you might have seen a young woman due to forward interruption. If you have seen the following sketch, you might have seen an old woman due to forward interruption. 31 (5) Guess and be prejudiced Human beings tend to guess and/or be prejudiced positively or negatively when they see things. (6) Forgetfulness People easily forget People easily forget when interrupted Three phenomena causing forgetfulness : 1.Reverse interference The phenomenon that information obtained earlier will interfere with the one obtained later and the latter cannot be recalled. 2.Forward interference The phenomenon that information obtained later will interfere with the one obtained earlier and the earlier information cannot be recalled. (cf. Brown and Peterson’s experiment of short term memory) 3.Search failure The phenomenon that information obtained earlier cannot be recalled quickly enough due to time difference. Longest life span of short term memory 15 sec. (by the experiment of Brown & Peterson) Time (sec.) T h e ra te o f re m em b er in g w o rd s Remembering Model Short term memory Long term memory Forgetfulness (1) Forgetfulness (2) Rehearsal Information Forgetfulness (short term) 32 R em em b er in g r at e (% ) Number of days Time Remembering rate Forgetting rate 20min. 58% 42% 1 hour 44% 56% 9 hours 36% 64% 1 day (24 hours) 34% 66% 2 days 28% 72% 6 days 25% 75% 31days 21% 79% Forgetfulness curve by Ebbinghouse 33 Most people will have trouble recalling what they saw and hear more than 15 minutes ago, and they will begin to worry they are forgetting. “In fact, smaller amounts of information (true meaning of a single point lesson) are much easier for people to absorb and are more readily retained.” “Present no more than the person can master.” One common mistake is to try to teach everything that is needed to do the job, in one session. When teaching long or complex jobs, the trainer must first break the job down into manageable pieces and present the pieces gradually over time. 34 Alexander Luria. Neuropsychology . (1902- 1977) FUNDAMENTAL PRINCIPLES OF THE NEUROCONGNITIVE MODEL AUTOMATIC ACTIVITIES When an activity becomes automated, failures begin to occur When an activity becomes automated, failures begin to occur When failures occur, the activity verbal program needs to be recovered. When failures occur, the activity verbal program needs to be recovered. Language organizes behaviorLanguage organizes behavior Each review increases the optimal necessary interval before the next review. Each review increases the optimal necessary interval before the next review. Para una retentiva (casi) perfecta, al principio los repasos se realizan durante varios días, luego con semanas e incluso con años. Para una retentiva (casi) perfecta, al principio los repasos se realizan durante varios días, luego con semanas e incluso con años. Forgetting curve + RevisionInformation is forgotten if there is no revision 2 DAY REVIEW 7DAY REVIEW 14DAY REVIEW Hermann Ebbinghaus German phylosopher. (1850- 1909). Behavioral psychology. Curve of forgetting = Review – MEMORY The effect of repeatability by Alexander Luria 35 36 (7) Taking a short cut/omitting things Human beings are liable to take a short cut and/or omit things. Man makes a reflex movement. (8) Being influenced by physical condition Human beings are liable to be influenced by the physical condition. (9) Being influenced by the state of mind (10) Visual direction It is difficult to perceive things outside area where eyes are directed. 37 The range which is easy to see depends on the natural movement of the eyeballs and head : 1. The eyeball movement is as follows from the horizontal line. • The visual angle is downward 0 – 20 degrees . • It is from the center to right and to left 20 degrees each. 2. The natural movement of the head is : upward : 15 degrees, downward : 50 degrees from the center to right and to left each : 20 degrees 3. The range which is easy to see from the combined movement of the eyeballs and head is : upward : 15 degrees, downward : 70 degrees from the center to right and left each : 30 degrees Fig. Obtaining rate of information by five senses 87 % 7% 3.5% 1.5% 1% Eye Ear Nose Skin Tongue % O b ta in in g r at e 38 39Fig. The range that people can watch closely Visual angle E y es ig h t 40 Eye height The following shows the range of height, which is easy to watch, for the panel (operator height : 165cm, eye height : 150 cm, distance from the panel : 2 m). Panel position A : Utility B : Graphic display C : Indicator D : Adjustment and recorder E : Manipulation Fig. The range of height which can be easily watched A • Human beings are liable not to recognize what they think are not important. • Human beings simplify received information when they are accustomed to it and are liable to omit an important part of it; in other words, not to see the situation correctly. • As a result, they are liable to omit some part of operation, carry out operation insufficiently such as selecting wrong parts, and misunderstanding locations and/or places. • Human beings easily forget what was informed. • Human beings cannot stand excessive tension. • Human beings get nervous when a problem takes place. Short summary of human nature 41 To improve cash flow, production performance is very, very important. But, it varies very much depending on the nation, the company, the corporate culture, the factory and the employees even if they use the same equipment. Unless we in production continuously find our problems by ourselves and set our themes to resolve autonomously, the company will not be able to keep competitiveness in a fierce and highly competitive market. 1.5 The importance of continuous improvement 42 Conventional Improvement Defect Expose of Improvement of Improvement, casual factors → hardware by staff → permanent and deficiencies specialists establishment (limited number of improvement, of items) standardization Because such improvements are single-shot efforts or are done by someone else, workers often maintain → them only halfheartedly. In the worst cases, they are ineffective because they do not address the root causes. Figure The Difference Between Conventional Improvement Promotion and Managerial Improvement Promotion 43 Figure The Difference Between Conventional Improvement Promotion and Managerial Improvement Promotion Defect • Analysis of defect Everybody (phenomenon) → phenomena → searches for analysis of causes maintenance (deficiencies) by comparing the actual and ideal states of the equipment Presentation of Enthusiastic inspection inspection, Lasting → calendars by → improvement → results AM, PM, QM and training identification (autonomous and deployment maintenance) (priority given to managerial improvement Educational and Managerial Improvement 44 The Reality of Innovation without Kaizen Importance of Continuous Improvement Innovation Ideal level 45 Innovation with Kaizen Innovation KAIZENKAIZENKAIZENKAIZEN Maintain Involvement of shop floor people 46 The necessity of continuous improvement (The company should create an atmosphere of continuous improvement as a company culture.) Current level 47 Gap [Without] [With] Generation Generation T h ep er fo rm an ce l ev el T h e p er fo rm an ce l ev el 1st 2nd 3rd 4th 1st 2nd 3rd 4th Two cases without autonomous improvement and with continuous improvement 48 1) Fire fighting approach 2) Continuous improvements with P.D.C.A cycle – Build from fundamentals, lasting progress fire fighting improvement Due to lack of foundation and lack of standardization and maintenance, sustaining the achieved result is difficult and the problem will come back again. Problem identification analysis countermeasures checking the results Implementation OK : standardization Horizontal expansion standardization further detail analysis standardization more sophisticated method 1. true cause identified? 2. right method used and good analysis made? 3. right countermeasure implemented? NO Two different approaches The shop floor people follow the standards to sustain the achieved results. 49 0 0 1 8 Near Misses First Aids LTA – Major accident LTA – Minor accident (D + F) Fatal 84 Unsafe Conditions 1960 0 0 128 29 2007 207 3064 Unsafe Acts1852 2765 0 0 7 40 May ‘08 Apr ‘09 (12 months rolling) 341 3885 5018 2009 0 0 62 16 2008 628 3964 4030 HEINRICH PYRAMID - PLANT Example : Safety issues 50 1st level : To achieve 0 lost time accidents (Look at safety root causes against lost time accidents, medication and fist aids) 2nd level : To further achieve 0 first aids (Look at safety root causes even against near misses, unsafe conditions and unsafe acts and use the TWTTP for unsafe acts) 3rd level : To sustain 0 safety incidents, take countermeasures against identified problems at perception, judgement and action stages Journey of continuous improvements 51 The five levels of active organization : Commitment of the organization Level 1 : People deny that there are problems or don’t want to see them. Level 2 : People admit that there are problems but find excuses for not being able to solve them. 52 Level 3 : People accept the fact that there are problems but unable to solve them because they don’t know how to attack them. Level 4 : People want to see potential problems and for this try to visualize them. They will attack them by learning proper methods. Level 5 : People know their problems, methods to solve them and how to involve all the people to attack them. They are ready to attack any problem and to change their organization if needed after solving the problem. (-Continued) 53 Level 1 A drop of water A collection of drops of water Water Physical characters of water Cloud Completely different behavior from physical characters of water Level 5 54 Plant manager Head of department Head of section Assistant manager Foreman Worker Daily work Improvement duty Daily duty 55 On hierarchic organization, people in the upper rank must have higher percentage of improvement duties. Maintaining the present state is a vice that refuses improvement. Only changes create improvements. 56 “It is not the strongest of the species that survives, not the most intelligent, but the one most responsive to change.” Charles Darwin / The Origin of the Species 1.Needs; 57 Over entire continents and other large areas containing hundreds of competing societies, some societies will be more open to innovation, and some will be more resistant. The ones that do adopt new crops, livestock, or technology, may thereby be enabled to nourish themselves better and to outbreed, displace, conquer or kill off societies resisting innovation. J. Diamond : “Guns, germs, and steel” 58 59 • World class companies create the energy of a crisis in the face of success for continuous challenge and engage every member of the companies for continuous improvement. WCM is to make continuous improvements in a systematic and organized way by involving from the top to the shopfloor people In order to get the maximum benefits with Minimal efforts 60 WCM allows a room for thinking ideas If there is a room for thinking, we can deliver our strategy together 61 2. How WCM has been established -- The seven keywords to understand WCM 62 (1) The importance of having a perspective view from a global view to detail “See the wood for the trees” (forest wood tree branch twig) � Safety matrix Cost deployment QA matrix are the way to have a perspective Breakdown map view of the plant Knowledge and skills matrix Value stream mapping It is very important to have a horizontal view in order not to lose opportunities by missing some issues and to prioritize right issues correctly. 63 Clarification of prioritization Prioritization Horizontal thinking Lateral thinking Issue 64 We attach major losses in each unit 0 500000 1000000 1500000 2000000 2500000 3000000 3500000 N VA A - M at er ia l H an dl ing O rg an iz za zi on e de l P ro ce ss o P ro du tti vo N VA A - P re nd er e / L as ci ar e At tre zz at ur a NV A A - S po st am en ti Tr as po rti G es tio ne M ac ch in e / P re si di Im pi an ti M at er ia li Au si lia ri In sa tu ra zi on e M an ut en zio ne / P ul iz ie T ec ni ch e (D itt e Es te rn e) M al at tia N VA A - C on tro lli R ila vo ra zi on i R is ca lda m en to A m bi en te e A cq ue Tr ai ni ng - Fo rm az io ne NV A - Fo rz a M ot ric e As se nt ei sm o / S cio pe ri R ica m bi d i M an ut en zi on e Sm al tim en to R ifi ut i S pe ci al i N VA - R is ca lda m en to F or ni R al le nt am en ti M an ut en zi on e P re ve nt iv a C ic lic a (T B M ) N VA A - I str uz io ni C on tro lli Pu liz ie N on R ag gi un gi m en to S ta nd ar d Di L av or o G es tio ne M at er ia le NV A A - A ltr o Pi cc ol e Fe rm at e (< 10 m in .) G ua st i ( >1 0 m in .) Al tre P er di te N on A nc or a Id en tif ica te C on Il W C M M an ut en zio ne P re ve nt iva P re di tti va (C BM ) Se tu p N VA - C at af or es i Sc ar ti Se qu en zi am en to Ill um in az io ne Li ne e Fe rm e Pe r P ro bl em i A d Al tre U U .O O . D ife tti (d ov ut i a d er ro re u m an o) Pr od uz io ne In te rn a At tre zz at ur e Ar ia C om pr es sa D ife tti (D ov ut i A lle M ac ch in e) M an ut en zi on e C on tin ge nt e (O pp or tu ni ty M ai nt en an ce ) M an ut en zi on e P ro at tiv a N VA - S al da tu ra R iu ni on i Au to m an ut en zio ne Av vi o Im pi an ti Ac qu a In du st ria le In fo rtu ni No n Co nf or m ità M at er ia P rim a Sm al tim en to R ifi ut i A ss im ila bil i U rb an i Er ra ta G es tio ne L og ist ic a En er gi a St an db y A pp ar ec ch ia tu re e S er vi zi M an ca nz a M at er ia li 0 500000 1000000 1500000 2000000 2500000 3000000 3500000 4000000 NV AA - Ma te ria l H an dli ng Pr od uc tiv e Pr oc es s O rg an iza tio n NV AA - Ta ke / lea vin g to ols NV AA - Mo ve m en ts Tr an sp or ts M ac hin es M an ag em en t/E qu ipm en t C on tro l Au xil iar y M at er ial s In sa tu ra tio n Cl ea nin gs an d M ain te na nc e Ab se nt ism d ue to ill ne ss NV AA - Ch ec ks Re wo rks He at ing s Tr ain ing NV A - D riv ing F or ce Ab se nt ism /S trik e M ain te na nc e Sp ar e Pa rts Sp ec ial W as te Di sp os al NV A - O ve n He at U p M ac hin es S low do wn 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 78% 65 � Do not mix objectives with means 66 � Always measure results against the original objectives and targets 67 Itemization The advantages of itemization are : 1.To classify issues 2.To sum up issues3.To narrow down issues The disadvantages of itemization are difficulty in : 1.Having overview 2.Seeing whether there are any missing issues 3.Identifying overlapping issues 4.Understanding interactive relationships among issues 5.Grasping if there are too many issue Opportunities Overlapping 68 Classification by MECE (Mutually Exclusive Collectively Exhaustive) is very important in order not to create confusion by preventing some issues from overlapping. 69 The logical tree with MECE will compensate for these disadvantages. MECE MECE MECE P ro bl em 70 (2) Visualization Visualization of problems creates action ! Problem Be visualized Perceive Judge Act Tell Persuade Recognize Judge Act Problem By visualization By communication Comparison between visualization and communication 71 Fig. Obtaining rate of information by five senses 87% 7% 3.5% 1.5% 1% Eye Ear Nose Skin Tongue % O b ta in in g r at e 72 1. Visualization of a problem leads to action 2. Visualization requires better understanding of phenomena in detail 3. Visualization creates sharing information with the concerned people 4. By submitting information through drawings it can be presented in a vivid, more understandable way and is easy to remember 5. If the operator doesn’t know the major problems he or she can’t help you. Without visualization, � We need a lot of communication and waste time. � When we need to take action, we cannot see its timing. � The problem cannot be highlighted even when we actually need to take action against it. 1. Management commitment must be visible. 2. Safety requires standards and visibility. 3. Standards must be visible. 4. Performances must be visible ideally real time. 5. Waste and losses must be visible. 6. All the problems (breakdowns, contamination, etc.) must be visual. 7. How quality is built in at the process must be visible. 74 75 Definition of Visual Control Visual control means that the equipment itself informs the operator of its abnormality. Abnormal ! “In a world class plant, there is a system which makes it possible to highlight any abnormality visually in such a way that anybody can recognize it as a problem.” 76 Visual Management MODEL AREA Where are problems ? VISUALIZE THEM ! VISUALIZE THEM ! VISUALIZE THEM ! VISUALIZE THEM ! Eg. 1Eg. 1Eg. 1Eg. 1 Where is inventory? Eg. 2Eg. 2Eg. 2Eg. 2 Where are losses of equipment and labour? Eg. 3Eg. 3Eg. 3Eg. 3 What generates cost? Eg. 4Eg. 4Eg. 4Eg. 4 Where does the wall between organizations exist? Eg. Eg. Eg. Eg. 5 5 5 5 Where are the weak points of production engineering? Places Places Places Places Places Places Places Places Places Places Places Places Places Places Places Places Places Places Places Places Level of Level of Level of Level of inventory inventory inventory inventory Money / Money / Money / Money / Time Time Time Time Money / Money / Money / Money / Time Time Time Time Time / Time / Time / Time / Money Money Money Money Money Money Money Money 77 Creating a Visual Workplace The first step in creating a visual workplace is 5S workplace organization. A visual workplace is capable of providing the following benefits: • There is nothing extra or unneeded. • Storage areas are clearly distinguished. • There is a place for everything and everything is in its place. • The workplace is kept immaculately clean. • Items, information, schedules, and processes are recognizable at a glance. • It is easy to distinguish immediately between what is normal and what is not. • Waste and abnormalities are immediately recognizable to anyone. • The flow of product, deviations from standards, and everything else that exists or occurs in the workplace is readily apparent at a glance. • Standard procedures are easily understood. • Paperwork is simplified and minimized. • Quality is increased. • Productivity is enhanced. Sketches * A well drawn sketch is as good as one thousand words * By showing information by a sketch, it can be expressed vividly, well understood and easily memorized. The amount of information a sketch has is equal to that of 8 minutes’ speech. 80 One point lesson * People do not remember a lesson explained with many words. * People find it easy to remember a lesson shown by sketches with a few words (80% : 20%) * People understand a lesson if it is shown by sketches with a statement explaining why it is logically right. 81 An elephant has a long nose, two big ears and a big body Seeing is believing 1. Visualization requires better understanding of phenomena in detail 2. Visualization creates sharing information with the concerned people 3. Visualization of a problem leads to action 82 Figure The visual workplace Prevent abnormalities Defect abnormalities Warn about abnormalities Build standards into the workplace Share established standards Share information and/or results of control activities (5S): Sort, stabilize, shine, standardize, and sustain workplace organization. Plus (2S): Safety and security Poke-Yoke Visual Control Visual Display 7S’s 83 Workplace organization is developed on a 7S foundation ―5S workplace organization plus safety and security― as follows. 