10 Steps to Conduct a PFMEA(创建 FMEA 权威 步骤 )VIP免费

第1页共9页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共9页10StepstoConductaPFMEAStep1Reviewtheprocess—Useaprocessflowcharttoidentifyeachprocesscomponent.Step2Brainstormpotentialfailuremodes—Reviewexistingdocumentationanddataforclues.Step3Listpotentialeffectsoffailure—Theremaybemorethanoneforeachfailure.Step4AssignSeverityrankings—Basedontheseverityoftheconsequencesoffailure.Step5AssignOccurrencerankings—Basedonhowfrequentlythecauseofthefailureislikelytooccur.Step6AssignDetectionrankings—Basedonthechancesthefailurewillbedetectedpriortothecustomerfindingit.Step7CalculatetheRPN—SeverityXOccurrenceXDetection.Step8Developtheactionplan—Definewhowilldowhatbywhen.Step9Takeaction—ImplementtheimprovementsidentifiedbyyourPFMEAteam.第2页共9页第1页共9页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共9页Step10CalculatetheresultingRPN—Re-evaluateeachofthepotentialfailuresonceimprovementshavebeenmadeanddeterminetheimpactoftheimprovements.Step1:ReviewtheProcessReviewtheprocesscomponentsandtheintendedfunctionorfunctionsofthosecomponents.Useofadetailedflowchartoftheprocessoratraveler(orrouter)isagoodstartingpointforreviewingtheprocess.ThereareseveralreasonsforreviewingtheprocessFirst,thereviewhelpsassurethatallteammembersarefamiliarwiththeprocess.Thisisespeciallyimportantifyouhaveteammemberswhodonotworkontheprocessonadailybasis.Thesecondreasonforreviewingtheprocessistoidentifyeachofthemaincomponentsoftheprocessanddeterminethefunctionorfunctionsofeachofthosecomponents.Finally,thisreviewstepwillhelpassurethatyouarestudyingallcomponentsoftheprocesswiththePFMEA.Usingtheprocessflowchart,labeleachcomponentwithasequentialreferencenumber.ThesereferencenumberswillbeusedthroughouttheFMEAprocess.Themarked-upflowchartwillgiveyouapowerfulvisualtorefertothroughoutthePFMEA.Withtheprocessflowchartinhand,thePFMEAteammembersshouldfamiliarizethemselveswiththeprocessbyphysicallywalkingthroughtheprocess.Thisisthetimetoassureeveryoneontheteamunderstandsthebasicprocessflowandtheworkingsoftheprocesscomponents.Foreachcomponent,listitsintendedfunctionorfunctions.Thefunctionofthecomponentisthevalue-addingrolethatcomponentperformsorprovides.Manycomponentshavemorethanonefunction.第3页共9页第2页共9页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第3页共9页Step2:BrainstormPotentialFailureModesInStep2,considerthepotentialfailuremodesforeachcomponentanditscorrespondingfunction.Apotentialfailuremoderepresentsanymannerinwhichthecomponentorprocessstepcouldfailtoperformitsintendedfunctionorfunctions.UsingthelistofcomponentsandrelatedfunctionsgeneratedinStep1,asateam,brainstormthepotentialfailuremodesforeachfunction.Don’ttakeshortcutshere;thisisthetimetobethorough.Prepareforthebrainstormingsession.Beforeyoubeginthebrainstormingsession,reviewdocumentationforcluesaboutpotentialfailuremodes.Step3:ListPotentialEffectsofFailureDeterminetheeffectsassociatedwitheachfailuremode.Theeffectisrelateddirectlytotheabilityofthatspecificcomponenttoperformitsintendedfunction.Aneffectistheimpactafailurecouldmakeifitoccurred.Somefailureswillhaveaneffectonthecustomersandothersontheenvironment,thefacility,andeventheprocessitself.Aswithfailuremodes,usedescriptiveanddetailedtermstodefineeffects.Theeffectshouldbestatedintermsmeaningfultop...