德国汽车工业质量标准-vda6Part5(ProductAudit)

3VDAQualityManagementintheAutomotiveIndustry1stEdition1998ProductAuditPart56ProductAudit1stEdition1998VerbandderAutomobilindustriee.V.(VDA)2ISSN0943-9412Copyright1998byVerbandderAutomobilindustriee.V.(VDA)(AssociationoftheGermanAutomotiveIndustry)QualityManagementCenter(QMC)D-60325FrankfurtamMain,Lindenstraße5Overallproduction:DruckereiHenrichGmbHD-60528FrankfurtamMain,SchwanheimerStraße110Printedonchlorine-freebleachedpaper.3LiabilityexclusionTheVDAvolumesareguidelinesavailableforanyonetouse.Itistheres-ponsibilityofthepersonusingtheguidelinestoensureit‘scorrectuseineachspecificcase.TheVDAvolumestakeintoaccountstateofthearttechnology,currentatthetimeofissue.ByusingtheVDAguideline,nobodyisrelievedoftheresponsibilityfortheirownactions.Eachpersonacts,inthisrespect,attheirownrisk.LiabilitybyVDA,andthosepersonsinvolvedinissuingVDAguidelines,isherebyexcluded.IfduringtheuseofVDAguidelines,errorsorthepossibilityofmisinterpre-tationarefound,itisrequestedthatthesebenotifiedtotheVDAimme-diately,sothatanypossiblefaultscanbecorrected.ReferencedstandardsTheextractsfromstandardsidentifiedwiththeirDINnumberandissuedatearereproducedwiththepermissionoftheDINDeutschesInstitutfürNormunge.V.(GermanInstituteforStandardization).Theversionwiththelatestissuedateisdefinitivefortheuseofthestandard,whichcanbeattainedfromthepublishersBeuthVerlagGmbH,10772Berlin.CopyrightThepublication,includingallit‘sparts,isprotectedbycopyright.Anyuseoutsideofthenarrowboundariesofcopyrightlaw,withoutthewrittenpermissionoftheVDA,isunauthorizedandillegal.Thisappliesinparticulartocopying,translation,microfilmingandthesavingandprocessinginelectronicsystems.45ForewordWithrespecttotechnicalandeconomicprogress,qualityassurancedeter-minesthefutureoftheautomotiveandsupplierindustry.Theproductionprocessconsistingofmanyindividualprocesseshastotakeintoaccountrationalandeconomicaspectsinordertoachieveanoptimuminquality,timeandcosts.Toensurethis,theVDAhasissuedthefollowingguidelinesforthequalitystandardoftheautomotiveindustry:QUALITYSTANDARDOFTHEGERMANAUTOMOTIVEINDUSTRY(VDA6)VDA6VDA6Part1QualitySystemAuditVDA6Part2QualitySystemAuditServicesQualityAuditsVDA6Part3ProcessAuditBasicsVDA6Part5ProductAuditVDA6Part6ProductAuditServicesTheproductauditshalldemonstratethequalityniveauofinternally/exter-nallymanufacturedproductsinaprocesschain.Withknowledgeofthequalityniveau,shortandlongtermconclusionsregardingtheproductionprocessandifnecessary,thequalitysystemarepossible.Theinformationgainedfromproductauditspromotethecontinuosprocessofqualityimprovement,tothebenefitofcustomersandsuppliers.Apracticalrepresentationoftheproductauditwaschosen,tomakethecontentofthepublicationeasilyunderstandable.Guidelinesareprovidedfortheplannerofproductauditsandproductauditors.Thesubject„ProductAudit„isthenroundedoffwithactualexamplesfrompractice.6Wethankthefollowinginvolvedcompaniesandtheiremployeesfortheirinputinthepreparationofthispublication:AktiengesellschaftKühnle,Kopp&Kausch,KirchheimbolandenContinentalAG,HannoverFichtel&SachsAG,SchweinfurtFord-WerkeAG,CologneGLYCO-METALL-WERKEGlycoB.V&Co.KG,WiesbadenDaimler-BenzAG,HamburgWorksTRWDeutschlandGmbH,MotorComponents,BarsinghausenTHYSSENKRUPPSTAHLAG,DuisburgVolkswagenAG,WolfsburgZDH-ZERTe.V.,Bonn.andhope,thatthispublicationfindssuccessfulapplication.Frankfurt/Main,April1998VERBANDDERAUTOMOBILINDUSTRIEE.V.(VDA)7ContentPageForeword51Introduction112DefinitionsandPurposeofaProductAudit132.1Definitions132.1.1QualityAudit(according.toISO8402:1994)132.1.2Product(accordingtoISO8402:1994)132.1.3ProductAudit142.2Purpose153ProductAuditatCarManufacturersandSuppliers163.1DistinguishingaProductAuditfromotherAuditTypes163.2ProcessofaProductAudit184PreparationandPlanningofProductAudits194.1PreconditionsandResponsibilities194.3ReferenceDocumentation204.4Inspection,MeasuringandTestMethodsandEquipment214.5AuditorQualification215ProductAuditQuestionnaire225.1General225.2QuestionstothePhysicalExaminationofaProduct225.2.1ReviewofallDocuments225.2.2RandomSampling226PerformingaProductAudit236.1Responsibility236.2Process236.3Reporting(Documenting)247AnalysisoftheDataandInvestigationofCausesofNonconformities258EvaluationoftheProductAuditResults269ProductAuditReport27810CorrectiveActionsResultingfromtheProductionAudit2810.1General2810.1.1CorrectiveActionsforMajorNonconformities2810.1.2CorrectiveActionsforMinorNonconformities2810.2MonitoringofCorrectiveActions2811CaseExamples2811.1CaseExample–SelectorShaft-Müller+Co.2911.2CaseExampleInputMaterial(Sheetmetal)-ThyssenStahlAG3511.3CaseExampleLaserandMashSeamWeldedTailoredBlanks-ThyssenStahlAG11.3.1SelectingSamplesforInspection4011.3.2ScopeofInspection4011.3.3ProcessandSequenceofOperations4011.3.4ProductAuditReport4111.3.5ProcedureforHandlingNonconformities4111.3.6DispatchAudit4211.3.7Responsibility4211.4CaseExampleBearingBush-AGKühnle,Kopp&Kausch4511.4.1ExplanationSystematicQualityEvaluationProductionandPurchasing(SQPP)4511.4.2CodeNumberSystemforSQPP4711.4.3ProcedureusingBearingBushasanExample4911.5CaseExampleValves-TRWDeut