1. Sort. Distinguish between what is needed and not needed. 2. Stabilize. Provide a place for everything and maintain everything in its place. • Determine the best location for all identified needed items • Determine how many of each item will be stored in each given location. • Make it easy for anyone to find, use, and return these items. 3. Shine. • Keep the workplace clean. Eliminate dirt, dust, and other foreign matter. • Adopt cleaning as a form of inspection. This exposes abnormal conditions and corrects prefailure conditions by identifying problems while they are still minor. • Integrate cleaning into everyday maintenance tasks. This adds value to equipment and pride in the work area. 4. Standardize. Maintain and monitor the first 3S’s. • Standardize everything and make standards visible so all abnormalities can be easily and immediately recognized. • Devise methods to maintain adherence to the desired state and prevent deviations from standards to: ― Prevent accumulation of material in unwanted places. ― Ensure everything is returned to its own place ― Maintain cleanliness standards 5. Sustain. Stick to the rules scrupulously. Make sure: • Correct procedures become habit. • All employees have been properly trained. • Employee work habits have changed. • The managers of the organization are deeply committed to implementing and maintaining these first 5S practices. In addition to 5S workplace organization, we can add two more subjects to the foundation of our organized workplace. 6. Safety. Make the work sure every process and activity that is carried out on the factory floor is done safely. • Safety must be a proactive effort. The design of any new activity must be founded upon safe practices • Everyone must adhere to all safety standards at all times. Continual audits should be set in place to assure compliance with all safety rules. 7. Security. Make the work environment secure in several areas: • Provide security for the company’s intellectual property. • Provide security for customers. Put systems in place that assure the reliable delivery of their orders: ― Software and recipe backups ― Factory fire and loss security measures • Provide job security for employees. The company’s success depends on the manufacturing processes always being implemented reliably and precisely: ― Deviations from process standards are not allowed ― Systematic improvements in process standards are encouraged Figure The Visual Management Triangle Seeing as a Group ・Production status ・Inventory levels ・Machine availabilityKnowing as a Group ・Delivery commitments ・Goals and schedules ・Management rules Acting as a Group ・Consensus on rules and objectives ・Involvement in improvement activities 89 We made a grave error when we eliminated visual controls such as wall schedules and replaced them with computers. Wall charts support the visual management triangle. They involve the team and compel action. The computer is invaluable, but not for group communicationーit lacks a public interface. This is the Achilles heel of material requirement planning (MRP) and enterprise requirement planning (ERP) systemsー they are invisible and thus anaesthetize the workforce. When computers offer expanded visibility (e.g., displaying data on well-lit boards, with graphic displays illustrating production flow and inventories) they will play a larger role on the manufacturing floor. 90 “In a world class plant, there is a system which makes it possible to highlight any abnormality visually in such a way that anybody can recognize it as a problem.” 91 Comparison between Visual Indication and Visual Control AirFilter Regulator Lubricator Visual indication AirFilter Regulator Lubricator Rubber ring Visual control 92 OK ! Washing booth Cover Tank of washing liquid [ Before ] [ After ] Water supply display lamp Scale Float • Paint defects due to shortage of washing liquid • Unnatural posture when to inspect liquid level • No scale on tank • Noticeable in case of shortage of washing water • Safe inspection • Early confirmation of replenishment of washing liquid • Automatic signal when washing liquid is full 93 The flower withers when oil has been run out When a right amount of oil is fed, the flower becomes open by the move-ment of the float.By looking at the flower, we can observe anomaly of the oil quantity The buoyancy of the float 94 (3) Right method/tools From reactive, via preventive to proactive improvement approaches No methods are perfect and can solve all the problems. We need to choose the right method/tools for each identified problem. There are different kinds of solutions depending on where we are either at the reactive or preventive or proactive stage. In general, a proactive solution is 100 times better than a reactive one (e.g., especially severe accidents, big breakdowns, market claims, etc.) 95 There are basically three levels of countermeasures : �Reactive After an event has taken place, its counter- measures are taken. �Preventive Learning from the past, countermeasures to avoid a repeat (including similar problems under similar conditions) are taken. �Proactive Based on theoretical risk analysis, proper countermeasures to avoid a serious event to occur are taken 96 Defective (Pathogenic bacteria) Countermeasure 1 (proactive) : Destroy bacteria Countermeasure 3 (poorly preventive) : Do not fall ill even if bacteria invade Countermeasure 4 (reactive) : Isolate patients Countermeasure 2 (preventive) : Preventive medical treatment Fig. : Reactive, preventive and proactive countermeasures against generating defectives (bacteria) 97 (a) An elevated method (proactive) (b) A warning method (from reactive to poorly preventive) (c) A crossing gate method (preventive) Fig. : Reactive, preventive and proactive to prevent crossing accidents 98 Revealing potential defects Visible breakdowns Potential defects Prevention of breakdowns at the similar process through horizontal expansion Number of breakdowns does not decrease Potential defects have been revealed A comparison between reactive and preventive approaches 99 Case – 1 6000 5000 4000 3000 2000 1000 0 ( Incidents / months ) 2nd half 1st year 1st half 3rd year 1st half 2nd year 1st half 2 nd half Natural deterioration of inside Natural deterioration of outside Forced deterioration Number of breakdown Transition of the number of breakdowns at “ D company ” Factory figures: 1. Maximum production capacity: 32,000~35,000 units per month 2. Employees 3,200 people 3. Number of equipment 4,000 units 4. Production processes 1st division: Machining, adjustment, pressing, plating 2nd division: Plating, coating, assembly Case – 2 1200 1000 800 600 400 20 0 0 1 4 6 7 8 9 10 11 122 3 5 1 4 6 7 8 9 10 11 122 3 5 ( No. of breakdowns ) ・ ・ ・ ・ ・ ( month ) Phase 1 Phase 2 Phase 3 Phase 4 The basic rules for reducing breakdowns to zero are countermeasures based on the identification of hidden breakdowns and autonomous maintenance by production department. Tokai Rubber carried out these measures and was able to significantly reduce breakdowns in just over 2 years. In some factories they achieved zero breakdowns. Trends in reduction of equipment breakdown Fig. Meaning of targeting Zero 【current stock level】 【optimum level】 【zero】 Target is close to be attained but never attainable. By aiming at “zero”, the optimum value can be attained “What is the optimum level ?” becomes a big issue. There is no room for discussion. Zero is zero. (4) Zero optimum concept 102 Fig. : Making changes will lead to another local optimal point. To ta l c o st 0 0.01 0.000001AQL Effectiveness Time 55% 85% 180M 9M Quality control Maintenance Change over Optimal level under certain assumptions Making changes will create new problems. Make changes, or you don’t make progress. 103 • Zero accidents • Zero machine breakdowns • Zero defects • Zero customer claims • Zero waste disposal . . . Zero is a beautiful number. With WCM zero becomes a reality. We tend to look for the optimum conditions under certain assumptions, believing that these assumptions cannot be changed. One of the unique features of WCM is zero optimum concept and looks for changes of assumptions to achieve zero optimum such as zero breakdowns. 104 Zero optimum approach Traditional approach Overall result Many problems Countermeasures against symptoms Less problems Some problems disappear for a while and pop up again WCM approach Individual result Countermeasure against each root cause and measurement of its result to create knowhow root cause 105 (5) Countermeasures against root causes, not against symptoms 1. Safety (accidents, medical treatment/first aids) * Lack of knowledge * Behaviour * Management * Lack of attention * Personal conditions * Tools/equipment * Procedures, systems 106 Root causes analysis – Accident/Hazard Fatal accident Plant Manager UNIT Shift Location Severe Accident MTC First aid Surname and Name Analysis completed by whom ? Date 5W+1H (event description) BODY CHARTS SKETCH / PHOTOS FIRST ACTION DESCRIPTION WHAT (nature and e body part) WHEN (when was it done? start of shift, end of shift, meal, etc...) WHERE (Is the job being done? i.e. workplace,machine, etc...) WHO (who is doing the job?) Usual work CAT. POSSIBLE ROOT CAUSES CHECK POSSIBLE ROOT CAUSES OK/NOK WHICH (which kind of operation is on going) HOW (How did injury occur?) SAFETY - ROOT CAUSES ANALYSIS - ACCIDENT/ HAZARD P L A N Medicazi In A B C N Y N UNSAFE CONDITIONUNSAFE ACT Competence Knowledge1 o Inadequate training, o Little or no experiance in specific job, o Other Tools Equipments6 o Tool/equipment insufficient o Lack of maintenance o Weakness design o Unexpected running of equipment / tool o Unschedule cleaning cycles o Climatic condition o Incorrect install./fabrication o Insufficient lighting/ o Excessive noise Procedures Systems7 o Lack of standard procedures o Insufficient procedures o Undefined roles o Unclear procedures o Undefined safety practices and procedures o PPE inadequate o PPE unexpected o Other... Attitude Behavior2 o Negligence, o Incorrect use of PPE, o No regard of safety rules o Work cycles out of sequence o Lack of use of PPE o Dubious event, o Other...Personal conditions 5 o Mental deficency / instability o Physical deficiency/ instability o Impaired state (due to alcohol, drugs, Pr.Med) o Familial problems o Health problems o Unexpected illness o Personal problems o Other... Precautions Attention4 o Lack of attention o Operations not schedulated o Misunderstanding o Not correct use of PPE o Other... o Lack of training o Poor physical attitude known o PPE not available o Inadeguate PPE o Physical attitude o Maintenance not performed o Cleaning cycle not performed o No regard of procedures and regulations o Other... Management3 FI, Kaizen, impro-vement activities, etc. FI, Kaizen, impro- vement activities, etc.. Coach/Return Coach/Return Write Up Training/OPL Write Up FI, Kaizen, improvement activities, etc. FI, Kaizen, impro- vement activities,etc. Professional Services Training/OPL MaintenanceTraining/OPL FI, Kaizen, impro- vement activities, etc. Training/OPL 107 ACTION PLAN RESPONSIBLE FORECAST DATE CLOSED DATE NOTES RESULTS ACHIEVED CHECK PERFORM BY DATE SIGNATURE NOTES In last 3 months, was there an event(s) that YES produced the same root cause? NO ADDITIONAL ACTION PLAN RESPONSIBLE FORECAST DATE CLOSED DATE NOTES RESULTS ACHIEVED CHECK PERFORM BY DATE SIGNATURE NOTE In last 3 months, was there an event(s) that YES produced the same root cause? NO ESTENSION PLAN TO SIMILAR AREA AND SCHEDULING NOTE Estension regards: U.T.E./Department U.O. Area: Foreman signature Manager Production Manager R.S.P.P. signature Line Leader Engineer Area Manager D O A C T C H E C K If answer is YES, please schedule additional action plan Aree di estensione Responsabile Data prevista fine lavori Data fine lavori 108 TURNO MATRICULA OP DURACION NOMBRE FECHA DESCRIPCIÓN DE LA INTERVENCIÓN V / F QUIÉN CUANDO QUIÉN CUANDO TIEMPO DE ESPERA TIEMPO DE REPARACIÓN REVISAR MATRIZ DE COMPETENCIAS / REVISAR CALENDARIO DE MANTENIMIENTO PREVENTIVO T IE M P O V E R IF IC A C IÓ N FECHA DE INICO HORA DE INICIO HORA FINALIZACIÓN FECHA FINALIZACIÓN TIEMPO TOTAL A C C IO N E S R E S U L T A N T E S ACCIONES CONTRA LA CAUSA RAIZ TAREAS PARA EL PERSONAL DE MANTENIMIENTO CONTACTAR CON PROVEDOR, PUESTO / OPERACIÓN ANTERIOR CREAR Y COMUNICAR OPL 2 REVISAR LOS ESTÁNDAR DE AUTOMANTENIMIENTO A C C IO N E S RESULTADO DE LAS ACCIONES ( ESCRIBIR EN LA PARTE DE ATRÁS SI FUESE NECESARIO)1 2 4 3 5 SOLUCION DEFINITIVA O PROVISIONAL 6 REPUESTOS UTILIZADOS 5W + 1H QUÉ (¿Que producto se estaba fabricando?) COMO (¿Cuáles son las consecuencias sobre el funcionamiento óptimo de la máquina?) CUÁL (¿Habido símtomas premonitorios de la averia?, ¿Sucede en un caso particular?) 5 LISTA DE POSIBLES CAUSAS 1 A N Á L IS IS D E L A C A U S A R A IZ 3 4 5 6 VERIFICACION DE LAS POSIBLES CAUSAS 1 2 MANTENIMIENTO PROFESIONAL EMERGENCY WORK ORDER "EWO" 4 3 Nº D E S C R IP C IÓ N D E L P R O B L E M A DESCRIPCIÓN DEL PROBLEMA D E F IN IC IÓ N D E L P R O B L E M A CUANDO (Inicio de turno, durante el turno, fin del truno, cambio de modelo, etc) DONDE (Subgrupo, componente) QUIÉN (Error del operario, Error del operario de Mtto, No depende del factor humano, etc) OPERARIOS LINEA MAQUINA TIPO AVERIA PARCIAL / TOTAL COMENTARIOS VERIFICADO POR FIRMA FECHA DETERIORO DEBILIDAD EN EL DISEÑO INCREMENTO DEL ESTRÉS INFLUENCIAS EXTERNAS Material Defectuoso, Falta de material, etc FALTA DE MANTENIMIENTO DE LAS CONDICIONES BASE OPERACIONES NO EJECUTADAS CORRECTAMENTE MANTENIMIENTO INSUFICIENTE DEBILIDAD EN EL PROYECTO INSUFICIENTES COMPETENCIAS DEL CONDUCTOR U OPERARIO DE MTTO INFORMAR AL DEPARTAMENTO PERTINENTE ESTÁNDAR AM OPL SOBRE LAS CODICIONES OPERATIVAS REVISAR CALENDARIO PM REVISAR ESTÁNDAR DE DISEÑO OPL PARA OPERARIOS REVISAR MATRIZ DE COMPETENCIAS TIPO DE CAUSA RAIZ 1 2 3 4 5 6 INSUFICIENT STRENGTH INCREASED STRESS DETERIORATION - EXTERNAL INFLUENCES INSUFFIC. SKILLS DESIGN WEAKNES FAILURE TO RESTORE EQUIPMENT FAILURE TO MAINTAIN BASIC CONDITIONS FAILURE TO OBSERVE OPERATING CONDITIONS AM STANDARD OPL / SMP OPERATING CONDITIONS PM CALENDAR DESING STANDARD OPERATOR OPL ENGINEER OPL SKILL MATRIX REPORT TO: DEPARTMENT, SUPPLIER, WHAT SHOULD BE DONE AFTER BREAKDOWN TO PREVENT IT HAPPENS AGAIN? Adapt. AM Create & Com. OPL Adapt. PM Feed_ back HOW TO COMPILE AN EWO 2. Breakdowns 109 Visual SOP 4 M analysis MATERIALS QC 7 Step MACHINE METHOD MAN QC 7 Step Problem Incoming material inspection Audit to suppliers’ Process (QM matrix ) 5Q for 0 Defects X Matrix QM Matrix JES Poka Yoke SOP 7 Steps - Quality Maintenance QA Matrix Human Errors Poka Yoke Kaizen SMP HERCA Fig. : Problem solving tool kit Training OPL Visual Aid Visual SOP POKA YOKE Error Proofing Q Gate 3. Poor manufacturing quality 110 4. Cost deployment (identification of losses to be attacked) * Causal losses against resultant losses 5. EEM (long lead time, high cost, poor function, high running cost, poor quality, high number of breakdowns) * Poor design * Unnecessary design changes 6. PD (losses caused by lack of competence) * Lack of knowledge (Reactive, preventive, proactive levels) * Lack of skills (Reactive, preventive, proactive levels) 7. . . . 111 0 500.000 1.000.000 1.500.000 2.000.000 2.500.000 3.000.000 3.500.000 4.000.000 4.500.000 5.000.000 C Z K DC R-Class - losses by activities STEP 7 STEP 6 STEP 5 STEP 4 112 113 Lead time difference with and without EEM Cost difference with and without EEM Detail checking by front loading concept requires longer time at early stages but less time at later stages Time C o st 1 2 3 4 5 6 7 EEM Copex process 114 Outline of equipment specifications Process FMEA 4M analysis QA matrix Process chart Evaluation of equipment specifications 2nd DR (1) (3) (4) (2) Fig. Quality Assurance by Equipment from Early Stages 0 100 200 300 400 500 600 700 800 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 S1 S2 S3 S4 S5 S6 S7 EEM- Roller bench-dynamic test Example : Short Lead Times Without EEM With EEM TIME weeks C O S T K € 0 100 200 300 400 500 600 700 800 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 C O S T K € S1 S2 S3 S4 S5 S 6 S7 S1 S2 S3 S4 S5 S6 S7 Lead time difference with and without EEMCost difference with and without EEM 6 weeks -∆80k€ Longer time at early stages Minimum cost of modification at later stages Longer time at early stag Less time at later stage 115 116 Total cost IC re+ RCre IC re RCre IC pre + RC pre RC pre RC pro IC pre IC pro IC pro + RC pro IC : Initial cost RC : Running cost Fig. :Cost difference with and without EEM Time By easier operation and human error free equipment with reliability and maintainability Possible cost reduction Example : EEM- Roller bench-dynamic test MP (Maintenance Prevention) Functional design M P F U N C T IO N A L D E S IG N Safety design Reliability design Maintainability design Operation design Diagnosis design Autonomous maintainability design Quality design 117 118 Definition of Visual Control Visual control means that the equipment itself informs the operator of its abnormality. Abnormal ! “In a world class plant, there is a system which makes it possible to highlight any abnormality visually in such a way that anybody can recognize it as a problem.” (6) Detail oriented (Lateral thinking) �By going into detail, we can reveal and highlight the real hidden problems behind an issue. �By going into detail, we can systematically crack difficult and complicated problems. � By going into detail, we can clearly state phenomenaand clarify the mechanisms of generating problems. � By analyzing data smart, we can get the maximum benefits with minor efforts since we have only limited resources. � By identifying root causes of a problem and attacking it with a proper method (medicine) rigorously (correctly), we can eliminate the problem so that the problem will not prop up again. 119 Figure The Machine Loss Pyramid Breakdown (function loss) Motor burns out Minor Stoppage Motor overheating (function reduction) Minor Failures Vibration causes (no function bearing reduction) deterioration Hidden Failures Loose nuts and (no function bolts reduction) 1111 10 30 Hundreds Example 120 By not attacking the root cause of equipment failures, reactive organizations are doomed to a cycle of permanent breakdown maintenance. Equipment fails Equipment runs, is troublesome, and produces quality defects •Equipment runs •Quality is OK •Productivity is low •Failures are imminent •Basic conditions are neglected •Deterioration is unchecked •Inherent design weakness exist •Workers have inadequate skills •Operating standards are not followed Most organizations react here and only restore equipment to the point of getting the machine running again. However, permanent improvement is only attained when conditions at the base of the pyramid which cause the failure are improved. Remaining chronic conditions will simply combine in new ways to cause new machine failures. Figure Continually reacting to equipment failures by restoring machine operation does nothing to eliminate the root cause of machine failures Figure Minor machine defects are the true root cause of all machine failures For every machine failure there are many underlying chronic conditions as causes Equipment fails Equipment runs, is troublesome, and produces quality defects • Equipment runs • Quality is OK • Productivity is low • Failures are imminent • Basic conditions are neglected • Deterioration is unchecked • Inherent design weakness exist • Workers have inadequate skills • Operating standards are not followed WCM activities focus on elimination of the root causes of equipment failure. Without this foundation of machine weaknesses, equipment failure will not occur. Equipment fails Equipment runs, is troublesome, and produces quality defects •Equipment runs •Quality is OK •Productivity is low •Failures are imminent •Basic conditions are neglected •Deterioration is unchecked •Inherent design weakness exist •Workers have inadequate skills •Operating standards are not followed Figure Without a foundation of eliminating minor defects, equipment failures occur Market Claim 1 Hidden Claims 100 -- 300 Internal rejects 1,000 Out of specifications 10,000 Lack of quality standards 100,000 Fig. : Quality pyramid 124 Minimal cost (motivation for higher productivity with very low absenteeism rate) 1 Demand fluctuation Zero stock (short lead times with quick setup) JIT 2. Quality problems Zero defects (build in quality at the process) TQC 3. Machine breakdowns Zero breakdowns (high availability) WCM TIE P E TQM There are 4 well known manufacturing improvement activities in Japan. 