8D报告培训资料(PPT 40页).pptx

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1、15/30/2002 Rev. Orig2A CAR/8D Report is a method to document, communicate, track and drive resolutions for quality issues.CAR/8D是针对品质问题而进行文件化、沟通、追踪及解决问题的方法。An 8D report is Ford Motor Companys format for problem solving. It is the preferred method used throughout our industry.CAR/8D报告是福特公司解决问题的格式。它是我

2、们所有行业首选的解决问题的方法。5/30/2002 Rev. Orig3Immediate Containment. 采取迅速的围堵措施（短期对策）Clear identification of Root Cause. 真正识别问题产生的根本原因（真因）Robust Corrective Actions. 充分的纠正措施Verified Corrective Actions. 验证纠正措施System fixes. 系统化（即纠正措施标准化或文件化）100% On-time response. 100%准时反应（即及时解决问题，准时回复客户）Eliminate the problems the

3、 first time. 做到第一次就消除问题所在Prevention of future problems. 实现潜在问题的预防5/30/2002 Rev. Orig4Not identifying the true processes, escape, and system root causes. 没有识别出过程、流出（逃脱）及系统的根本原因（真因）Not implementing system corrective actions. 没有实施系统性纠正措施Not properly containing entire pipeline of product. 没有针对产品的所有流程采取正

4、确的围堵措施Unclear or ambiguous wording. 对问题采取的不明确或模棱两可的描述Not meeting customer expectations regarding content and cycle time. 不符合客户关于内容及回复时间的要求5/30/2002 Rev. Orig5 All corrective action requests must be completed using an 8D report (unless a different method is required by Customer). 所有的纠正措施要求必须采用8D报告形式（

5、除非客户要求采用不同的方法 Must use Corporate format. 必须采用Vishay公司的格式 Must use 8D checklist as a guideline in completing the 8Ds. 在完成报告的过程中必须采用8D检查表进行检查5/30/2002 Rev. Orig6D1 Establish a Team 组建问题解决小组D2 Describe the Problem 描述问题D3 Contain the problem 采取围堵措施（即短期对策）D4 Identify the root causes 识别/确认根本原因（真因）D5 Corre

6、ctive Actions 确认纠正措施D6 Implement Corrective Actions 实施纠正措施（即长期对策）D7 Prevent Recurrence 防止再发D8 Congratulate the Team 小组庆祝5/30/2002 Rev. Orig7 Establish Cross Functional Team. 建立跨功能小组 Identify a Champion. 确定小组长 Members should be from all affected areas, not just quality! i.e. Sales, Logistics, Marketi

7、ng, Engineering, Line Operators, Production Mgmt., etc 小组成员应来自于所有被涉及区域，并非只是质量部！如销售、物流、市场、工程、生产线操作工、生产管理等等 The Team should ask themselves do they have the correct skill mix to solve the problem? 小组应询问自己是否具有解决问题所必需的能力?5/30/2002 Rev. Orig8 Clearly Identify and Define the Problem. 明确识别和定义问题 In many case

8、s Problems are ambiguous or imprecise. 在许多案例中，问题是模棱两可或不明确的 Clarity ensures that everyone is trying to solve the same Problem. 明确问题可确保任何人将尽力去解决问题5/30/2002 Rev. Orig9 What is the Problem? Describe the failure mode. 问题是什么? 描述失效模式 Where was it detected? 问题是在哪里被发现? When was it detected? 问题是什么时候被发现? What

9、lots/date codes are affected? 被影响的批次/日期码是那些? How many pieces are affected? 被影响的数量是多少? Is the Customer information included? 是否包含客户信息?5/30/2002 Rev. Orig10Poor Problem Description 差劲的问题描述 “Customer received wrong part.” 客户接收到错误零件Good Problem Description 完美的问题描述 “Customer received incorrect value CRCW

10、-0603 resistors on 4/1/02. Customer P.O. 441960 (Vishay P.O. X765644-30) specified CRCW-0603, 8.2K ohm and received CRCW-0603, 82K ohm parts.” 客户在4/1/02接收到阻值错误的CRCW-63电阻。客户订单号码441960（ Vishay订单号码X765644-30）指定的CRCW-63电阻的阻值为8.2欧姆，而收到的CRCW-63电阻的阻值为82欧姆。5/30/2002 Rev. Orig11Containment is similar to quar

11、antine. Quarantine does not cure a disease, but it keeps it from spreading. 围堵相似于病人隔离。隔离虽不能医好疾病，但可以防止疾病的传播Find and segregate nonconforming products to prevent shipment to Customer. 查找和隔离不良品，防止发往客户Shutdown processes/equipment that is producing bad product. 停止正在制造不良的加工或装配Make sure containment actions

