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IntroductiontoFMEAVIP免费

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SECTIONONEIntroductionToFAILUREMODEEFFECTS&ANALYSISFMEA1.0Definition,Purpose,andPracticesFMEA:ASYSTEMIZEDGROUPOFACTIVITIESDESIGNEDTO1.RECOGNIZEandEVALUATEthePOTENTIALFAILUREofaPRODUCT/PROCESSanditsEFFECTS2.IDENTIFYACTIONSWHICHCOULDELIMINATEorREDUCEtheCHANCEofPOTENTIALFAILUREOCCURRING3.DOCUMENTthePROCESS1.1DESIGNFMEA(DFMEA)PROCESSFMEA(PFMEA)AREANALYTICALTECHNIQUESUTILIZEDBYDESIGNRESPONSIBLEENGINEER/TEAMORMANUFACTURINGRESPONSIBLEENGINEER/TEAMTHESETOOLSAREUSEDTOASSURETHATPOTENTIALPRODUCTFAILUREMODESAndTHEIRASSOCIATEDCAUSESHAVEBEENCONSIDEREDandADDRESSEDINTHEDESIGNORMANAUFACTURINGPROCESS1.2DFMEASUPPORTSDESIGNPROCESSinREDUCINGRISKofFAILURESbyAIDINGINTHEOBJECTIVEEVALUATIONOFDESIGNREQUIREMENTSANDDESIGNALTERNATIVESAIDINGINTHEINITIALDESIGNFORMANUFACTURINGANDASSEMBLYINCREASINGTHEPROBABILITYTHATPOTENTIALFAILUREMODESANDTHEIREFFECTSONSYSTEMSANDPRODUCTOPERATIONHAVEBEENCONSIDEREDINTHEDESIGN&DEVELOPMENTPROCESSPROVIDINGADDITIONALINFORMATIONTOAIDINTHEPLANNINGOFEFFICIENTDESIGNTESTINGANDPRODUCTDEVELOPMENTPROGRAMS1.3DFMEAALSOSUPPORTSDESIGNPROCESSByDEVELOPINGALISTOFPOTENTIALFAILUREMODESRANKEDACCORDINGTOTHEIREFFECTONTHE“CUSTOMER,”THUSESTABLISHINGAPRIORITYSYSTEMFORDESIGNIMPROVEMENTSANDDEVELOPMENTTESTINGPROVIDINGANOPENISSUEFORMATFORRECOMMENDINGANDTRACKINGRISKREDUCINGACTIONSPROVIDINGFUTUREREFERENCETOAIDINANALYZINGFIELDCONCERNS,EVALUATINGDESIGNCHANGESANDDEVELOPINGADVANCEDDESIGNS1.4PFMEATHEPROCESSFMEAIDENTIFIESPOTENTIALPRODUCTRELATEDPROCESSFAILUREMODESASSESSESTHEPOTENTIALCUSTOMEREFFECTSOFTHEFAILURESIDENTIFIESTHEPOTENTIALMANUFACTURINGORASSEMBLYPROCESSCAUSESANDIDENTIFIESPROCESSVARIABLESONWHICHTOFOCUSCONTROLSFOROCCURRENCEREDUCTIONORDETECTIONOFTHEFAILURECONDITIONSDEVELOPSARANKEDLISTOFPOTENTIALFAILUREMODES,THUSESTABLISHINGAPRIORITYSYSTEMFORCORRECTIVEACTIONCONSIDERATIONSDOCUMENTSTHERESULTSOFTHEMANUFACTURINGORASSEMBLYPROCESS1.5FMEAAPPLICATIONSINMANUFACTURINGSETTINGSDFMEASHOULDBEINITIATEDBEFOREORATDESIGNCONCEPTFINALIZATIONSHOULDBECONTINUALLYUPDATEDASCHANGESOCCURORADDITIONALINFORMATIONISOBTAINEDTHROUGHOUTTHEPHASESOFPRODUCTDEVELOPMENTSHOULDBEFUNDAMENTALLYCOMPLETEDBEFORETHEDRAWINGSARERELEASEDFORTOOLING,OROTHERMANUFACTURINGNEEDSADDRESSESTHEDESIGNINTENTANDASSUMESTHEDESIGNWILLBEMANUFACTUREDANDASSEMBLEDTOTHISINTENTDOESNOTRELYONPROCESSCONTROLSTOOVERCOMEPOTENTIALWEAKNESSESINTHEDESIGN,BUTITDOESTAKETHETECHNICALANDPHYSICALLIMITATIONSOFAMANUFACTURINGORASSEMBLYPROCESSINTOCONSIDERATION1.6FMEAAPPLICATIONSINMANUFACTURINGSETTINGSPFMEASHOULDTAKEINTOACCOUNTALLMANUFACTURINGOPERATIONS,FROMINDIVIDUALCOMPONENTSTOASSEMBLIESDOESNOTRELYONPRODUCTDESIGNCHANGESTOOVERCOMEWEAKNESSESINTHEPROCESSDOESTAKEINTOCONSIDERATIONAPRODUCT’SDESIGNCHARACTERISTICSRELATIVETOTHEPLANNEDMANUFACTURINGORASSEMBLYPROCESSASSURESTHAT,TOTHEEXTENTPOSSIBLE,THERESULTINGPRODUCTMEETSCUSTOMERNEEDSANDEXPECTATIONS1.7KEYRESOURCESNECESSARYTOCONDUCTSUCCESSFULFMEAPROGRAMSCOMMITMENTOFTOPMANAGEMENTKNOWLEDGEABLEINDIVIDUALS,I.E.EXPERTISEIN:DESIGNMANUFACTURINGASSEMBLYSERVICEQUALITYRELIABILITYINDIVIDUALSATTENTIVETOFMEATIMELINESS,I.E.ACHIEVEGREATESTVALUE:BEFOREADESIGNORPROCESSFAILUREMODEHASBEENUNKNOWINGLYDESIGNEDINTOTHEPRODUCTPEOPLERESOURCESMAYBEINTERNALOREXTERNALTOTHEBUSINESS,ORACOMBINATIONTHEREOF1.8FMEAADVANTAGES(ANDLIMITATIONS)ADVANTAGES:ENHANCEDESIGNANDMANUFACTURINGEFFICIENCIESALLEVIATELATECHANGECRISESMINIMIZEEXPOSURE...

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IntroductiontoFMEA

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