4. Productivity (7) Cost consciousness 125 One of the major drawbacks of WCM, TQC, JIT, and TIE activities is the lack of direct relationship between an activity and its cost reduction benefit. No system is satisfactory without having the capability of evaluating cost. 126 Project Request from Operational Units / Focus Improvement Team Topic worth of executing (B/C) Topic is postponed no Project execution by project team (PDCA)&Update of Cost / Benefit Drivers Project database (Matrix E) Follow up (if needed, horizontal expansion) Determination of Benefit Drivers & Cost Drivers and Quantification by Focus Improvement Team yes Achieved Results? yesno Improvement Plan 127 3. The foundation to establish competitive manu- facturing 128 3.1 People development The initiative of PD must be taken by the plant manager * The performance of the plant depends on the competence of the plant manager. * It also depends on how the plant manager creates a good team to WCM. * The plant manager must involve all the members of the plant so that everyone creates value. 129 What are the questions we should be asking ourselves as to how to get there? “To manufacture well, we must start to create competent leaders.” 130 Horizontal View See Watch Examine Wide Strategic To prioritize To solve Narrow Deep WCM Principles 1. A perspective view 7. Cost consciousness 2. Visualization 3. Right method and tools 4. Zero optimum 5. Countermeasures against root causes 6. Detail in order to see what cannot be seen visually Fig. Everything starts from where and how we see our problems See things through broadly Perceive the meaning Evaluate the judgement from the observed results Pursue root causes against the identified results La te ra l v ie w 131 THINKING LEADER THINKING Right knowledge through education Right skills through training How to attack the identified PD issues 132 132 PLANT MANAGER PROFESSIONAL EXPERT PROFESSIONAL WHITE COLLARS BLUE COLLARS To know where the problems are Professionally exceptional people to attach problems 133 Operating PrincipleOperating Operating Standards Turn chucked workpiece,applying the cutting tool to its surface.Move cutting tool parallel to the workpiece’s rotational axis to remove material from its surface until specified shape and dimensions are obtained. 1.Turn workpiece at the specified RPM and check for absence of wobble. 2.The cutting tool should always move in a straight line. 3. Make sure workpiece center is aligned with top edge of cutting tool. Lathe Cutting Chuck Workpiece Cutting tool 134 While drill is rotating,press it (feed forward) to enable the drill and chisel edge to remove material from the workpiece and expel the material via the drill grooves.A band around the drill’s perimeter provides a hole guide and helps the drill penetrate in a straight line. 1.Turn the drill at the specified RPM and check for absence of evenness and wobble. 2.Make sure drill’s cutting edges are the same shape and size all around (check drill length and angle) 3.Make sure the spindle moves in a straight line. Drilling Drill Workpiece 135 Using two shoes to support the workpiece,turn it on the drive plate. Turn the grindstone at high speed and repeatedly apply it to the workpiece surface until enough of the surface has been removed to obtain the specified shape and dimensions. 1.Align center of workpiece with center of grindstone. 2.Make sure of the workpiece rotational centers and grindstone are parallel. 3.Make sure the workpiece and grindstone are both turning at the specified RPM and are free of mobble. 4.Run only at the specified cutting speed. Internal Grinding Packing plate Grindstone Shoe Workpiece 136 Create an arc in an inert gas between thebase material and the electrode and use the heat of the arc to melt and fuse (weld) the base material. 1.Do not allow the current to fluctuate during welding. 2.Maintain a constant distance between the electrode and the base material. 3.Hold the electrode at the specified angle when moving it forward to weld along the base material. Arc Welding Electrode Arc Base Material Competent and wise men try to see what cannot be seen visually There is no correlation in a binary graph There is correlation in a ternary graph 137 Loss identification depends on your eyes. 138 People improve their eyes as they learn. 139 WCM 100% : KNOWLEDGE KNOWLEDGE SHARPENS YOUR EYES! 140 141 The plant manager and pillar leaders must be educated and trained to become competent leaders as well as good managers. * The gem stone cannot glitter unless polished. Questions : 1. Who are able to see things broadly and understand what the most important issues to be addressed with priority are ? (In fact, roughly speaking, only one out of 100 people can see the wood and the direction of wind for the trees.) 2. Who are able to see what cannot be seen visually and systematically crack difficult and complicated problems by going into detail? (In fact, only a few people can pursue root causes against the identified problem.) 3. Who are able to calculate benefits correctly after investing some amount of money to solve the identified problem? (In fact, no improvement should be accepted without having the capability of evaluating the benefits and required cost. B/C ratio. Very few people can evaluate the benefits of the carried out improvements.) 142 Hierarchical priorities for E & T * Safety matrix * Cost deployment * QA matrix * Breakdowns * Minor stoppages plant manager Managers Specialists Leaders Operators Deployment Practice 143 Deployment, Implementation and communication of the WCM journey Language of Objects, team leaders and shop floor people Middle Management The Language of KPI’s The language of money - Top Management Let’s make sure communication does not become a barrier At the end it should be a complete interface Our middle managers need to be able to speak the two languages clearly e.g., •top management > money •the shop floor > objects, how many breakdowns . . . 144 MANAGER PROFESSIONAL EXPERT PROFESSIONAL WHITE COLLARS BLUE COLLARS FOCUS ON PLANT MANAGER AND HIS FIRST LEVEL 145 Reactive Preventive Proactive * Safety management * Environment management * Cost deployment (A, B, C, D, E,F matrices) * Understanding customers’ needs and wants * Problem solving approaches (FI, AM, PM, QC, WPO, Logistics) * People development * Alignment of the organization structure to support delivery of its policy and strategy * The basics of QC * The basics of maintenance * The basics of WPO * The basics of logistics * Absence management * Rewarding system * Policy management * Strategic thinking * Logical deployment * Establishment of an action program to the near future * Cost deployment (G matrix) * Recruitment [using competency based job description and organizations required characteristics (current, future)] * Real time performance management The subjects the plant manager must master : 146 LEADER THINKING More thinking More visual, direct (more sketches) Just in education and training PLANT MANAGER PROFESSIONAL EXPERT PROFESSIONAL WHITE COLLARS BLUE COLLARS 147 LEADER THINKING PLANT MANAGER PROFESSIONAL EXPERT PROFESSIONAL WHITE COLLARS BLUE COLLARS Overall view “Examine” problems “Watch” problems “See” problems More knowledge & thinking Training & skills 148 MANAGER PROFESSIONAL EXPERT PROFESSIONAL WHITE COLLARS BLUE COLLARS LEADER THINKING More thinking More visual, direct (more sketches) Just in education and training Right knowledge through education Right skills through training 149 Hierarchical priorities for E & T * Safety matrix * Cost deployment * QA matrix * Breakdowns * Minor stoppages Plant manager Managers Specialists Team leaders Deployment Practice Operators 150 JUST IN EDUCATION AND TRAINING STANDARD EDUCATION AND TRAINING Just in time education and training 151 In WCM, for each identified problem we choose a right method (medicine) with proper tools since there is no universal approach (medicine) to solve problems (to cure all illnesses). 152 Furnace Stratification Cost Deployment Summary Where is the problem occurring? Furnace Outfeed What are the root causes of the problems? And which method/tools do you use? 0 50 100 150 200 Downtime Rejects 0 20 40 60 80 O ut fe ed C as ca de In fe ed Z on e 1 T ip pl e Z on e 2 Z on e 1 0 10 20 30 40 Lack of Basic Conditions Human Error Worn-out Mechanical Example 1 : 153 Countermeasures Countermeasures •Apply AM to step 3 to eliminate losses due to a lack of basic conditions on the dryer outfeed in 3 Months •Apply PM to step 3 to eliminate losses due to worn out mechanical and electrical in 3 Months •Eliminate Human Error losses through the People development pillar Conditions Furnace Outfeed 0 5 10 15 20 25 30 35 40 Lack of Basic Human Error Worn-out Mechanical 154 Problems to be solved by people development because all of the problems we face in the operation is due to lack of competence Furnace Outfeed 0 5 10 15 20 25 30 35 40 Lack of Basic Human Error Worn-out 155 (Reactive) 8. PM Step 2 1. 5G 2. 5W + 1H, 5Why 3. 7WCM tools 4. Maintenance theory 6. Breakdown maps 7. AM step 1 8. AM step 2 9. AM step 3 10. Correct evaluation 5. Machine classification AM PM 1. 5G 2. 5W + 1H, 5Why 3. 7WCM tools 4. Maintenance theory 5. Machine classification 6. Measurement of OEE, OPE 7. PM Step 1 9. PM Step 3 10. SMP (Reactive) To attack the identified losses, what competence do we need from the plant manager : View 1) perspective view (strategy, priority) 2) cost consciousness Ideally, he(she) should know what methods/tools should be utilized and be able to check whether they have been applied correctly and evaluate the achieved results. To what extent the plant manager must master? Plant manager 156 In the same way, what competence (in detail) do we need from the production manager ? 1. 5G 2. 5W + 1H, 5Why 3. 7WCM tools 4. Maintenance theory 6. Breakdown maps 7. AM step 1 8. AM step 2 9. AM step 3 10. Correct evaluation 5. Machine classification AM (Reactive) To what extent the production manager must master in detail ? Production manager 157 In the same way, what competence (in detail) do we need from the maintenance manager ? 1. 5G 2. 5W + 1H, 5Why 3. 7WCM tools 4. Maintenance theory 5. Machine classification 6. Measurement of OEE, OPE 7. PM Step 1 9. PM Step 3 10. SMP (Reactive) PM 8. PM Step 2 To what extent the maintenance manager must master in detail ? Maintenance manager 158 We continue to ask up to the team leader and the team members who must attack the identified losses by themselves. 1. 5G 2. 5W + 1H, 5Why 3. 7WCM tools 4. Maintenance theory 6. Breakdown maps 7. AM step 1 8. AM step 2 9. AM step 3 10. Correct evaluation 5. Machine classification AM (Reactive) To what extent they must be taught and master in much more detail? 1. 5G 2. 5W + 1H, 5Why 3. 7WCM tools 4. Maintenance theory 6. Breakdown maps 7. AM step 1 8. AM step 2 9. AM step 3 10. Correct evaluation 5. Machine classification AM (Reactive) Team leader Team members 159 � Do not mix objectives with meansLOGIC 160 � Always measure results against the original objectives and targets Method & tools 161 RIGOR A method (medicine) can work when it is applied correctly with rigor. PACE The marketcannot wait until we solve all the problems. We need pace by involving all the people and raising their competence quickly enough. 162 RESULTS All the activities carried out must bring out good results. otherwise, we must have either attacked wrong issues or applied wrong method/tools or lack of rigor in application or lack of pace. E.g., Bronze level 10 – 20% cost reduction Silver level 25 – 40% cost reduction Gold level ca. 50% cost reduction 163 3.2 Good maintenance � The major problem is to utilize equipment in an optimal way with well organized maintenance. � Equipment is designed to be reliable, but still liable to breakdown because it consists of many components and only when one of the components (A components) breaks down, it will break down. � To eliminate breakdowns is technically possible, but the problem is how to do it economically. 164 Identify ! � Problems to be addressed is how to detect the component economically. � To establish such a maintenance system as to detect the component, we need to understand maintenance theory. 165 Development of the Japanese Quality Assurance Vision, strategy Satisfactions of stakeholders Management R & D Marketing Product planning Design Production preparation Business Manufacturing techniques Purchasing Manufacturing Quality control Inspection control Inspection QC Process QC Total Quality Control TQM 3.3 Built in quality at the process 166 Major concept about quality assurance (in general) 1 Inspection-oriented quality assurance The first stage of quality assurance, which focuses mainly on inspection of final products, involves only the inspection department and the quality department. Their main functions are to prevent defective products from being released from the company. Limitations (a) Inspectors do not build in quality. They are extra people, which reduces labor productivity. (b) The responsibility of quality assurance does not belong to the inspection division, but to the design and production divisions. 167 (c) It is liable to take too much time to feed back information from the inspection division to the production division. (d) As the production speed is increased, it becomes impossible to make inspection by human being properly. (e) In order to carry out quality control in terms of ppm, the statistical sampling method for AQL does not work. (f) There are a lot of items which cannot be guaranteed by inspection. (g) If defectives are produced one after another at processes, it is no use carrying out strict inspection. 168 2 Process-oriented quality assurance The second stage of quality assurance, which focuses on process control, involves the workshops, subcontractors, the purchasing department, the production engineering department and even the business department. “100% good quality is pursued by investigating process capability carefully and controlling the production process properly.” “Build-in quality at the process.” We(Toyota) are not interested in buying products from the companies which sell good products, but interested in buying products from the companies which have good production processes. 169 The basic principle of quality assurance : Build in quality at the process. The investigation and determination of inspection methods, measuring equipment, or inspection facilities at processes become major issues. 1. From the stage of designing, quality problems must be investigated. 2. Through trials, hidden problems must be discovered. 3. The knowledge about quality and maintenance problems at existing processes must be used when establishing new production lines. 170 4. 100% assurance of the process capability for quality must be made. 5. The method of inspecting the initial product (try-out) and its feedback to improve the processes must be clarified. 6. Development of inspection equipment at the process is vital. 7. Introduction of fool proof devices to prevent human mistakes must be made. Limitation (a) The problems which came from bad development and design cannot be solved by the production and inspection divisions. (b) The mis-selection of material cannot be solved by process control. 171 Process Machine charact- eristics Quality charact- eristics The degree of importance Control method Trend control Condition control The degree of guarantee To assure quality at the process : QA sheet Overall evaluation 172 173 Processing In sp ec ti o n In sp ec ti o n In sp ec ti o n In sp ec ti o n Inspection P ro ce ss in g P ro ce ss in g Only processing Inspection of the operation of the previous process + processing Processing + inspection of the operation of this process Processing of the operation of the previous process + processing + inspection of the operation of this process Inspection only Fig. How to inspect products in a line 3 Quality assurance in new product introduction The third stage of quality assurance, which starts from developing a new product, requires company-wide activities from planning of the new product to releasing the product to customers. Quality guarantee at this stage of developing the new product eventually means that quality control must be done with the participation of all the divisions and all the employees including subcontractors. “Build-in quality at the design and the process.” 174 Reasons (a) If QC is not pursued properly in new product introduction, satisfactory quality guarantee cannot be made. (b) If the company makes a failure in new product introduction, it becomes a matter of survival or death for the company. (c) Quality assurance in new product introduction involves research, planning, designing, trial production, purchasing, production technology, production, inspection, business after service departments. 