12、are effective. 确保围堵措施是有效的5/30/2002 Rev. Orig12Has an effective containment method been identified and documented? 是否有有效的围堵方法已经被确定和文件化?Have dates (or date codes) for temporary containment actions been identified? 是否已经确定了临时围堵措施实施的日期（日期码）?Have actions been verified with before and after data? 是否已经验证了围堵

13、措施实施前后的效果?Has the entire pipeline been contained (production, warehouse, distributors)? 是否对产品的所有流程采取了围堵措施（如生产线、仓库及发 货员）?Has detailed instructions on containment been issued to people responsible for containment? 是否给负责实施围堵措施的人员发放了详细的围堵作业指导书?5/30/2002 Rev. Orig13 Poor Containment 差劲的围堵措施 “Operator was

14、 alerted of the failure.”让操作工提防/注意此不良 Good Containment 完美的围堵措施 “Production and warehouse material was inspected on 4/1/02 by J. Smith (quality assurance personnel) and there were 0 lots out of 320 containing mixed devices.” J. Smith（质量保证人员）于4/1/02检查了生产线及仓库材料5/30/2002 Rev. Orig14 Root cause is the di

15、sease (starting point) that sets in motion the cause and effect chain that creates the problem or problems. 根本原因是产生问题或问题群的原因和影响开始发作的病 因（发作点） Be wary of selecting symptoms instead of root causes If you fix a symptom you wont solve the problem. 必须提防以症状代替病因，如果你仅仅关注一个症状，你将不能 解决问题 Poor root cause selecti

16、on results in poor corrective actions. 选择不正确的根本原因将导致不正确的纠正措施 Use tools such as 5 Why analysis to ensure that the root cause has been identified. 应用象“5个为什么”分析法，确保根本原因被识别和确定5/30/2002 Rev. Orig15Has the process root cause been identified and established? 制程根本原因是否已经被识别和确定?Has the escape root cause been

17、identified and established? 流出（逃脱）根本原因是否已经被识别和确定?Has the system root cause been identified and established? 系统根本原因是否被识别和确定?Do the three root causes explain all we know about the problem (timing, failure mode, failure amount, etc)? 三种根本原因是否可以解说我们所知道的问题所有方面（如时 间、失效模式、失效数量等等） ?Was the root cause analys

18、is performed using the 5 why technique? 根本原因分析是否使用了“5个为什么”方法?5/30/2002 Rev. Orig16Poor Root Cause Statement 差劲的根本原因 “Operator placed wrong label on Package. It was an Operator Error.” 操作工在包装箱上贴错了标签，是操作工的错。 Good Root Cause Statement 完美的根本原因 “Process Root Cause: An incorrect label was placed on the pa

19、ckage because the current system allows for multiple lots to be processed (batch printing) at one workstation.” 制程根本原因：目前的系统允许在同一个岗位加工种类不同的批次，导 致错误的标签被贴在包装箱上 “Escape Root Cause: The mis-labeled product escaped because there was no verification step at or after the label process. ” 流出根本原因：贴错标签的产品流出是因

20、为在该岗位或后续过程没有标 签验证步骤5/30/2002 Rev. Orig17Corrective actions should fix the disease or root cause. 纠正措施必须是针对病因或根本原因（真因）Corrective actions should address process, escape, and system root causes. 纠正措施必须致力于制程、流出（逃脱）及系统的根本原因 （真因）Negative effects of corrective actions should be considered. 必须考虑纠正措施带来的负面影响（

21、即边界效应）Retraining of operators is not a corrective action. 操作工的再教育不属于纠正措施范畴Increased inspection is not a corrective action. 增加检查（人员、数量、频次等）也不属于纠正措施范畴5/30/2002 Rev. Orig18 Have primary and alternative corrective actions been identified? 是否已识别和确定首选及多选的纠正措施 Do corrective actions address process, escape,

22、 and system root causes? 纠正措施是否是针对制程、流出（逃脱）及系统的根 本原因 Have negative effects of corrective actions been considered? 是否考虑了纠正措施的负面影响（即边界效应）5/30/2002 Rev. Orig19Poor Corrective Action 差劲的纠正措施 “Re-train operator.” 操作工再培训Good Corrective Action 完美的纠正措施 “Process Corrective Action: Change workflow to a serial

23、 process whereby only one lot is at the printing station at all times. This will eliminate the chance of mixing the product labels.” 制程纠正措施：变更流程，在任何时间标签印刷岗位只加工单一批次 “Escape Corrective Action: Implement a barcode verification step to ensure that customer label matches the factory label.”流出（逃脱）纠正措施：实施标

24、签验证步骤，确保工厂标签和客户 标签一致5/30/2002 Rev. Orig20 Step where we monitor /validate that the corrective actions have eliminated the root cause(s). 确定我们监控/验证纠正措施是否已经消除了根本原因的步骤 Dates for the start and completion of the corrective action should be identified along with the responsible person. 和纠正措施实施责任人一起确定纠正措施开

