PFMEA培训资料

Click to edit Master title style,Click to edit Master text styles,Second Level,Third Level,Fourth Level,Fifth Level,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,Process FMEA,Process FMEA,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,What is a Process FMEA?,什么是程序,FEMA？,A systemized group of activities intended to:,一个系统化,团队,：,Recognize and evaluate the potential failure of a process and its effects,确定和评价过程的潜在失效和后果,Identify actions that could eliminate or reduce the chance of the potential failure occurring,确定可以消除或减少潜在失效发生时机的措施,Document the process-it defines what a process must do to satisfy a customer,把以上的措施规定下来并标准化操作,JIS,Process FMEA,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,Purpose of PFMEAs,PFMEAs,的目的,To identify potential failure modes and rate the severity of their effects,确定有哪些潜在失效模式和其后果严峻性,To identify Critical Characteristics,确定评价特性,To rank order potential process deficiencies,确定潜在过程缺陷的等级,To focus on eliminating process concerns and help prevent problems from occurring,注意消除装配过程的缺陷和防止问题发生,Quality check standard,Standardized inspection,In process validation,Andon system,GMS,DFMEA/PFMEA,KCDS(KPC/PQC),Design for 6 sigma,DFM/A,CPIT,Red X,Kepner Trago,PFMEA RPN Top 5,Suggestion schemes,Quality circles,为什么要使用,PFMEA,Process FMEA,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,Customers of FMEAs FMEAs,的顾客,The customer for a Process FMEA is normally seen as the“End User”.,1.,过程,FMEA,的顾客通常被视为“最终用户”，也指车辆的最终用户。,However,customers can also be any subsequent or downstream manufacturing or assembly operation,as well as a service operation.,2.,但,也可以是后续的或下一制造或装配工序，以及服务工作,。,Process FMEA,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,When is a PFMEA Completed?,PFMEA,什么时候完成,The PFMEA is a living document and must be updated whenever significant changes in the manufacturing or assembly process occur,PFMEA,当：,零件设计基本完成；,基本操作已经了解；,相关操作流程已经明确；,就可以制定,PFMEA,，原则上越早越好。,PFMEA,同时还是一个动态的文件，在制造和装配过程中发生任何显著变化时，文就可件必须更新。,Process FMEA,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,The FMEA Form:FMEA,表格,Process FMEA,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,Heading:,提纲,1.,FMEA Number-The number used for tracking,FMEA,编号 -跟踪用的号码,2.,Item-The number of the System,subsystem,or component being,analyzed,工程 -填入所分析的系统，子系统或零件的安装过程名称。,3.,Process Responsibility-OEM,department,group,过程责任-整车厂(,OEM)，,部门和小组,4.,Prepared by-Name,department,telephone number,编制者-姓名，部门，号码,5.,Model Year(s)/Vehicle(s)-Intended model years and vehicle lines,年型/车型-已知的年型和车型,Process FMEA,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,Heading(contd):,提纲,6.,Key Date-Initial PFMEA due date-cannot exceed the SOP date,关键日期 -初次,PFMEA,预定完成的日期-不应超过方案开始生产的日期,7.,FMEA Date-Date the original PFMEA was compiled and latest,revision date,FMEA,日期-编制,FMEA,原始的日期及最新修订的日期,8.,Core Team-Names and departments of responsible individuals,which have authority to identify and/or perform tasks,核心小组-有权确定和/或执行任务的责任部门和个人姓名,Process FMEA,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,9.,Process Function/Requirements,过程功能/要求,A description of the process or,operation being analyzed,(i.e.turning,boring,tapping,welding,assembly.,简单描述被分析的过程或工序(如车，钻，攻丝，焊接，装配)，注意尽量一个过程只包含一个操作；不要使用比方先装*零件、再装*零件、最后安装*零件这类描述。,Indicate as precisely as,possible.,尽可能确切的说明（比方装配时使用的零件数量、装配时使用的工具型号、相关的扭矩信息等）,Process FMEA,PlanTech,Inc.,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,10.,Potential Failure Mode,潜在失效模式,The manner in which the process could fail to meet the process,requirements,所谓潜在失效模式是指过程可能发生的不满足过程要求和/或设计意图的形式。,It is a description of the non-conformance at the specific operation,是对某具体工序不符合要求的描述,Assume incoming parts are correct,假定提供的零件/材料是合格的。,List each potential failure mode.Assume the failure could occur but may not necessarily occur.,列出每一个潜在失效模式。假设这种失效可能发生，但不一定非得发生。,How can the process fail to meet specifications?,过程/零件怎么不能满足标准？,What would a customer consider objectionable?,顾客会提出什么异议？,Process FMEA,PlanTech,Inc.,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,10.,Potential Failure Mode(Contd),潜在失效,模式,Typical Failure Modes:,典型的失效模式,同一工位有类似的零件，错装,错误的零件（选装错）,漏装零件,/,漏操作,零件安装方向错误,零件安装不到位,错误的扭矩,零件损坏，破坏,危险,/,难安装,错误的工具（工位上有类似的工具但扭矩不一）,错误的工装，夹具,零件污染,Process FMEA,PlanTech,Inc.,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,11.,Potential Effects of Failure:,潜在失效,后果,The effects of failure on the next customer(s).Remember,the customer is the next operation,subsequent operations,or the end user.Each must be considered.,指失效模式对顾客的影响。应该记住，顾客可以是下一道工序，后序工序或最终用户。这些都是必须考虑到的。,Typical Effects of Failure:,典型的失效后果,End User,最终用户,Downstream Operations,后续工序,Noise,噪声,Broken tap,龙头破损,Unstable,不稳定,Cannot fasten,无法紧固,Rough,粗糙,Cannot complete assembly,无法安装到位,Poor appearance,外观不良,Does not connect,不连接,Impaired operation,功能欠缺,Warranty issue,售后问题,Unpleasant odor,异味,Endangers operator,危害操作者,Process FMEA,PlanTech,Inc.,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,Process FMEA,PlanTech,Inc.,Failure Mode and Effects Analysis,过程,FMEA,失效模式及后果分析,12.,Severity,严峻度,An assessment of the seriousness of t