175 176 Ideal Time for Modifications Ideal time for modifications Worst time for modifications P o ss ib il it y o f q u a li ty a n d p ro d u ct iv it y i m p ro v em en t C o st o f m o d if ic a ti o n s Concept Development Validation Production Fig. 177 Table Quality Assurance System Step Engineering Department Quality Assurance Department Manufacturing Department QC Requirements to Manufacturing Department Drawings Assessment of Engineering Requirements Quality Function Deployment Product Planning Production Design Research of Production Technology Quality Specifications FMEA/FTA Designation of Early-stage Manufacturing Control Quality Audit / Reliability Test Prototype Zero Phase Design Review/ Zero Phase Quality Assurance meeting First Design Review/ First Quality Assurance meeting P r o d u c t p l a n n i n g P r o d u c t D e s i g n / P r o t o t y p e 178 Quality Assurance System (cont’d) Step Engineering Department Quality Assurance Department Manufacturing Department P r o d u c t p r e p a r a t i o n M a s s P r o d u c t i o n Process Planning Planning of Machines and Tools Process FMEA Quality Audit/Reliability Test Mass Production (Early-Stage) Inspection Specifications Quality Audit/ Reliability Test Preparation of machines and Tools Assessment of Quality Process Mass Production (routine) Second Design Review/ Second Quality Assurance meeting Third Design Review/Third Quality Assurance meeting QA. Network Process Control Chart Release from Early-Stage Manufacturing Control Pilot Production Process Capability Study Work Standard Training of workers 179 Necessary Activities for Quality Assurance a) Quality Control of Design * Reliable quality function・・・・・・・・・・・・ Quality function deployment * Reliable product design ・・・・・・・・・・・・ Specifications of parameters, specifications of tolerances * Reliablequality assurance ・・・・・・・・・・・・ Design review, FMEA ,FTA, CCCControl of important points * Reliable quality confirmation ・・・・・・・・・・・・ Reliability testing 180Fig. The Structure of Reliability Testing Development Design Prototypes Process planning Trial mass production Mass production Design change process Reliability testing (Step) Reliability testing of the trial products Reliability testing plan Reliability testing of the products of trial mass production Reliability test of the mass produced products 0th DR, 0th QA meeting Secondary DR, Secondary QA meeting Firstly DR, Firstly QA meeting *1 - Checking the conditions which lead to the failure. Checking the applicability of the product in use environments. *2 - Checking the reliability including the variations cause by manufacturing. *1 *2Reliability testing Reliability testing 181Fig. Concept of Parameter Design (Stability Design) It is useful to make parameter design in order to assure product reliability de m an de d ch ar ac te ris tic s noise between products (Variation of parts and material for making the same products) Variation of items de m an de d ch ar ac te ris tic s external noise (Environmental used conditions such as temperature, humidity, voltage and use condition) Given conditions de m an de d ch ar ac te ris tic s noise due to deterioration (Deterioration and wear due to usage) Specified period A1,B1 and C1, are stable design parameters to meet demanded characteristics. 182 b) Quality Control of Manufacturing * Design of reliable manufacturing processes ・・・・・・・・・・・・ Specification of parameters, specification of tolerances, investigation of process capability * Reliable quality assurance ・・・・・・・・・・・・ Process QFD, process FMEA, quality assurance over the entire process, control of important points, reliability testing during production preparations * 100% inspection at the critical processes ・・・・・・・・・・・・ Automatic testing, fool proof devices, screening system, debugging system * Reliable workforce・・・・・・・・・・・・ QC circles, evaluation of skills 183 QC process chart No Process Name of the process Manufac- turing standards Quality process control standards Countermeasures in the case of abnormalities Remarks M ac h in es j ig s/ t o o ls O p er at io n al co n d it io n s R ec o rd in g P er so n i n c h ar g e P er so n r es p o n si b le O p er at io n al s ta n d ar d s Q u al it y c h ar ac te ri st ic s S ta n d ar d s M ea su re m en t to o ls S am p li n g m et h o d R ec o rd in g P er so n i n c h ar g e P er so n re sp o n si b le P ro ce ss c o n tr o l st an d ar d s In sp ec ti o n s ta n d ar d s Determination of specifications Design Determination of production flow Determination of the conditions of manufacturing process Determination of quality specifications Inspection standards QC process chart Manufacturing process Assembly operational standards Press operational standards Coil operational standards Cutting operational standards Grinding operational standards Fig. From process QFD to QC process chart 184 c) Evaluation of quality control activities * Evaluation of product quality (Evaluation of the result) * Evaluation of the quality assurance organization (Evaluation of the quality assurance process) QA meeting Quality auditing system QC diagnosis 185 Table QA Meetings 1st QA meeting 2nd QA meeting 3rd QA meeting 4th QA meeting 5th QA meeting • Planning the product that will satisfy customers. • Realization of quality targets. • Important quality specifications • Confirmation of design quality • Evaluation of degree to which quality targets have been achieved • Stipulation of quality control criteria • Securing machine and process capacity • Confirmation of inspection processes and methods • Confirmation of manufacturing quality and process capability • Striving for quality in manufacturing • Ensuring the quality of incoming materials and parts • Confirmation of the quality of the new products Product planning Product design Prototype design/ manufacture/ test/ evaluation Production preparing Mass production (early stage) Trial production test/evaluation Mass production 186 Phenomena Specs ProcessCauses Process major effects medium effects minor effects Defect mode (custo- mer) Defective product section Quality characteristics Defective mode P rc o es s se q u en ce P ro ce ss n am e 1 2 3 Process QA matrix Article name Article number Person Head Manager In charge Table QA Matrix 187 Table QA Matrix A: effect big B: effect medium Name of product:ABC Name of process QA matrix (Product development management) Items of product guarantee and the degree of influence (Product development management) Quality guarantee items at each process Guarantee charac- teristics Defect mode Estimated cause The degree of influence The degree of occurrence The degree of detection Chemical charac- teristics Electric charac- teristics Guarantee items Physical charac- teristics Pro- cess No. Spec. value Problems at develop- ment stage 188 *forgotten *overlooked *mistaken *misunderstood *insufficient Man Content *manufacturing *handling *manufacturing standard *lack of accuracy *wear *breakdown * raw material * auxiliary material * environment Pro- cedure MethodMachine MaterialCause Operation Process function Defective mode 1 2 3 4 1 2 3 Table 4M Analysis at each Step of Operation Article name Article number Date Person Head Manager in charge 189 Fig. Quality Control at the Manufacturing Process early stage production type of the distribution systematic change takes place Investigation of process capability • Machine, lot • Material • Time Specific tables for process control statistical Control of process • Control chart • Check sheet • histogram Automatic testing Fool proof devices sporadic Control point Control items trial mass production normal production Q ua lit y C ha ra ct er is tic s Time abnormal 190 Product plan Product design Testing product Trial mass production Early stage production U se o f p ro ce ss c ap ab ili ty in fo rm at io n Q A o f th e eq u ip m en t E q u ip m en t p la n n in g P ro ce ss p la n n in g E q u ip m en t d es ig n M an u fa ct u ri n g ad ju st m en t Tr ia l p ro d u ct io n E ar ly s ta g e p ro d u ct io n QA of the product Use of process capability information Fig. The Structure of Process Capability Checking E st ab lis h m en t o f q u al it y st an d ar d s Checking of process capability ・・・・Analysis of cause and effects ・・・・Improvement of process ・・・・Standardization, evaluation Maintenance and improvement of process capability ・・・・Production engineering div. ・・・・Equipment manufacturing div. ・・・・Quality control div. ・・・・Manufacturing div. Manufacturing div. Normal production 191 Example 192 193 194 100,000 check issues Table The QC Mindset : The QC Viewpoint is vital Category The QC Mindset Meaning T Total (1) Strengthening the company constitution Use QC to create a company constitution capable of achieving lasting prosperity (2) Total participative management Unite employees’ talents companywide and exercise them to the full (3) Education and dissemination Boost human resource development by strengthening education and training (4) QC audits Top management itself must check the state of progress of QC and champion QC activities (5) Respect for humanity Respect people’s dignity and have them do their best S Statistical(6) Use of QC tools It’s no good trying to do things by one’s own devices (7) Dispersion control Pay attention to dispersion and identify its causes 195 Table The QC Mindset (-continued) Category The QC Mindset Meaning Q Quality (8) Quality first Aim to secure profits by giving top priority to quality (9) Customer orientation Make the goods and services that customers really want (10) The next process is your customer Never send defectives or mistakes on to the next process C Control (11) The PDCA Wheel Conscientiously follow the Deming Cycle (12) Management by fact Base decisions and actions on facts (13) Process control Control the process of work rather than its results (14) Standardization Formulate, observe and utilize standards (15) Source control Control systems at their source, not downstream (16) Policy management Use policy management to evolve consistent company activities 196 Table The QC Mindset (-continued) Category The QC Mindset Meaning C Control (17) Cross-functional management Create horizontal links throughout the organization and improve systems for managing quality, cost, delivery, safety and morale I Improvement (18) Priority consciousness Pounce on priority problems and attack them mercilessly (19) The QC 7-Step Formula Effect improvements by faithfully following the QC 7-Step Formula (20) Recurrence prevention, prior prevention Never repeat the same mistake! Do not neglect recurrence prevention and prior prevention of trouble 197 198 Improvement Toolkit The 7 WCM Tools Key: • Included •Basic Toolkit • Be Aware Of 1. Prioritization (Find out important problems) * Losses translated into money based on cost deployment * ABC classification * Pareto diagram * Stratification * QA matrix * Machine breakdown map * Safety matrix * Value stream mapping, etc. 199 The 7 WCM Tools 2. Systematic, logical and detailed deployment of objectives into right means and right solutions, and measurement of the results against the objectives and targets �Do not mix objectives with means 200 The 7 WCM Tools 3. Problem description with sketches (Drawing sketches requires better understanding of the problem in detail.) (Understand the problem. Using isometric diagrams is strongly recommended.) 4. 5W + 1H (2H) with the 5G principles (Grasp the current situations.) * Histogram * Control chart . . . . . 201 Improvement Toolkit The 7 WCM Tools Key: • Included •Basic Toolkit • Be Aware Of 5. Root-cause analysis (To identify true causes.) * Cause and effect diagram with a sketch(es) between a probable cause and the effect * 5 Why analysis * 4M analysis * Systematic diagram 6. Phenomena description with sketches (Drawing sketches requires better understanding of the phenomena in detail.) (Observe carefully what are happening behind the problem.) 7. TWTTP (Find hidden issues behind the problem.) 202 Improvement Toolkit The 7 WCM Tools Key: • Included •Basic Toolkit • Be Aware Of The Way to Teach People (TWTTP) * How do you do this work? * How do you know you are doing this work correctly? * How do you know that the outcome is free of defects? * What do you do if you have a problem? 203 The 7 WCM Tools Prioritisation Systematic deployment of objectives into means & solutions Problem description with sketches 5W+1H with the 5G principles Root cause analysis Phenomena description with sketches TWTTP 204 Training on “The 7 basic WCM tools” • Losses translate into money based on cost deployment • ABC classification / Pareto diagramm/Stratification • QA-matrix / S-matrix Machine breakdown map • Losses translate into money based on cost deployment • ABC classification / Pareto diagramm/Stratification • QA-matrix / S-matrix Machine breakdown map 1 Priorisation 205 • To identify where the problem is • To identify where the problem is 2 Systematic, logical and detailed deployment of objectives Training on “The 7 basic WCM tools” 206 • Understand the problem • Understand the problem 3 Problem descriptio n with sketches 1. Lente malposizionata : l’assemblaggio dei manufatti non si presenta in maniera corretta causando un potenziale errore dimensionale in fase di montaggio in vettura 2. Adesivo incompleto : l’adesivo utilizzato per creare una giunzione ermetica tra elementi corpo e lente non è presente in quantità sufficiente a garantire la tenuta 3. Adesivo debordato : l’adesivo utilizzato per creare una giunzione ermetica tra elementi corpo e lente ed è presente in quantità eccessiva causando difetti estetici Training on “The 7 basic WCM tools” 207 • Understand the current situation • Understand the current situation 4 5W + 1H 5G Training on “The 7 basic WCM tools” 208 • To identify true causes• To identify true causes 5 Root-cause analysis Training on “The 7 basic WCM tools” 209 • Observe carefully what are happening behind the problem • Observe carefully what are happening behind the problem 6 Phenomena description Training on “The 7 basic WCM tools” Phenomena identification with sketches Traditional approach is to take countermeasures against the symptom of a problem. WCM identifies phenomena behind the problem. In WCM to resolve the problem identifying the phenomena with sketch(es) is the key. In many cases, to identify the phenomena is not easy. But to eliminate the problem, a great effort should be paid to identify the phenomena (especially in an X matrix). 210 211 Note : The cause and effect diagram is liable to list possible causes not based on facts and not logically develop- ed, but on opinions and presumptions. Then causes tend to be determined by big voices of some bossy people based on their past experiences or pre- conceptions. It is vital to identify phenomena behind the problem. There are, in fact, two things, science and opinion ; the former begets knowledge, the latter ignorance. How we have applied Quality Maintenance using sketches Ex 1: incorrect assembly of the differential shaft with the planetarium OIL LEAKAGE TEST KO FROM THE DIFFERENTIAL SHAFT 212 ~ 10°°°° 213 0°°°° 214 How we have applied Quality Maintenance using sketches Ex 2: known root cause QUALITY PROBLEM PHENOMENON DESCRIPTION Shiftability ProblemShiftability Problem PHENOMENON DESCRIPTION 215 QUALITY PROBLEMShiftability Problem PHENOMENON DESCRIPTION 216 Quality Maintenance – Q Components Q Component identification: example WERA Machine X Matrix – QM Matrix BEARINGS: pointed out by “X Matrix” Direct impact on PRODUCT QUALITY: Shiftability Top five Machine Components Critical for Product Quality Workhead Spindle Bearing ToolHead Spindle Bearings Pieceholder Elastic Pliers Phaser 217 By adopting Quality Maintenance, we check the parts of the machine which could cause quality defects on our product, in order to periodically verify their efficiency. Ex 2: known root cause Worn ToolHead Spindle Bearings Right Axis of Rotation 218 Ex 2: known root cause 219 Right Axis of Rotation How to inspect stressor variation Q Component bearing – WERA Machine Diagnostic technique How to inspect stressor variation Trend management Vibration control Control of vibration through CBM measurement techniques 220 How to inspect stressor variation Q Component bearing – WERA Machine ANALYSIS OF VIBRATION IN BEARING – ON LINE BREAKTHROUGH BEARING PCDATA COLLECTOR Trend Management 221 Data collection is done during machine operation, simultaneously to production. 5 Questions for zero defects Q Component bearing – WERA Machine 222 223 Ex. 3 : Water leakage localized on cylinderblock – seat cap ∅∅∅∅ 50 mm Marks of contacts with cylinder block Root cause: Deformation of the cap due to improper contacts with the terminal clamps 0 1 2 3 4 5 6 7 8 lug-10 ago-10 set-10ott-10 nov-10 dic-10 gen-11 Mancanza di interferenza tra sede e basamento Man Machine Material Method Il tappo non è stato piantato sino in fondo Il piantaggio del tappo è eseguito spingendo il tappo in modo anomalo Il diametro della sede non conforme Diametro del tappo non conforme Materiale tappo non conforme Testimone del piantaggio sulla superficie del tappo Non rilevate non conformità del materiale Diametro della sede conforme (50,013 vs 50 +/- 0,030) NON MISURABILE DOPO MONTAGGIO Pressione piantaggio Mancanza di interferenza tra sede e basamento Man Machine Material Method Il tappo non è stato piantato sino in fondo Il piantaggio del tappo è eseguito spingendo il tappo in modo anomalo Il diametro della sede non conforme Diametro del tappo non conforme Materiale tappo non conforme Testimone del piantaggio sulla superficie del tappo Non rilevate non conformità del materiale Diametro della sede conforme (50,013 vs 50 +/- 0,030) NON MISURABILE DOPO MONTAGGIO Pressione piantaggio How we have applied quality maintenance using sketches 224 How we have applied Quality Maintenance PLUG PLUG PUNCH E L A S T IC D E F O R M A T IO N O F P L U G B O T T O M RIGHT PLUG WORK INTERFERENCE RIGHT PLUG WORK ANOUMALOUS PLUG WORK PERMANENT DEFORMATION PUNCH CONTACT G A PPLUG SEAT ONCYLINDER BLOCK P LU G D IA M E T E R 225 Contact point Contact point “Work” surface “Work” surface No Contact No Contact New design of terminal clamps X Matrix QM Matrix5Q – 0 DEFECTS0 1 2 3 4 5 6 7 8 lug-10 ago-10 set-10 ott-10 nov-10 dic-10 gen-11 “0 DEFECTS” MACHINE - How we have applied Quality Maintenance - EXAMPLE Introduction QA Matrix: methodologies and activities 4M analysis: -Man -Method -Machine -Material QC of incoming materials Results Ex. 4 : Difficult coupling on test bench Problem description: 62 cases - 100% dimensional errors on cluth housing Error Ø (diameter) holes Error Orthogonality of holes Tipo de anomalia – FTQ Position Error of holes Position Error of holes Difficult coupling on test bench due to position error of the holes 137 and 138. Specified tolerance is 0,050 mm and we found results until 0,172 mm, at OP 30 1GXL in UTE 2914. No concentration on shift or operator,. Concentration on X axis error on machine 031. Revised problem How we have applied quality maintenance using sketches BEFORE PART BLOCKING NOT PROPER Misalignment of the clamp to the basis Deformation of the product 137 138 F F M BASIS QC FI AFTER PART BLOCKING PROPER Perfect alignment of the clamp to the basis PRODUCT SUPPORT 137 138 F F M=0 QC FI 4,5 ZERO DEFECTS QUALITY MAINTENANCE – MODEL PROCESS PMAM AM CALENDERPM CALENDER 230 • Find hidden issues behind the problem • Find hidden issues behind the problem 7 HERCA & TWTTP Training on “The 7 basic WCM tools” 4. Sustainment and diffusion of WCM knowhow What we need are : 1. standardization 2. knowledge management 3. time management to sustain what have been achieved by WCM and to diffuse the WCM knowhow quickly enough 231 4.1 Standardization 1. What is a standard? ・ A standard is a clear image of a desired condition. 2.Why are standards so important in WCM? ・ Standards make abnormalities immediately obvious so that corrective action can232232 be taken. 3.What makes an effective standard? ・ A good standard is simple, clear, and visual. 232 In WCM system, standards are linked to action. A thick volume on a shelf has little meaning. But a clear image posted at the point of use has power. Consider a quality standard for, say, paint finish. Here are three types of standards and their relative power. • Written description in the supervisor’s desk drawerーlow power. • Picture posted in the workplaceーhigher power. • Actual sample of both good and bad conditions posted at the point of useーhighest power. 