PFMEA introduction

PFMEA introduction

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时间:2019-10-08

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1、ProcessFMEAIntroductionTheseareextractsfromPOTENTIALFMEAREFERENCEMANUAL.OverviewThismanualintroducesthetopicpotentialFailureModeandEffectsAnalysis(FMEA).AnFMEAcanbedescribedasasystemizedgroupofactivitiesintendedto:Recognizeandevaluatethepotentialfailureofaproduct/processanditseffects,Identifyact

2、ionswhichcouldeliminateorreducethechanceofthepotentialfailureoccurring,andDocumenttheprocess.Itiscomplementarytothedesignprocessofdefiningpositivelywhatadesignmustdotosatisfythecustomer.reHistoryAlthoughengineershavealwaysperformedanFMEAtypeofanalysisontheirdesignsandmanufacturingprocesses,thefi

3、rstformalapplicationofthePMEAdisciplinewasaninnovationoftheaerospaceindustryinthemid-1960s.FMEAImplementation1Becauseofacompany’scommitmenttocontinuallyimproveitsproductswheneverpossible,theneedforusingtheFMEAasadisciplinedtechniquetoidentifyandhelpeliminatepotentialconcernisasimportantasever.Al

4、thoughresponsibilityforthe“preparation”oftheFMEAmust,ofnecessity,beassignedtoanindividual,FMEAinputshouldbeateameffort.Ateamofknowledgeableindividualsshouldbeassembled;e.g.,engineerswithexpertiseinDesign,Manufacturing,Assembly,Service,Quality,andReliability.FMEAImplementation2Oneofthemostimporta

5、ntfactorsforthesuccessfulimplementationofanFMEAprogramistimeliness.Itismeanttobea“before-the-event”action,notan“after-the-fact”exercise.Toachievethegreatestvalue,theFMEAmustbedonebeforeadesignorprocessfailuremodehasbeenunknowinglydesignedintotheproduct.UpfronttimespentindoingacomprehensiveFMEAwe

6、ll,whenproduct/processchangedcanbemosteasilyandinexpensivelyimplemented,willalleviatelatechangecrises.AnFMEAcanreduceoreliminatethechanceofimplementingacorrectivechangewhichcouldcreateanevenlargerconcern.Properlyapplied,itisaninteractiveprocesswhichisneverending.What’sProcessFMEA?AProcesspotenti

7、alFMEAisananalyticaltechniqueutilizedbyaManufacturingResponsibleEngineer/Teamasameanstoassurethat,totheextentpossible,potentialfailuremodesandtheirassociatedcause/mechanismshavebeenconsideredandaddressed.Initsmostrigorousfor

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