25、始实施和完成的日期5/30/2002 Rev. Orig21 Have corrective action dates along with responsible individual been identified? 是否已经确定纠正措施实施日期和责任人? Have corrective actions been validated to eliminate root cause(s)? 对纠正挫伤是否进行了验证，它能否消除根本原因?5/30/2002 Rev. Orig22 Poor Corrective Action 差劲的纠正措施 “Complete.” 已完成 Good Corre

26、ctive Action 完美的纠正措施 “Corrective actions stated in D5 were completed on 4/1/02 by J. Smith. Post labeling inspection has discovered 0 failures out of 400 lots inspected as of 5/1/02.” J. Smith已于4/1/02完成了D%中描述的纠正措施。 5/1/02在标签检查岗位共检查了400个批次，没有发现一批标签不良5/30/2002 Rev. Orig23 Prevent the problem from retu

27、rning by addressing production, business, management, or engineering processes. 通过向生产、业务、管理层、工程传达，以防止问题再发5/30/2002 Rev. Orig24Do preventive actions address basic system issues? 预防措施阐述是否基于基本的系统问题Have FMEAs, control plans, and/or procedures been updated to ensure that the systems will prevent issues f

28、rom re-occurring? FMEA、控制计划及/或程序是否已经被更新，以确保系统可以防止问题再发Have preventive actions been agreed upon by all affected areas? 预防措施是否已经征得被影响区域的认可Do unfinished preventive actions have a champion and a projected completion date? 未完成预防措施是否确定了组长和其完成日期 5/30/2002 Rev. Orig25Poor Preventive Action 差劲的预防措施 “Same as c

29、orrective actions.” 预防措施同于纠正措施Good Preventive Actions 完美的预防措施 “Work instruction and control plan have been changed on 4/1/02 to eliminate batch processing and to add barcode verification processes” 作业指导书及控制计划已于4/1/02进行变更，以消除批次处理问题及增加标签验证过程 “Corrective and Preventive actions were also applied to Vish

30、ays sister factories in China on 4/1/02.” 纠正/预防措施已于4/1/02应用于Vishay在中国的兄弟工厂 “Audit checklist was modified on 4/1/02 to include monthly checks to ensure single lot processing.” 检查表已于4/1/02修订，包括月检以确保单一批次被加工5/30/2002 Rev. Orig26 Varies by facility but most often overlooked. 5/30/2002 Rev. Orig27 8D shou

31、ld supply facts not emotions. 8D应该提供事实，不应带有感情色彩 Avoid using internal acronyms. 避免使用公司内部缩写 Be complete in your descriptions. 叙述应该完整 It is our responsibility to fix Vishay problems even if we do not have traceability information. 即使没有可追溯的信息，但关注Vishay问题是我们的责任5/30/2002 Rev. Orig28Heart Inc, a manufactur

32、er of Heart defibulators, returned 25 shorted parts with multiple date codes on 5/1/02. Heart stated that the 25 parts failed at there final test. Hearts failure rate is 10 PPM. They expressed concern that failed defibulators might reach their customers. Internal analysis by Vishay indicates that th

33、e 25 parts are indeed shorted and they are not the device type (PN# V123) that Vishay sells to Heart Inc. In fact, the 25 parts are a mixture of different Vishay devices spanning the last 3 months of production (February, March, and April). All returned devices had a lower power rating than what is

34、supplied to Heart, which is why they shorted in Hearts application. Additional analysis, points to the fact that the parts were mixed at marking. The marking equipment has a known defect in which the last few parts might get stuck in the track due to random but frequent sticking of the pushpin mecha

35、nism when the bowl feeder becomes empty. To combat this issue, the engineer during the initial discovery of the issue instructed the operators to inspect the track prior to starting a new lot. In the event that parts were left over the operator was to remove the devices and call the technician to re

36、pair the pushpin. In addition to the change in procedure, production implemented a sample outgoing electrical test (200 pieces per 20,000 piece lot) to eliminate mixed lots. The operator on the marking equipment was new (approximately working for Vishay for 3 months) and was not performing the inspe

37、ction as required by the procedure. 5/30/2002 Rev. Orig29NameFunctionChampionJ. SmithProduct Eng ManagerTeam LeaderJ. DoeQuality EngineerMembersR. NeilProduction SupervisorB. DellProduction EngineerV. ChambersLogistic SupervisorA. MayMaintenance EngineerN. PhillipsTraining SupervisorS. RobinSales5/3