233 Figure Standards Categorized by Object Object Example of application-based standards 1.Things Quality control standards, inspection standards, standards for responding to customer complaints 2. People and operations Standards describing the sequence of manual operations, work instruction standards, etc. 3. Equipment Equipment maintenance standards 4. Information production orders, follow-up standards, item labeling standards 5. People and safety Safety standards 234 Figure Development of Standards Improvement Activities Standardization on a higher level Direction of improvement ⑥⑥⑥⑥ Improvement of management methods: information Step-by-step progress ⑤⑤⑤⑤ Standardization of objects: materials ④④④④ Building standards into equipment: production equipment, computers, etc. ③③③③ Standards for jigs, tools, and alarm devices: measurement ②②②② Standards manuals to clarify work sequences: methods ①①①① Procedure explained by veteran workers: people 235 Figure Evaluation of Current Standards Level Level Category Lowest 1 2 3 4 5 Highest Item Appropriate Method Methods that Depend on Veteran Workers Operation Methods Improvement, Related Steps Handling Methods Improvement – Jigs, Tools, and Instruments Production Equipment/ Systems Improvement Manufacturing Methods and Materials Improvement Quality Quality control (QC) • Oral announcement of precautions • Thorough training • Provision of standards manuals • Visual management • Poka-yoke devices • Alarm system • Source control • Self-diagnostics using a computer • Changes in materials • Changes in production methods • Changes in design plans Safety Safety awareness training (SAT) • Repeated announcement of safety precautions • Confirmation of indicators • Training • Safety shelving • Safety standards manuals • 5S activities housekeeping • Auto stoppers • Sensors • Cutoff system • Guard devices System changes Equip- ment Preventive/ productive maintenance (PM) • 5S activities (housekeeping) • PM training • PM during routine inspection • MTBF measures • Alarm system • Diagnostic system • Improvement of functions in parts • Changes in operation methods • Improvements in reliability System changes Operation methods Industrial engineering (IE) • Training and practice drills • Operations by veteran workers • Control of operation manual writing process • Development of operator-machine systems • Low-cost automation • Computer-based automation and control Development of FMS, FA, and CIM Lead Time Process time (PT) • Oral communication system • Management without standard times • Standard-time- based management • Development of Plan-Do-Check system • Visual management of abnormalities • Auto conveyance at production processes • Computer control of all processes Development of FMS, FA, and CIM 237 Figure Progression of improvements Toward an Ideal Operation Time Note: Circled numbers refer to the levels shown inininin thethethethe aboveaboveaboveabove slideslideslideslide Time 1. Elimination of irrationality, inconsistency, and waste in current operations 2. Standardization of the 5Ms (men/women, machines, materials, methods, and money) 3. Reduction of defects 1. Countermeasure for underutilized equipment 2. Equipment layout improvement 3. Elimination of waste through better management 1. Hardware oriented improvements (equipment automation, process-linking improvements) 2. Other improvements (improvements in standard operation time management and process management) 1. Ideal layout improvement 2. Practical use of innovative technologies 3. Innovations in design and policies Current operation time Ideal (target) operation time ①①①① ②②②② ③③③③ ④④④④ ④④④④ ⑤⑤⑤⑤ &higher Step 1 Step 2 Step 3 Step 4 Step 5 Step 6Step 7 7 steps standardization to establish a good manufacturing basis Documentation One page report Order 5T, safety standards Work SOP Foundation 5S Measurement Maintenance AM, PM, 2G (operating principles, operating standards) jigs, tools Quality 4M standards, 2G 238 1. Seiri (Abandon the unnecessary) 2. Seiton (Putting things in order) 3. Seiso (Keep tidy and clean) 1. Tei-ji 2. Tei-ichi 3. Tei-hyouji 4. Tei-ryou 5. Tei-shoku 3S 5T 239 A place for everything and everything in its place The 5S system is designed to create a visual workplace - that is, a work environment that is self-ordering, and self-improving. In a visual workplace, the out-of- standard situation is immediately obvious and employees can easily correct it. Managing thus, on the basis of exceptions, makes excellence possible. 240 Reduce clutter, reduce ills Nightingale set about transforming the hospital by providing decent food, clean linen, clearing out the drains and opening the windows to let in fresh air. In just one week she removed 215 handcarts of filth, flushed the sewers nineteen times and buried the carcasses of two horses, a cow and four doges which had been found in the hospital grounds, The officers and doctors who had previously run the institution felt that these changes were an insult to their professionalism and fought her every step of the way, but she pushed ahead regardless. The results seemed to vindicate her methods : In February 1855 the death rate for all admitted soldiers was 43% but after her reforms it fell dramatically to just 2% in June 1855. 241 Table Ten Principles for Implementing 5S 1. Keep in mind that your true goal is a well-ordered, smoothly flowing production line. Never let the 5S process itself become the goal, or you’ll end up with the Jive Ss. 2. Distinguish necessary items from unnecessary items and get rid of the unnecessary ones immediately. Excess inventory is a major unneeded item to target. 3. To keep your processes from getting bogged down, first get rid of all excess work-in-process. If you set up and maintain U-shaped production lines, organization and orderliness will follow naturally. 242 5. If management sets the example with the first four Ss, the fifth S, discipline, will follow naturally. 6. Toilet facilities should be better than the ones in the employees’ homes. This creates a clean and hygienic atmosphere throughout the plant. 7. Everyone needs to be responsible for picking up debris, including top management. This will keep the plant neat and clean. 4. Eliminate the waste that arises from looking for things. The secret of the orderliness is to position items according to their frequency of use and to make sure they can be returned easily to their proper places. 243 8. Cleaning is an occasion for spot checks. Pieces of equipment should be labeled in the order of their tendency to break down, and they should be cleaned and inspected every day. 9. No electrical wires should dangle from the ceiling. You’ll have a more streamlined production line if they enter or exit the machines from the side. 10. Clerical and administrative departments should also be set up in streamlined lines to provide a readily observable 5S examples. 244 Figure 5S Implementation Overall goal: well-organized, smoothly flowing production lines 5S Goal Steps for achieving the goal Stage 1 Stage 2 Stage 3 Organization Creating well- organized, smoothly flowing production lines Most of the unneeded items are excess inventory and unfinished goods Creation of compact streamlined lines Streamlined 2S lines that are simplified and automated Orderliness Everything in its place Creating storage bins for parts Improvement of the pre-setup process (reorder charts) Just-in-time supply production with kits Cleanliness Creating a clean, pleasant workplace Improving the floor surface The managers are responsible for picking up scraps Improving the ceiling; a debris-free workplace Standardized Cleanup Maintaining a clean manufacturing process Improving the cafeteria and areas Remodeling the toilet facilities Improving the lightening (2000 lux) Discipline A well-mannered workplace Courtesy campaign Everything done with spit and polish Campaign to instill a sense of style 245 Table 3-3. 5S Evaluation Checklist Worksite Section Line Date Members Check- points Evaluation Level 1 2 3 4 5 Organi- zation Orderli- ness Cleanli- ness Standard- ized Cleanup Discipline Subtotals points points points points points Total Goal: Try to raise the total by 20 points within the next evaluation period. Comments Organization Warehouse (inventory manage- ment ) The storage area is too cluttered to walk around freely. Items are placed irrationally. Items have designated storage places, but they’re often ignored. Items are stored in proper locations, but no standard criteria indicate when to reorder. Items are managed for a just-in- time supply and tracked on inventory boards. Check- points Evaluation Level 1 2 3 4 5 Work areas Items lie scattered around for months, in no particular order. Items lie around for months, but they don’t get in the way. Unneeded items have been red- tagged and a disposal date has been set. Only items to be used within the week are kept around. Only items needed the same day are kept around. Aisles Work-in- process and other items stand in a roped- off area in the aisles. Items are set on the sides of the aisles so employees can pass, but carts and dollies cannot pass. Items protrude into the aisles. Items protrude into the aisles but have warning labels. There is no work-in- progress, so the aisles are completely clear. Check- points Evaluation Level 1 2 3 4 5 Work- benches and tables Tables are covered with unneeded materials. Tables hold materials that are only used once every two weeks. Tables hold extra pencils and other unneeded stationary items. Items remain on the tables for as long as a week. Only the minimum items needed are kept on the tables. Machine parts storage Parts are jumbled together with paper craps and rags. Broken and unusable parts are being stored. Frequently used parts are stored separately from those that will not be used soon. All parts are stored in standard places with standard labels according to an easily understood system. Nothing is found out of place. Check- points Evaluation Level 1 2 3 4 5 Line organiza- tion The line is in disarray, and planned downtime occurs more than 40 percent of the time. Planned downtime is as high as 40 percent, and the flow of the line is unclear. Planned downtime is around 30 percent, and there is waste involved in transport- ing material. Planned downtime is around 20 percent, and unfinished goods are kept on the line. The line is well- organized and flows smoothly, with no more than 10 percent planned downtime. Check- points Evaluation Level 1 2 3 4 5 Equipment (mainly sewing machines) Equipment is placed in no particular order, some of it rusted and unusual. Usable and unusable equipment are kept together. Unusable and unneeded equipment has been thrown out. Equipment is managed according to its frequency of use and degree of importance. The equipment is set up so anyone can find what they need to use at any time. Orderliness Reordered level (items arrive when needed, in the required quantities) Parts are reordered when 90 percent have been used up, and parts shortages still occur. Parts are reordered when 90 percent have been used up, standby occurs at assembly processes. Parts arereordered when 95percent have been used up. Problems sometimes occur during model changes. Parts are reordered when 99percent have been used up. New product orders generally arrive in time. The work site practices just-in-time manufactur -ing, reordering only as inventory is used up. Check- points Evaluation Level 1 2 3 4 5 Check- points Evaluation Level 1 2 3 4 5 Waste from searching during setups Employees wander aimlessly searching for parts and materials. Employees move in a zigzag pattern gathering up what they need. Some effort is wasted in searching for things. Setup carts are used. No time is lost in searching for things. Jig and tool storage Jigs and tools are scattered all over the place. Jigs and tools are stored in boxes. Different kinds of jigs and tools are stored separately. Jigs and tools are stored on shadow boards. Jigs and tools are arranged by frequency and order of use. Check- points Evaluation Level 1 2 3 4 5 Parts and materials Defective and good parts are stored together. Defective parts are kept on a separate shelf. Only good parts are kept in storage; nicks, humidity damage, and other problems are avoided. Storage shelves are clearly labeled and well organized. Parts are delivered just-in-time, using kanban and tracking boards. Check- points Evaluation Level 1 2 3 4 5 Drawings and charts Current drawings are jumbled together with torn, outdated charts. Drawings are organized and filed by category. Drawings that are hard to read have been replaced with new ones. Drawings are stored so they’re easy to retrieve. The system allows anyone to return drawings to their proper places. Check- points Evaluation Level 1 2 3 4 5 Documents and other written materials Documents are scattered randomly on tables and shelves; old documents lie forgotten in storage. Documents have been straight- ened enough so that someone who looks long enough will find them eventually Documents of the same type are stored in the same place. Documents and written materials are classified and color coded. Visual storage is fully imple- mented. Anyone can easily retrieve documents and return them to their proper place. Cleanliness Check- points Evaluation Level 1 2 3 4 5 Wires and pipes on the ceiling Dusty wires and pipes dangle haphazardl y from the ceiling. Wires and pipes are laid out for each line, but they are hard to clean around. Wiring for each line is bundled, making cleaning easier. Few pipes or wires are evident, and there’s no debris from overhead. No pipes or wires hang from the ceiling. Aisles Aisles are littered with cigarette butts, thread, and metal shavings. There are no large pieces of trash, but small paper scraps, debris, and dust are present. The aisles are cleaned only the morning. Surface defects discovered during cleaning are quickly repaired. Efforts are made to keep the aisles from getting dirty in the first place. Check- points Evaluation Level 1 2 3 4 5 Machines and equipment Machines and equipment are dirty and are used in that state. Visible parts of the equipment appear to be cleaned occasionall y. Equipment is cleaned during setup and changeover. Operators clean the equipment once a day. Machines and equipment have inspection labels and are cleaned every morning. Cleanli- ness of work areas Pieces of thread, scraps of cloth, and cutting dust are scattered around. There’s no large debris, but smaller debris and dust are present. The area has been cleaned. The area is cleaned every day at the end of the shift. Debris and dust are caught automatical ly to keep the area clean. Check- points Evaluation Level 1 2 3 4 5 Work tables and desks Surfaces are piled so high with documents, tools, and parts that they can’t be cleaned. Dust and debris have accumu- lated under the work tables. Work tables and desks are cleaned once a day. Even the legs of the tables and desks are clean, and al nicks and scratches have been repaired. Everything is kept clean at all times. Check- points Evaluation Level 1 2 3 4 5 Windows, window frames, and walls Window- panes are missing or cracked, with haphazard repairs. The panes are dirty, and debris have accumu- lated on the frames. The panes are dirty, but the frames are occasional- ly cleaned. Both the panes and frames are kept clean. Window shades are used; walls are kept clean and uncluttered, and no extraneous items are attached to the walls, giving the area a pleasant atmo- sphere. Check- points Evaluation Level 1 2 3 4 5 Tools, jigs, and molds Some items are rusted. No items are rusted, but some are covered with oil or dirt. Only the parts that users actually touch are clean. Grinding dust and other debris have been cleaned off, making tools and implements pleasant to handle. Devices prevent accumula- tion of debris in the first place, and any debris is quickly cleaned off. Check- points Evaluation Level 1 2 3 4 5 Standardized Cleanup Restrooms Facilities are dirty; supplies run short; unpleasant to use. Fixtures are rinsed, but they are still dirty and supplies run out sometimes. Restrooms are cleaned once a day, but they’re still a bit dirty. Restrooms are clean and hygienic, and supply shortages do not occur. Restrooms are pleasant and well lit,with music piped in. Cafeteria and employee lounges These areas are so dirty one doesn’t want to sit there. The areas have been cleaned somewhat, but they’re still dirty. One wouldn’t mind sitting there in work clothes, but not when dressed up. Chairs have been cleaned so clothes don’t get dirty. The areas are extremely clean, sanitary, and attractively decorated; guests can be taken there. Check- points Evaluation Level 1 2 3 4 5 Check- points Evaluation Level 1 2 3 4 5 Implements and jigs (low-cost improve- ments) Items have been patched together with tape and like. Signs and signal light stands are made of flimsy materials such as cardboard. Makeshift implements look weak and fragile. Some equipment is crude- looking and handmade. Well-made mechanism use simple automation. Overall layout The room is dark, making detailed work difficult. Light and illumination have been provided, reducing the possibility of on-the job injuries. The room is bright and safe,well lighting, illumination, and shades. Ventilation is sufficient, giving the work area a refreshingly airy feel. The plant is obviously a healthy working environ- ment. Check- points Evaluation Level 1 2 3 4 5 Discipline Workplace attitude Employees avoid eye contact and don’t say anything, even when they bump into others. People say “Excuse me” when they bump into someone, but otherwise ignore others. Employees make eye contact with and greet only about 10 percent of the other people. Employees acknowl- edge about half of the others they encounter. Everyone is polite and pleasant and at least smiles and nods to others. Check- points Evaluation Level 1 2 3 4 5 Smoking Employees smoke openly, even in front of first-time visitors. More than 50 percent smoke on the job. Employees smoke even while being addressed by a supervisor. Less than 50 percent smoke on the job. Employees light up immediate- ly after meals, without asking permission of visitors. Less than 40 percent smoke on the job. Employees don’t smoke if their visitor doesn’t smoke. Less than 30 percent smoke on the job. Employees don’tsmoke. Less than 30 percent smoke on the job. Check- points Evaluation Level 1 2 3 4 5 Manner of speech People use unnecessar y jargon. They generally ignore other’s ideas and are not good listeners. People have a know-it-all attitude toward others and do not actively pay attention when others are speaking. People occasional- ly speak politely and are receptive to others’ ideas about half of the time, paying attention when others are speaking. People always speak politely, with respect for their leaders. They are receptive to others’ ideas bout 60 percent of the time and nod in actively listening. People generally speak politely and respectfully to everyone. They are receptive to others’ ideas about 70 percent of the time and are positively supportive of others who are speaking. Check- points Evaluation Level 1 2 3 4 5 Clothing Many employees wear soiled clothes. Many people have buttons missing or wrinkled clothes. Most people are cleanly but carelessly dressed and don’t wear their name tags. The employees look stylish and well put together. Most employees wear even their work uniforms with pride and flair. Punctually Employees are often more than 30 percent minutes late. No one is concerned about time. Employees are often up to 20 minutes late. Some people are often lax about time. Employees phone ahead when they’ll be 10 minutes late. Employees often hurry to keep appoint- ments or to arrive within 5 minutes of the scheduled time. Employees arrive 5 minutes ahead of the scheduled time and are never late. Check- points Evaluation Level 1 2 3 4 5 Instilling the 5S spirit Employees are unaware of 5S conditions and ignore colleagues’ mistakes or infractions. They notice when conditions aren’t maintained, but mention it casually if at all They don’t talk to the person responsible, but try to fix the situation themselves or tell the other person’s boss about it. They talk to the other person on the spot, speaking softly. The other person does not accept the advice positively. They talk to the other person on the spot, and he or she accepts the advice positively. Table : 5S Evaluation Checklist (detail) Worksite Section Line Date Members 270 Check- points Evaluation Level 1 2 3 4 5 Organi- zation Orderli- ness Cleanli- ness Standard- ized Cleanup Discipline Subtotals points points points points points Total Goal: Try to raise the total by 20 points within the next evaluation period. Comments 271 Organization Warehouse (inventory manage- ment ) The storage area is too cluttered to walk around freely. Items are placed irrationally. Items have designated storage places, but they’re often ignored. Items are stored in proper locations, but no standard criteria indicate when to reorder. Items are managed for a just-in- time supply and tracked on inventory boards. Check- points Evaluation Level 1 2 3 4 5 272 Work areas Items lie scattered around for months, in no particular order. Items lie around for months, but they don’t get in the way. Unneeded items have been red- tagged and a disposal date has been set. Only items to be used within the week are kept around. Only items needed the same day are kept around. Aisles Work-in- process and other items stand in a roped-off area in the aisles. Items are set on the sides of the aisles so employees can pass, but carts and dollies cannot pass. Items protrude into the aisles. Items protrude into the aisles but have warning labels. There is no work-in- progress, so the aisles are completely clear. Check- points Evaluation Level 1 2 3 4 5 273 Work- benches and tables Tables are covered with unneeded materials. Tables hold materials that are only used once every two weeks. Tables hold extra pencils and other unneeded stationary items. Items remain on the tables for as long as a week. Only the minimum items needed are kept on the tables. Machine parts storage Parts are jumbled together with paper craps and rags. Broken and unusable parts are being stored. Frequently used parts are stored separately from those that will not be used soon. All parts are stored in standard places with standard labels according to an easily understood system. Nothing is found out of place. Check- points Evaluation Level 1 2 3 4 5 274 Line organiza- tion The line is in disarray, and planned downtime occurs more than 40 percent of the time. Planned downtime is as high as 40 percent, and the flow of the line is unclear. Planned downtime is around 30 percent, and there is waste involved in transport-ing material. Planned downtime is around 20 percent, and unfinished goods are kept on the line. The line is well- organized and flows smoothly, with no more than 10 percent planned downtime. Check- points Evaluation Level 1 2 3 4 5 Equipment (mainly sewing machines) Equipment is placed in no particular order, some of it rusted and unusual. Usable and unusable equipment are kept together. Unusable and unneeded equipment has been thrown out. Equipment is managed according to its frequency of use and degree of importance. The equipment is set up so anyone can find what they need to use at any time. 275 Orderliness Reordered level (items arrive when needed, in the required quantities) Parts are reordered when 90 percent have been used up, and parts shortages still occur. Parts are reordered when 90 percent have been used up, standby occurs at assembly processes. Parts are reordered when 95percent have been used up. Problems sometimes occur during model changes. Parts are reordered when 99percent have been used up. New product orders generally arrive in time. The work site practices just-in-time manufactur- ing, reordering only as inventory is used up. Check- points Evaluation Level 1 2 3 4 5 276 Check- points Evaluation Level 1 2 3 4 5 Waste from searching during setups Employees wander aimlessly searching for parts and materials. Employees move in a zigzag pattern gathering up what they need. Some effort is wasted in searching for things. Setup carts are used. No time is lost in searching for things. Jig and tool storage Jigs and tools are scattered all over the place. Jigs and tools are stored in boxes. Different kinds of jigs and tools are stored separately. Jigs and tools are stored on shadow boards. Jigs and tools are arranged by frequency and order of use. 277 Check- points Evaluation Level 1 2 3 4 5 Parts and materials Defective and good parts are stored together. Defective parts are kept on a separate shelf. Only good parts are kept in storage; nicks, humidity damage, and other problems are avoided. Storage shelves are clearly labeled and well organized. Parts are delivered just-in-time, using kanban and tracking boards. 278 Check- points Evaluation Level 1 2 3 4 5 Drawings and charts Current drawings are jumbled together with torn, outdated charts. Drawings are organized and filed by category. Drawings that are hard to read have been replaced with new ones. Drawings are stored so they’re easy to retrieve. The system allows anyone to return drawings to their properplaces. 279 Check- points Evaluation Level 1 2 3 4 5 Documents and other written materials Documents are scattered randomly on tables and shelves; old documents lie forgotten in storage. Documents have been straight- ened enough so that someone who looks long enough will find them eventually Documents of the same type are stored in the same place. Documents and written materials are classified and color coded. Visual storage is fully imple- mented. Anyone can easily retrieve documents and return them to their proper place. 280 Cleanliness Check- points Evaluation Level 1 2 3 4 5 Wires and pipes on the ceiling Dusty wires and pipes dangle haphazardly from the ceiling. Wires and pipes are laid out for each line, but they are hard to clean around. Wiring for each line is bundled, making cleaning easier. Few pipes or wires are evident, and there’s no debris from overhead. No pipes or wires hang from the ceiling. Aisles Aisles are littered with cigarette butts, thread, and metal shavings. There are no large pieces of trash, but small paper scraps, debris, and dust are present. The aisles are cleaned only the morning. Surface defects discovered during cleaning are quickly repaired. Efforts are made to keep the aisles from getting dirty in the first place. 281 Check- points Evaluation Level 1 2 3 4 5 Machines and equipment Machines and equipment are dirty and are used in that state. Visible parts of the equipment appear to be cleaned occasionally. Equipment is cleaned during setup and changeover. Operators clean the equipment once a day. Machines and equipment have inspection labels and are cleaned every morning. Cleanli-ness of work areas Pieces of thread, scraps of cloth, and cutting dust are scattered around. There’s no large debris, but smaller debris and dust are present. The area has been cleaned. The area is cleaned every day at the end of the shift. Debris and dust are caught automaticall y to keep the area clean. 282 Check- points Evaluation Level 1 2 3 4 5 Work tables and desks Surfaces are piled so high with documents, tools, and parts that they can’t be cleaned. Dust and debris have accumu- lated under the work tables. Work tables and desks are cleaned once a day. Even the legs of the tables and desks are clean, and al nicks and scratches have been repaired. Everything is kept clean at all times. 283 Check- points Evaluation Level 1 2 3 4 5 Windows, window frames, and walls Window- panes are missing or cracked, with haphazard repairs. The panes are dirty, and debris have accumu- lated on the frames. The panes are dirty, but the frames are occasional- ly cleaned. Both the panes and frames are kept clean. Window shades are used; walls are kept clean and uncluttered, and no extraneous items are attached to the walls, giving the area a pleasant atmo-sphere. 284 Check- points Evaluation Level 1 2 3 4 5 Tools, jigs, and molds Some items are rusted. No items are rusted, but some are covered with oil or dirt. Only the parts that users actually touch are clean. Grinding dust and other debris have been cleaned off, making tools and implements pleasant to handle. Devices prevent accumula- tion of debris in the first place, and any debris is quickly cleaned off. 285 Check- points Evaluation Level 1 2 3 4 5 Standardized Cleanup Restrooms Facilities are dirty; supplies run short; unpleasant to use. Fixtures are rinsed, but they are still dirty and supplies run out sometimes. Restrooms are cleaned once a day, but they’re still a bit dirty. Restrooms are clean and hygienic, and supply shortages do not occur. Restrooms are pleasant and well lit,with music piped in. 286 Cafeteria and employee lounges These areas are so dirty one doesn’t want to sit there. The areas have been cleaned somewhat, but they’re still dirty. One wouldn’t mind sitting there in work clothes, but not when dressed up. Chairs have been cleaned so clothes don’t get dirty. The areas are extremely clean, sanitary, and attractively decorated; guests can be taken there. Check- points Evaluation Level 1 2 3 4 5 287 Check- points Evaluation Level 1 2 3 4 5 Implements and jigs (low-cost improve- ments) Items have been patched together with tape and like. Signs and signal light stands are made of flimsy materials such as cardboard. Makeshift implements look weak and fragile. Some equipment is crude- looking and handmade. Well-made mechanism use simple automation. Overall layout The room is dark, making detailed work difficult. Light and illumination have been provided, reducing the possibility of on-the job injuries. The room is bright and safe,well lighting, illumination, and shades. Ventilation is sufficient, giving the work area a refreshingly airy feel. The plant is obviously a healthy working environ- ment. 288 Check- points Evaluation Level 1 2 3 4 5 Discipline Workplace attitude Employees avoid eye contact and don’t say anything, even when they bump into others. People say “Excuse me” when they bump into someone, but otherwise ignore others. Employees make eye contact with and greet only about 10 percent of the other people. Employees acknowl- edge about half of the others they encounter. Everyone is polite and pleasant and at least smiles and nods to others. 289 Check- points Evaluation Level 1 2 3 4 5 Smoking Employees smoke openly, even in front of first-time visitors. More than 50 percent smoke on the job. Employees smoke even while being addressed by a supervisor. Less than 50 percent smoke on the job. Employees light up immediate- ly after meals, without asking permission of visitors. Less than 40 percent smoke on the job. Employees don’t smoke if their visitor doesn’t smoke. Less than 30 percent smoke on the job. Employees don’t smoke. Less than 30 percent smoke on the job. 290 Check- points Evaluation Level 1 2 3 4 5 Manner of speech People use unnecessary jargon. They generally ignore other’s ideas and are not good listeners. People have a know-it-all attitude toward others and do not actively pay attention when others are speaking. People occasional- ly speak politely and are receptive to others’ ideas about half of the time, paying attention when others are speaking. People always speak politely, with respect for their leaders. They are receptive to others’ ideas bout 60 percent of the time and nod in actively listening. People generally speak politely and respectfully to everyone. They are receptive to others’ ideas about 70 percent of the time and are positively supportive of others who are speaking. 291 Check- points Evaluation Level 1 2 3 4 5 Clothing Many employees wear soiled clothes. Many people have buttons missing or wrinkled clothes. Most people are cleanly but carelessly dressed and don’t wear their name tags. The employees look stylish and well put together. Most employees wear even their work uniforms with pride and flair. Punctually Employees are oftenmore than 30 percent minutes late. No one is concerned about time. Employees are often up to 20 minutes late. Some people are often lax about time. Employees phone ahead when they’ll be 10 minutes late. Employees often hurry to keep appoint- ments or to arrive within 5 minutes of the scheduled time. Employees arrive 5 minutes ahead of the scheduled time and are never late. 292 Check- points Evaluation Level 1 2 3 4 5 Instilling the 5S spirit Employees are unaware of 5S conditions and ignore colleagues’ mistakes or infractions. They notice when conditions aren’t maintained, but mention it casually if at all They don’t talk to the person responsible, but try to fix the situation themselves or tell the other person’s boss about it. They talk to the other person on the spot, speaking softly. The other person does not accept the advice positively. They talk to the other person on the spot, and he or she accepts the advice positively. 293 Seiton : 5T (Tei-ji, Tei-ichi, Tei-hyouji, Tei-ryou, Tei-shoku) � Tei-ji : Fixed route (where to pass?) In order to create a flow of products, information, equipment and/or people � Tei-ichi : Fixed place (where to put?) In order to determine the place to put and take things easily, quickly and surely � Tei-hyouji : Standardized display (where is it, what is it, what/how to do?) In order to let everybody understand easily places, articles, what/how to do � Tei-ryou : Fixed quality (How much?) In order to control quantity of articles � Tei-shoku : Standardized colors (How to distinguish?) In order to prevent errors by using colors 294 Passways by the side of walks 1. Treat passway lines as passways Passway line Passway Inside of The passway Width of carriers 2. Plane off the corners Easy to turn 3. Make passways straight against entrance / exit 4. Mark floors in such a way that doors won’t hit anything when opened 295 1. Tei-ji : Fixed route � Layout of the machinery in a rectangular way � Clear and straight gangway � Gangway by the wall 296 Random placement Rectangular placement Crooked gangway Straight gangway 297 Passage for lorries Pedestrian passage Necessary space for loading and unloading No Parking No Walking 298 Passage for lorries Pedestrian passage Passage for transporting articles into and out of the building 299 Passage The necessary space for the turning of carriers Passage The necessary space for putting in and our articles to and from the store300 Wrench + Big Indicate sizes Shadow Mark the floor 2. Tei-ichi : Fixed position 301 1. Nice to look at : The number shows the sequence of using them 2. Easy to use 302 Three Kinds of Display Where is it ? What is it ? What to do with it ? Addresses of lines, processes, entrances, exits, etc. Article names, Article reference Numbers, etc. Instructions of pro- duction, SOP, Andon, Control boards, etc. Place Article Action 3. Tei-hyouji : Standardized display 303 Easy to find ? Why not display? Don’t you remember? SupervisorPlant manager Place 304 Places between columns 305 Container Shelf Match Four digits : The probability of misreading is ca. 10 ~ 20% Five digits : The probability of misreading is more than 50% Good solution : 36-485 The same level of mistake with 4 digits Indication of addresses Article 306 Trimming Line 1 2 3 4 5 6 7 8 Bodystarving 1 2 3 4 5 6 7 8 Bodyblocking Red Red Yellow Green (1) When the trimming line is working in order, its green lamp is on. (2) If a person at some stage pushes his stop button, then its yellow lamp becomes on. (3) Body starving : when there is no body to process, this lamp becomes on. (4) Body blocking : when the line stops because of blocking, this lamp becomes on. Fig. Example of display panel Action 307 Limit of the number of boxes Wrong Max Max Wrong Limit of the height 4. Tei-ryou : Fixed quantity 308 1. Color-coding of floor surface, routes 2. Color-coding of places (lines, processes) 3. Color-coding of materials (stainless steel, carbon steel, soft steel, Nylon, etc.) 4. Color-coding of oils and grease 5. Identification of safety devices, unsafe areas (tiger mark by yellow and black) 6. Display panel (in operation, feed material, abnormal, etc.) 7. Unnecessary items (red tags, yellow tags, under consideration to be discarded) 8. Color caps by occupation 9. By law : Telephone line : red Power line : orange Industrial water line : white Drain pipe line : brown Gas pipe line : green Oil pipe line : yellow 5. Tei-shoku : Standardized color 309 4.2 Knowledge management “Why do we need to invent the same solution at different plants? 310 Lost time due to breakdown by the overheat of the rotating mill bearings (6 mills) Detection of problems 8. The next step7. Effect 1 (110) 2 (270) 0 3 (495) 0 100 200 300 400 500 0201 03 04 min. Lubrication 1. Train the operator how to lubricate manually at the start of operation 2. Refasten and / or replace joints 4. Check the oil gauge easily by changing the tank position 3. Replace steel pipes with vinyl pipes in order to make it easy to see their insides. The rotating mill stops when the temperature goes over 65℃ metal body temperature sensor Indication of temperature Temperature recorder liner ★ Installation of bearing temperature monitoring equipment Transition to predictive maintenance 6. Contents of improvement5. Analysis of the actual condition 4. The tank is not properly positioned 1. Leakage of oil in the hose during the operation stoppage 3.Too long steel pipes and ore supply hoses Insufficient oil supply Difficult to carry out inspection Why does the bearing temperature increase? 2. Defective sealing at the joint sections Air gets in the pipe Breakdowns caused by the overheat of the bearing : 0 Check the values of temperature sensors twice a year →±2℃ acceptable The rotating mill is the main equipment and overheating mill bearings will create a serious breakdown. 2. Reason for selection Breakdown : 0 Saving of repair cost : $19,700 / breakdown Saving of labor cost : $1,010 / year 3. Target value 1. Theme Loss : Engineering dept.Prevention of overheat of bearings of the rotating mill Labor cost loss 4. Results 311 4.3 Time management “We must produce value every minute” Manufacturing lead time Example 312 Example : • Product development lead times from the point of fixing car design to line off • Product development lead times if we modify an available platform • Product development lead times if we use the same platform : Less than 18 months : Less than 15 months : Less than 12 months Note : Incidentally, one of the benefits of shortening product development lead times is that development cost is lower. Set base Simultaneous Engineering and KM (Knowledge Management) with excellent documentation are the key. Product development lead times 313 6. What are the pitfalls and major barriers that typically get in the way? (1) Lack/shortage of competent people at the levels of WCM leader, plant managers and pillar leaders - having a far sighted view of our business - being able to see what cannot be seen visually - being capable of making quick decisions - finding and allocating right people at right positions - driving their people to challenge to a higher competence level with high motivation and passion - not listening to what they say but checking what they say and what they have done - rewarding right people when they have done good jobs 314 (2) Market instability causes focusing on short term objectives (3) Lack of long term commitment of top management (WCM is a long journey.) 