38、0/2002 Rev. Orig30Heart Inc. returned 25 V123 parts on 5/1/02 with the following datecodes that failed short at their final test. Heart 公司在 5/1/02返回25个V123产品，产品日期码如下，这些产品是其产品终检时发现短路的# of Parts Date Code 10 0202 10 0203 5 0204The estimated failure rate is 10PPM and the customer is concerned about fie

39、ld reliability.估计失效率为10PPM，而且客户非常担心已流入市场5/30/2002 Rev. Orig31All product in production and in Vishays warehouses was quarantined (by V. Chambers on 5/2/02) and 100% electrically tested (by B. Dell on 5/4/02) to eliminate the mixed product. 12 mixed parts were removed out of 60,000 parts tested. All

40、retested lots will be marked with a “green” sticker to identify that they have been retested.所有在线及在库品全部隔离（ V. Chambers 已于5/2/02完成），并进行100%电性测试以消除混入产品（ B. Dell已于5/4/02完成） ，从60,000个中剔除出12个异类产品。所有重测的产品批均用“绿色”标签标识以示重测。5/30/2002 Rev. Orig32Problem: Shorted Parts问题：短路Why? Wrong parts were sent to Customer

41、 and the parts were underrated for the application. 为什么：错误的元件发给客户及其用途被低估Why? Residual parts were left in the marking equipment causing the subsequent lot to contain mixed parts.为什么：残留的元件被遗留在打标机上导致其混入后续的批次Why? The push pin failed to clear the residual parts.为什么：推针失效而无法清除残留元件5/30/2002 Rev. Orig33Probl

42、em: Shorted Parts问题描述：短路Why? Wrong parts were sent to Customer and the parts were underrated for the App. 为什么：错误的元件发给客户及其用途被低估Why? Residual parts were left in the marking equipment causing the subsequent lot to contain mixed parts.为什么：残留的元件被遗留在打标机上导致其混入后续的批次Why? The push pin failed to clear the resi

43、dual parts.为什么：推针失效而无法清除残留元件Why? The actuators on the push pin are old and need to be replaced.为什么：推针执行器老化而需要更换Why? We do not have a detail preventive maintenance plan for replacement of worn-out /old equipment.为什么：我们没有一个详细的针对替换破损/老化设备的维护计划5/30/2002 Rev. Orig34Problem: Mixed Parts Escaped to Custome

44、r问题描述：混入产品流到客户Why? Sample test post marking will not always detect PPM issues.为什么：抽样检查岗位无法发现PPM级缺陷Why? Sample size is too small. 为什么：抽样量非常少5/30/2002 Rev. Orig35Analysis: Vishay verified that the parts are shorted. It was determined that the shorted parts were mixed devices that had lower power ratin

45、gs than the ones supplied to Heart. The mix occurred at Vishays marking operation due to residual units left on the marking machine during February, March and April. Vishay had a procedure in place for the operator to verify the track was empty prior to the start of a new lot. The procedure was not

46、followed.分析： Vishay确认产品是短路，最终原因被确定为被发给Heart公司额定功率低的产品混入到设备中，混入现象发生在Vishay的打标岗位，是在2月、三月份及四月份残留元件被遗留在打标岗位所致。 Vishay在操作岗位有作业程序，规定在开始打标新的批次时须检查轨道是干净的，但程序没有被执行。Process Root Cause: The actuator in the push pin mechanism used to flush residual units from the track stop working.制程根本原因：推针执行器被用来剔除轨道停滞工作时的残留元件

47、Escape Root Cause: The sample size for the post marking test is not sufficient enough to detect PPM mixture levels.流出根本原因：在打标岗位的抽样检查数对混入水平在PPM级的不良来说是不足的System Root Cause 1: The actuators are not included on a preventive maintenance schedule thus allowing actuator to degrade and become defective.系统根本

48、原因1：执行器没有被纳入保养计划，这样允许执行器劣化及没有效力System Root Cause 2: Current training plan does not require training verification therefore it was not known that the operator was not following the operating procedure.系统根本原因1：目前的培训计划中没有要求进行培训效果验证，所以并不知道操作工没有遵守作业程序的规定5/30/2002 Rev. Orig36Process Root Cause: Replace ac

49、tuators on all marking equipment to eliminate residual parts.制程根原因：在打标机上替换执行器以除去残留部件Escape Root Cause: Implement 100% quality test post marking to ensure that mixed parts will not be shipped to Heart.流出根本原因：在打标岗位实施100%检查确保混入的部件不被发送Heart公司 System Root Cause 1: Incorporate a part replacement/refurbish

50、 program into the existing preventive maintenance schedule to ensure that parts are replace before they cause a problem.系统根本原因1：在现有的检修计划中增加部件置换/刷新项目，以确保部件产生问题时被置换System Root Cause 2: Modify training program to include a verification step prior to granting certification.系统根本原因2：修订培训程序，包含在批准合格前有一个检验步骤