315(4) Resistance or indifference of middle class managers and engineering staff against empowering the people of lower levels in the hierarchy. (5) Misalignment of the organization Right person in right position (6) Lack of education and training on the right subject to the right people at the right moment Essential study multiplied by practice creates professionals. 316 * Competently qualified QC and PM managers * Stability of management ( 3 years) * Constant follow up of results * Willingness of accept change * Ensure the necessary time and budget * Performance evaluation (rewarding) system (7) Difficulty of creating an integrated system : * Strong and competent leader 317 Remarks * In a world class company, there are a few positive differences in many aspects from other companies. * There is no short cut to become a world class one. * The essence of success is to do right things thoroughly. * We should not make wrong efforts but right efforts to become a world class one. * To apply WCM gives a way to become a world class one. For this we must create competent leaders. * It is a matter of time. * Whether it is possible to have long term commitment of the top management, that is the question. 318 5. Five viewpoints of how WCM has been applied 319 To evaluate how WCM is applied, we need to see from the viewpoints of : LOGIC Method & tools RIGOR PACE RESULTS 320 LOGIC Example : Inventory level in days : measured in calendar days (not in working days) MTBF : measured against working hours (not days) Method & tools In WCM, for each identified problem we choose a right method (medicine) with proper tools since there is no universal approach (medicine) to solve problems (to cure all illnesses). 321 RIGOR A method (medicine) can work when it is applied correctly with rigor. PACE The market cannot wait until we solve all the problems. We need pace by involving all the people and raising their competence quickly enough. 322 RESULTS All the activities carried out must bring out good results. otherwise, we must have either attacked wrong issues or applied wrong method/tools or lack of rigor in application or lack of pace. E.g., Bronze level 10 – 20% cost reduction Silver level 25 – 40% cost reduction Gold level ca. 50% cost reduction 323 6. The importance of production engineers We also need people who are involved in continuous improvements from the engineering viewpoint. 324 • Products and the processes by which they are made are two sides of the same coin. • Process engineering is as important as product engineering • The two go together Production engineering 325 S ・ Q ・ C ・ D • Design quality • Manufacturing quality • Safety of operators • Environmental safety (ES) • Safety for the surroundings of the works (SS) • Global environment (GS), energy saving • Product liability (PL) Safety Quality Cost Delivery Customer satisfaction (CS) 326 • Division of work (specialization) • Quality control for interchangeability • Ford system (flow production) • Toyota production system • IT revolution Means and methods Production engineering Historical events of production engineering in mass production Manpower Material Energy Machine Tools What is Production Engineering? 327 328 Three Principles of Production Engineering 1. Principle(s) at the processing point 2. Its (their) operation standards 3. Minimal MH IPS 329 Ideal Production System 330 “Quality of every part and workpiece can be assured by continuously and stably moving the processing point.” 331 Processing Points 1. TOOLING ---- All the tools, jigs and machines. Relative movement between the product and the tool (processing point) 2. PROCESS ----- Process planning, operation standard 3. LAYOUT ------ Product flow, installation of equipment, movement of operators Know how of Production Engineering 332 Operating PrincipleOperating Operating Standards Turn chucked workpiece,applying the cutting tool to its surface.Move cutting tool parallel to the workpiece’s rotational axis to remove material from its surface until specified shape and dimensions are obtained. 1.Turn workpiece at the specified RPM and check for absence of wobble. 2.The cutting tool should always move in a straight line. 3. Make sure workpiece center is aligned with top edge of cutting tool. Lathe Cutting Chuck Workpiece Cutting tool Principles and operation standards 333 But we need to have competent production engineers. Evaluation criterion : Saving made by a production engineers = 5 – 6 times higher than his (her) annual income from the company 334 When working out the LCC design, answers to such basic questions as what equipment to design and what kind of design to create depend largely on the design mission (product quality and cost target, technical issues, and so on). Example : EEM ( Basic Approach to LCC Design ) Before AfterDie weight 5.2t Surface 3.7m2 Die weight 2.1t Surface 2.6m2 335 Replace Does it work as a general purpose item? Can the materials, parts, or surface finish be changed? Can old parts or equipment be used? Will the problem disappear if other causes are eliminated by improvements? Can the need for improvement be displaced to another process? Can the individual draws and machines (including attached equipment) be changed? Can the structure be changed? Can something from a different equipment process be used here? Simplify Can it be dropped altogether? Can it be made smaller (or larger)? Can it be made thinner (or thicker)? Can it be made in smaller (or larger) quantities? Can it be made lighter (or heavier)? Can it be made shorter (or longer)? Can it be made lower (or higher)? Can it produce labor savings (such as stamps, seals, and standard drawings)? Can the angle be made smaller (or larger)? Combine Can multiple parts be combined as one piece? Can they be made into a single unit? Can it be joined or integrated with other parts or processes? Can commercially available substitutes be used? Don't overprocess Can secondary repairs and adjustments be eliminated? Can the processing volume be reduced? Can the finishing process be streamlined? Table List of drawing press die improvement points IC RC 336 Roles of production engineers � Quality control � Industrial engineering � Preventive maintenance � Production control � Product development Production engineer Total productive engineer 337 Requirement for Being Competent Production Engineers 1. Able to visualize clearly what the ideal production system is. 2. Able to understand operating principles and establish correct operating standards clearly. 3. Able to make a good presentation simply and clearly so that everybody can understand it. 4. Able to establish clear decision criteria by figures. 5. Have challenging and pioneering spirits. 338 1. Advent of information oriented ------------ Engineers who can use IT society properly 2. Environmental problems -------------------- Engineers who understand the long- term value and the social value 3. Unforeseeable market ---------------------- Engineers who know what customer satisfaction means 4. The new production concept -------------- Engineers who can develop production systems with innovation and wisdoms 5. Translation of skills into ------------------- Reevaluation of human engineering capability 6. Necessity of good production ------------- Engineers with child’s engineers sensitive eyes 7. Shorter product development --------- Concurrent engineering lead times Keywords of Latest Production Engineering 339 a a b b c d e f c d e f Traditional company WCM company Number of people Traditional and WCM companies Number of people a: Basic research b: Applied research c: Product development & design d: Process Engineer (pre-production)e: Process Engineer (improvement) f: Operator 340 Administration Clerical work R & D/Design Trial Man. Experiment P.T / F.D. F. Manufacture D. J.Manufacture Production control Processing / Assembly Inspection Q.C. / Maintenance the Others Total Product development Production Preparation Manufacturing (factory) 100 80 60 40 20 0 10 8 6 4 2 0 Number of people (%) Manufacturing Q.C. Maintenance P.C. Receiving Delivery Design P.T. R & D Product design Processing Assembly / Inspection The Others Production preparation Product development Administration Special duty Tech. 54% ExperimentTrial manufacture (Example) 341 U.S.A. Japan ☆☆☆☆ The population 2 : 1 ☆☆☆☆ The number of lowers 16 : 1 ☆☆☆☆ The number of engineers 1 : 2 342 7. Ten pillars of WCM and ten management issues 343 Vision : To be the WC leader in business in Q, C and D * Fundamental quality improvement by process control for improving CSI substantially * Cost competitiveness based on elaborate cost deployment * Short lead time to serve customers better than competitors Leading position in the market place and securing a higher profit WCM 344 Policy and strategy : (1) Follow WCM way --- from a fire fighting approach to a systematic step by step improvement approach WCM Way 1. Identify What problems need to be addressed 2. Detect Where they are 3. Prioritize them based on cost deployment 4. Analyze them and choose Right methods 5. Estimate How much they cost to be solved 6. Implement solutions with rigor 7. Evaluate the achieved results against the original objective 345 (2) Development of improvement activities of Q, C and D and their implementation of action plans and programs based on the detail and SMART* data analysis to get the maximum benefits with minimum efforts because we have only limited resources. (3) Constant follow up of results by management to achieve set targets and to sustain what have been achieved. * SMART S : Specific M : Measurable A : Attainable R : Results-focused T : Timely 346 • Objective and Targets 1st level (Bronze level) : Establish the basic conditions for competitive manufacturing. *Achievement of a considerable amount of cost reduction *Approaches are still reactive, but creating knowhow of how to prevent the recurrence of the major waste and losses identified by cost deployment 2nd level (Silver level) : Achieve a substantial gains in Q, C and D in manufacturing competence. *Achievement of a substantial amount of cost reduction *Approaches are more preventive and horizontal expansion of the created knowhow to the entire factory has been carried out *Continuous searching of new waste and losses and creation of knowhow to attack them 3rd level (Gold level) : Be the WC leader in Q, C and D in business. *Achievement of an outstanding amount of cost reduction *Approaches are proactive and able to sustain the results. Continuous searching of new sophisticated knowhow from preventive approach to proactive approach *World-class in Q, C and D 347 • Plant Audit Score Guide – Covers 10 Activity Pillars and 10 Management Issues – Evaluates each from 0 to 5 [0] No action [1] Reactive approach [2] Preventive : model areas [3] Preventive : expansion to the whole factory covering all the important areas [4] Proactive : model areas [5] Proactive : expansion to the whole factory covering all the important areas – 5 is World Class – First WCM Award level is 50(Bronze) : takes 1, 2 years – Over 80 is World Class Standard 348 Seven Steps towards WCM Leading to the Achievement of World Class Performance Levels • The achievement of world class status is not a quick process. It integrates many of the tools and techniques such as Total Quality Control and Total productive Maintenance and others in a way that allows workers, managers and companies to build upon their expertise and experience. • Some people ask “Why not jump in at the top level tools and techniques? Would you not become world class right away? • People need to know about, understand and gain experience in using the basic and intermediate tools before they can be expected to be able to use the sophisticated ones properly. eg. high school, university and graduate school 349 Step 1 : Safety 7 steps Safety and environment SMAT audit Environment 7 steps Step 2 : Reliability and availability AM PM Step 7 : Fully autonomated plant World class in Q,C,D,H PD Step 6 : Synchronization between sales and production CS Step 5 : Rationalization in logistics and manning FI Step 4 : Performance FI Step 3 : Quality and yields QC FI (TQM) (JIT) (TIE) (TQC) (TQC) (WCM) (5S) Seven Steps toward WCM E E M /E P M C os t d ep lo ym en t 3 – 4 ye ar s 4 – 6 ye ar s 6 – 9 ye ar s 350 Step 1 deals with safety and environment. These are fundamental issues for a manufacturing company to be responsible for the safety of the people who work there and for being a respectable existence for the community surrounding it. Step 2 relates to reliability and availability. These require to develop the skills, capabilities and experience of operators under the heading of “Autonomous Maintenance” and to involve the maintenance crew in doing work to ensure that plant and equipment do not break down during required production periods. The maintenance crew need to develop a deep understanding of the plant and equipment under their care. This process needs to be carefully managed to balance the cost- benefit relationship between maintenance costs and delivered performance improvements. 351 Step 3 seeks to build on the quality and the yields being achieved from processes. The focus is on building –in quality at the process, and maximizing yields, looking for ways to minimize waste and losses by the use of the tools of quality and especially Total Quality Control. Step 4 brings the full focus on to performance. By this time the company and its people understand their operations and processes in a very deep way. Planned daily production output must be achieved and plant performance is at its highest level. Achievements being made at steps 1, 2 and 3 enable the improvements at Step 4. 352 Step 5 moves towards the use of the tools and techniques of Total Industrial Engineering. The focus is on rationalization in both the areas of logistics and manning levels. Efforts are made to reduce the logistics burden both internally and externally. Step 5 is also meant to introduce LCA and labour saving devices. Step 6 looks at completing synchronization between the sales and manufacturing areas. Efforts are made to look at the full supply chain and to identify and remove waste and losses throughout the system. Companies focus their attention on the advanced use of Just in Time techniques, using their responsiveness to meet market needs rather than relying on large inventories of either finished goods or raw materials. It is important to realize that Step 6 looks at waste along the full supply chain. This chain stretches from the raw material suppliers right through to the consumer. 353 Step 7 is the point where businesses are fully aligned with market requirements. Automated and autonomated plants and machines are producing at world class levels in terms of both internal and delivered Quality, where product, warranty and full life Costs are at the highest levels, where Deliveries are made as and when the customers require, each and every time and where the workforce canoperate in a safe and healthy environment. 354 Ten pillars activities to move towards WCM • The objective of all the improvement activities needs to be the achievement of World Class standards. This means that a business can compete on the world stage with the best of the bests. • The pillars to support this objective are outlined from Safety/Hygiene to environment, and the pillars represent the areas of activity required to achieve and sustain the objective. • The edifice and all improvement activities are based upon and grounded in a number of fundamental enablers. 355 World Class Manufacturing C os t D ep lo ym en t F oc us ed Im pr ov em en t Q ua lit y C on tr ol A ut on om ou s A ct iv ity P ro fe ss io na l M ai nt en an ce E ar ly P ro du ct /E qu ip m en t M an ag em en t P eo pl e D ev el op m en t E nv iro nm en t S af et y / H yg ie ne & w or ki ng e nv iro nm en t C us to m er S er vi ce Commitment, Involvement, Communication, Understanding, Measurement, Deployment, Implementation, Evaluation, Standardization with visibility, Documentation Temple of World Class Manufacturing 356 1) Commitment If the board members are not aware of or do not support the management in their objective of achieving world class levels of performance, the company is doomed to fail. Management commitment is essential to the success of WCM. Management must be open minded and prepared to challenge the existing status quo, learn WCM methods and tools, and delegate. The management team are expected to have studied, and to be familiar with, core WCM methods and tools. The Enablers of WCM 357 358 2) Involvement Total participation in every department and every level of the organization under one umbrella 359 I hear and I forget I see and I may remember but involve me and then I will understand Involvement of people is key in a WCM plant. Total participation in every Total participation in every department and level of the department and level of the organisation organisation 360 361 The management team communicate the objectives and targets clearly up to the shop floor as well as following up achievements. The management team develop and use top down, bottom up and horizontal communication channels. Overlapping structure for smooth communication from the top to the bottom and the bottom to the top. All activities are completely transparent from the top to the shop floor and vice versa by the well established communication system. 3) Communication 4) Understanding Understanding what and where problems are is the starting point for making improvements. The management team align, prioritize and agree objectives, activity plans and targets. The management team know what and where problems are, and understand where to use AM/WO, PM, QC, QM, logistics and FI and what people on what subjects and when they need to be educated and trained. 362 5) Measurement Measurement is key to (1) quantify problems and prioritize them and (2) to determine the effectiveness of improvement activities. It is necessary to measure performance before and after implementation to determine if and to what extent the changes have improved performance. 363 You can’t manage what you don’t measure. & You can’t change what you don’t manage. If you don’t know where you are heading, every route will bring you nowhere. 6) Deployment 364 365 I hear and I forget I see and I may remember I do and I will understand I learn and I improve I master and I will innovate 7) Implementation Projects results must correctly be evaluated in detail. If we are not able to access our results, we will seriously be mislead when we expand our activities. 8) Evaluation 366 Once the evaluation cycle is completed, it is time to standardize the method to manage the process to sustain the obtained result after solving the problem and not to have the same problem again. Standards make abnormalities immediately obvious so that corrective action can be taken. Standardization of problem solving still leaves room for further development to respect other people’s innovative views and ideas. Thus, the established standards can be challenged continuously to be replaced with the new ones. 9) Standardization 367 10) Documentation Documentation is to accumulate created knowhow to prevail and use it in other area and in the future. Documentation that is created but not used is a waste of resources. Useable documentation, on the other hand, helps those who want to learn, copy and improve. Visual documentation is often far more useful in describing maintenance procedures than text documentation. The document shows the details (logic, used methods/tools, what level of rigor needed, key point to solve, obtained results, the number of people involved, their positions, total MH, radar charts of their competences before and after, what they have learned) of each improvement process so that other concerned people can easily copy. All of these standards are well documented and organized in such a way that those who want to refer to them can easily access them by referring to the well organized data base with proper categorization (probably with 4 coded categories : division, major subject, machine/area, identified problem). 368 1. The Pillar of Safety is to eliminate accidents. 2. The Pillar of Customer Service (Logistics) is to satisfy customers fully from the viewpoint of TQC. 3. The Pillar of Cost Deployment is to identify where the problems are from the viewpoint of cost. 4. The Pillar of Focused Improvement is to create important knowhow and reduce cost especially by using proper method. Ten Pillars of WCM: 369 5. The Pillar of Autonomous Activities is to raise the competence of shop floor people by workplace organization in labor intensive areas and by autonomous maintenance in capital intensive areas. 6. The Pillar of Professional Maintenance is to achieve zero breakdowns with maintenance crew. 7. The Pillar of Quality control is meant to achieve zero defects from the viewpoint of TQC 8. Early Product/Equipment Management is to launch new product/equipment smoothly into production. 9. The Pillar of People Development is to educate, train and nurture people to materialize WCM since the success of achieving WCM depends on the people. 10. The Pillar of Environment is to make a respectable existence for the community from the viewpoint of environment. 370 * Fully implemented Safety Management System. OHSAS 18001 achieved. No Lost Time Accidents for the last five years. * Safety leadership at all levels is visible and appreciated by the employees. * Employee questionnaires demonstrate continuous improvement and high levels of employee satisfaction with health and safety. Health advice to include well-being programme (diet, weight, smoking and stress issues). * Autonomous safety is a way of life in the plant. Employees take leadership in some elements of the safety programme : - Use SMAT (safety management audit training) skills to change behaviors in the workplace - Coach and train other employees - Review SOP’s (standard operation procedure) + risk assessments - Analyze near miss incidents and unsafe acts * Contractors and suppliers actively involved in safety improvement programme. Safety 371 LWDC 6 3 1 1 1 1 1 1,36 0,72 0,26 0,24 0,32 0,21 0,13 0 5 10 15 2001 2002 2003 2004 2005 2006 2007 0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 LWDC (Cases) LWDC (f) FAI 18 3 2 2 2 1 1 4,08 0,72 0,51 0,72 0,65 0,21 0,13 0 10 20 30 40 50 2001 2002 2003 2004 2005 2006 2007 0 1 2 3 4 FAI (Cases) FAI (f) S1 S2 S3 S4-5 S6 S7 TIMELINES T E P IM P L E M E N TA T IO N 5 accidents in the last5 years 372 Costs INSURANCE PREMIUM COST (Savings/year) (K€) 271 211 175 160 155 0 100 200 300 400 500 2004 2005 2006 2007 2008 ---- (35%+5%) Vs 2004(35%+5%) Vs 2004(35%+5%) Vs 2004(35%+5%) Vs 2004 373 Standard 85% of the plant population: 0 accidents from 5 years n. 6 UTE: 0 accidents from 2004!!!!!! LWDC UTE - YEARS AT "0" EVENTS UTE 6 UTE 9 UTE 7 UTE 5 MAINTENANCE UTE 3 UTE 4 UTE 1 STAFF 5 Y E A R S 5 Y E A R S 5 Y E A R S 5 Y E A R S 6 Y E A R S 6 Y E A R S 6 Y E A R S 6 Y E A R S 7 Y E A R S 7 Y E A R S 7 Y E A R S 7 Y E A R S 8 Y E A R S 8 Y E A R S 8 Y E A R S 8 Y E A R S 85% 63% 46% 32% PLANT PLANT PLANT PLANT POPULATIONPOPULATIONPOPULATIONPOPULATION2007 2006 2005 2004 2003 20022008 8,6 8,6 7,6 7,6 6,6 6,6 5,6 3,6 2 374 Plant KPI 2005 2006 2007 2008 1Q+2Q 2009 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 1 1 1 1 0 12 23 51 51 20 6611724 35 41 525154 201523337143 FATAL NEAR MISSES FAI LWDC > 30 dd LWDC ≤≤≤≤ 30 dd UNSAFE CONDITIONS UNSAFE ACTS Last LWDC Jan. 2008 Last FAI Apr. 2008 19 Months without LWDC (Lost Work Day Cases) 375 * Customers are fully satisfied with the products they bought in terms of Q (quality), C (cost) and D (delivery). Every time best quality No picking errors No damages No incomplete loadings Delivery every time just in time * Product availability is 100%. * No lost orders. * The stock level is ca. one week. * All elements of the supply chain in terms of waste and losses have been eliminated. Customer service (CS) No claims 376 377WCM - Logistic & Customer Service 377 * Whatever improvements have been made, there is a philosophy to continuously seek for opportunities to reduce cost and increase productivity. For this purpose, 30% of the cost is regarded as waste and losses, and efforts are continuously made to try to identify such (probably hidden) waste and losses. * External losses and impact on plant are clearly identified (e.g. supply chain) and improvement programmes developed and implemented. * New opportunities for cost savings continuously identified. Each time waste or losses are reduced, the lessons learned are horizontally expanded to other areas. * Financial risk deployment is used to sustain what has been achieved. * Fully computerized cost controlled and managed state. Cost reduction 378 M ln € 5 Years Consistent Cost Deployment – 2007 to 2011 2007 2008 2009 2010 2011 Organization Method FeaturesRemarks WCM Saving 2007 - 2011 4.21 3.7 2.97 1.01 34.9 49.91 3.12 30 35 40 45 50 55 60 2 0 0 6 / 1 2 / 3 1 S a v in g 2 0 0 7 S a v in g 2 0 0 8 S a v in g 2 0 0 9 S a v in g 2 0 1 0 S a v in g 2 0 1 1 2 0 1 1 / 1 2 / 3 1 -30,1% Production Cost Reduction in 5 Years (based on 2009 volumes) 379 W C M / O v e ra ll S a v in g 5 Years Consistent Cost Deployment – 2007 to 2011 2007 2008 2009 2010 2011 % WCM Saving vs Overall Saving 100% 100% 90% 82% 60% 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100% 2 0 0 7 2 0 0 8 2 0 0 9 2 0 1 0 2 0 1 1 380 * There is a system to continuously increase the in-house knowledge to reduce or eliminate all possible (and probably hidden ) waste and losses. * Involvement of everybody in Focused Improvement with many, many kaizens (improvements). * Continuous searching for opportunities to improve Q, C and D using more and more sophisticated methods and tools. * The various methods/tools of intermediate and advanced levels such as PPA (Processing Point Analysis) and DOE (Design of Experiment) are utilized to attack and solve difficult problems which have been left unattended. The lessons learned are horizontally expanded to others. From inductive to deductive approaches. * Full synchronization between sales and production (shortest lead time). Focused improvement (FI) 381 Evaluation of the Result All Kaizens Approved by CD AK+ PPA 32 0,98M€ MK 283 4,317M€ SK 2,412 9,11M€ QK 4,295 4,83M€ 30,825 €/project 15,254 €/project 1,125 €/project 3,777 €/project 382 * No breakdowns and no defects due to lack of basic conditions. * Operators take care of their equipment autonomously and are responsible for daily production, being helped by professional maintenance and quality control people. * Production is made based on the given schedule without having problems. * About absenteeism, 3 x 3 x 3 (2% absenteeism rate) 6 x 6 x 6 (4% absenteeism rate) * Operators of the most competent level can be involved in early equipment management and early product management. Autonomous maintenance (AM) 383 COUNTERMEASURES AGAINST SOURCES DIRT SOURCE MODEL MACHINE - CHAMFERING MACHINING 3ND IMPROVEMENT BEFOREBEFORE AFTERAFTER STEP 2 CHIPS NEW COVER TO TAKE THE CHIPS THROUGH THE CHIPS LOADING SYSTEM 384 COUNTERMEASURES AGAINST SOURCES DIRT SOURCE MODEL MACHINE - CHAMFERING MACHINING GENERAL INSPECTION 0,5 1,3 5,7 1,5 0,8 75,0 80,0 85,0 90,0 95,0 100,0 2007 Step 1 Step 2 Step 3 Step 4 Step 5 % OEE RESULTS MODEL MACHINE - CHAMFERING MACHINING STEP 5 AM STEP 1-3 95,9% STEP 1 - 3 STEP 4 STEP 5 FI QK-SK 386 * Well established professional maintenance system ( BM + TBM + CBM). Almost no breakdowns reliability 99.9% MTBF = 10,000 Hrs MTTR = 40 – 60 Ms * Integrated CMMS for stores, work orders, equipment history, PM tasking and reporting. * Feedback to EEM. * Spare parts standardization. * Involvement of PM people at the design stage of equipment. Professional maintenance (PM) BM : Breakdown Maintenance TBM : Time Based Maintenance CBM : Condition Based Maintenance MTBF : Mean Time Between Failures MTTR : Mean Time To Repair CMMS : Computerized Maintenance Management System EEM : Early Equipment Management 387 136 95 63,3 47 0 0 0 0 0 0 18,7 29,6 32,4 45,5 48,7 53,1 52 43 39,4 36,7 33 52 43 39,4 36,7 33 27 22 0 0 263,2 235 178,7 27 22 12,7 6,5 95,7 108,8 127,4 165,6 197,4 247,7 53,1 269,7 0 50 100 150 200 250 300 . . . . . . . . . . . . . . . STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 K € x 10 00 Losses in K€ Maintenance Cost Cost + Losses Step 5 Results: Fritz Werner 1 model machine 388 * The process is well stabilized and under full process control. - Scrap rate is less than 0.1% - FTQ (First Time Quality) is greater than 99.9% - Quality control defect rate : ppm order * Well established conditions for zero defects. * For major quality factors, control charts are used to control quality not by results but by causes. * “Quality Assurance” From reactive QA matrix to proactive QA matrix via preventive QA matrix. Feedback to EPM (Early Product Management) and EEM (Early Equipment Management) * Involvement of QC people at the design stage of the new product and the new equipment. Quality control (QC) 389 KPI 2007 2008 2009 (Actual) TARGET 2009 Warranty (IPTV) 3,1 2,6 1,5 2,1 Pulls (ppm) 22 9 0 0 Assy (ppm) 0 0 0 0 FTQ (%) 97,7 99 99,3 99,3 C530 Transmission - KPI Results G R A V IT Y 22 9 0 0 5 10 15 20 25 30 35 40 45 50 2007 2008 2009 (Actual) PPM OK OK OK OK 3,1 2,6 1,5 0 0,5 1 1,5 2 2,5 3 3,5 4 4,5 5 2007 2008 2009 (Actual) IPTV 3 MIS 97,7 99 99,3 95 95,5 96 96,5 97 97,5 98 98,5 99 99,5 100 2007 2008 2009 (Actual) % 0 0 0 0 5 10 15 20 25 30 35 40 45 50 2007 2008 2009 (Actual) PPM Warranty 6 years Pulls Assy FTQ 390 * There is a good EEM system based on well established front loading concept to guarantee Quality, Cost and Delivery. * To assure quality by equipment, the five questions for zero defect are carefully checked. * Ease of operation and maintenance. Ease of inspection. Visual management is fully applied. * The EEM system proves shorter lead times and less equipment costs and running costs. * Each time any major investment is made, the EEMsystem is refined. Early equipment management (EEM) 391 EEM - KAI RESULTS C635 - Problems found for each step [ n°°°° ] 0 100 200 300 400 500 600 700 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% 0 1 2 3 4 5 6 7 8 Verrone Projects: % of problems found for each step [ n°°°° ] 1st project3rd project 2nd project 4th project C635 project Progressive movement of peak to early steps 392 * There is a systematic education and training programme to create competent human resources at every level such that the company can be continuously developed into a World Class one. * Refined and optimized roles, exceptional knowledge and skills. * Business leaders are knowledged and skilled in harvesting and channeling creative thought processes to generate strategy that leads to “cutting edge” business dominance. * Success events recognize and promote continued generation of new innovative ideas. * Ever-learning organization and continuous assessment to ensure prosperity for the company and for oneself. People development (PD) 393 BASIC LEVEL INTERMEDIATE LEVEL ADVANCED LEVEL Assembly Production Specialist % 26 Basic Level Prod. Spe. % 64 Int. Md. Level Prod. Spe. % 10 Adv. Level Prod. Spe. DEVELOPMENT and CLASSIFICATION of SPECIALISTS 394 * There exist well established systems for environmental load reduction, operating system, environment risk reduction and they are all actively working well. * Zero major environmental and site risk in the last five years. * There is a philosophy to continuously seek for opportunities for better environment. * Environmental and site risk training include proactive training on forthcoming issues. * Fully implemented environmental management. Environment 395 Measures against sources of pollution ASPETTO PARAMETR O LAW LIMIT WARNIN G LIMITS ACTUAL % OK/ KO Emissioni in atmosfera n°°°° 25 impianti < 1 mg/m3 n°°°° 33 impianti > 1 <2 mg/m3 -90% -80% Scarichi idrici Chemical oxigen demand Hidrocarbons Oils Ferro Zinco mg/l 160 mg/l 5 mg/l 20 mg/l 2 mg/l 0,5 mg/l 120 mg/l 4 mg/l 15 mg/l 1 mg/l 0,3 mg/l < 30 mg/l < 0,5 mg/l < 0,5 mg/l < 0,2 mg/l < 0,04 -81% -90% -98% -91% -92% Acqua di falda Hidrocarbons total µg/l 350 µg/l 100 N°°°° 8 piezzometri µg/l < 10 -99% Rumore esterno Livello sonoro diurno 70 dB nott. 60 dB diurno 65 dB nott. 55 dB N°°°° 6 rilievi Valore max 49,0 Valore max 43,9 -30% -27% Rifiuti Restituzione 4^ copia formulario 90 giorni 70 giorni Entro 30 giorni Entro 60 giorni 93% 7% Polveri totali 10 mg/m3 5 mg/m3 Step 2 Emission (Polveri totali) 10 1 0 2 4 6 8 10 12 Legal Limit Actual m g /m 3 5 Alarm threshold - 90 % Underground water (Hydrocarbons total) 350 10 0 50 100 150 200 250 300 350 400 Legal Limit Actual m ic ro g ra m m i/l it ro 100 Alarm threshold < - 99 % Water discharged (Chemical oxygen demand - C.O.D.) 160 30 0 50 100 150 200 Legal Limit Actual m g /l 120 Alarm threshold - 81 %< 396 397 To implement WCM successfully 1. Many good production engineers are wanted -- Knowledge 2. Motivated workers are required -- Willingness To motivate workers, getting good foremen is the key 3. Good knowledge on WCM must be created quickly enough. -- Concentration 4. A good combination of the concerned people and their team work are vital to get things done. -- Cooperation To make things done, the following four are the keys : (1) Knowledge (2) Willingness (3) Concentration (4) Cooperation 398 Knowledge Without knowledge we cannot do things properly. * Lack of know-how to reduce waste and losses * Difficulty in obtaining a good and competent consultant 399 Willingness : management issues * Lack of long term commitment of the top management * How to convince senior managers who are not interested in WCM, who do not believe in such a collective measure as WCM, who do not want to understand what WCM is all about and who react politically against WCM * Resistance or indifference of managers and engineering staff against empowering the people of lower levels in the hierarchy * How to convince workers, especially when they are unionized because WCM eventually creates excess people 400 Concentration : the necessity of success stories * Shortage of production engineers * How to get competent maintenance and quality managers because they are key people to the success of WCM journey * Difficulty in finding time to practice WCM 401 Cooperation : the necessity of team work * How to relate WCM activities with cost reduction 402 403 Lack of willingness Management issue Top management’s commitment Fear of making failures Management issue Step by step approach Seeing is believing Unclear view on what to do Management issue Clear objectives and targets to achieve Clear specifications of the improve- ment schedule 404 Lack of knowledge on how to do Management issue Allocation of most qualified people to pilot projects knowledge acquisition concentration Lack of competent people Resource problem Commitment of the organization * Education and training Lack of activities for implementation Resource problem Time and budget for improvement * WCM hours, WCM days opportunity maintenance 405 Lack of checking results Management issue Improvement activities, first qualitatively and second quantitatively Lack of benefits as results Poor knowledge Up to small detail oriented activities Forgetting the original The importance of deployment objectives Lack of horizontal expansion Management issue Total participation Lack of continuation Management issue Total participation, reward system 406 Successful implementation Willingness Vision & problems identification Clear target & deployment Analysis (method ) Countermeasures implementation Check the results Corrective actions P P P P DDDD C C C C A A A A 407 Possible Causes of Failure and Ways to Deal with Them : 1. There is no commitment nor support of the top management. 2. The employees are complacent with the present situations. 3. The improvement program is too radical, taking no notice of the status quo. 4.The rules of the society or the company culture are neglected in the improvement program. 5.The objectives and targets of improvement and/or improvement are not clear. 6.Improvement and/or improvement are planned based on the benefits of one 7.specific individual or on a personal credit. Involvement of the concerned people in making an action program of improvement and/or improvement plan has not been sufficient. 7. Demands for improvement and/or improvement are not understood thoroughly. 8.The promoter or the promoting team of improvement and/or improvement are not trusted. 9. There is fear for unpredictable results or failures. 10. There seem to be no rewarding in making improvement and/or improvement. 408 The problems to be managed 1. Shortage of production engineers 2. How to motivate operators toward improvements One of the elements of WCM is the involvement of operators by autonomous maintenance, etc. but implementing WCM creates excess operators. Contradiction ! 3. Risk of losing core people after giving extensive education and training Major expenses for implementing WCM are the ones for education and training and the costs for restoration and correction of the machinery. 4. More authority to the people of lower level Indifference, or in the worst case, resistance from the middle management 5. Increase of maintenance cost in the beginning � More comfortable to carry out work � Less overtime work � Less dangerous operation � Better environments � Pleasure of being recognized by seniors on improvementresults � Pleasure of developing creativity through improvement � Having pride to be an important and indispensable person for the job � Performance evaluations by the results of activities � Motivation of operators : from forced activities to enjoyable activities 409 410 To manage, promote and communicate with people, the followings are the key to the success : 1. To have the commitment of the top management 2. To have a simple and clear plan 3. Not to tackle everything at once, but give priorities 4. To communicate better to let the people understand that they can find a way out of the difficulties 5. To choose right people and empower them. To carry out objective evaluation of the employees by investigating what they have promised and what they actually have done. 411 Basic Requirement for WCM implementation • Strong and competent leader • Stability of management ( < 3 years) • Constant follow-up of results • Willingness of accepting changes • Necessary time and budget