FMEA应用实例

潜在失效模式及后果分析(PROCESSFMEA)过程功能潜在的潜在的严重潜在的失效现行的Process失效模式失效后果度数起因/机理工艺控制Function采取的措施要求SODRequirements生锈外观不良51、未完全浸油2目视全检330rustAppearanceNGAnti-rustisnotenoughFullcheckbyeyes2、防锈油中有水分和杂质2建立防锈油更换标准书330theoilhaveH2OandchipWriteinworkinstructoraboutthechangeoilsheet10of10ActionTakenFMEA编号/FMEANO.：12575489PotentialfailuremodePotentialEffect(s)ofFailureSev责任及目标完成日期措施结果ActionresultsCurrentProcessControlsResponsibility&targetCompletiondateRPNOP120防锈Anti-rustRecommendedAction(s)建议的措施频度PotentialCause(s)Mechanism(s)ofFailureOccur不易探测度数Detec风险顺序数级别ClassRPN文件编号/FILENO.:M10-001-1.0富士和机械工业（昆山）有限公司潜在失效模式及后果分析(PROCESSFMEA)过程功能潜在的潜在的严重潜在的失效现行的Process失效模式失效后果度数起因/机理工艺控制Function采取的措施要求SODRequirements生锈外观不良51、未完全浸油2目视全检220rustAppearanceNGAnti-rustisnotfullFullcheckbyeyes2、防锈油中有水分和杂质2建立防锈油更换标准书330theoilhaveH2OandchipWriteinworkinstructoraboutchangeofoil1、螺纹孔里有残留物装配干涉51.清洗时间不足2清洗时间由M10设定并经试加工确认220threadholeshavedustAssemblyinterferencethetimeofwashingisn'tenoughM10setupthetimeofwashing,checkingbytrying2.清洗喷嘴未对齐2经试加工确认220washingnozzleisn'tawardtopartcheckingbytrying3.工件定位不准确2螺纹规全数检查550设定清洗治具03.3/1设定清洗治具，经试加工确认52220Orientationincorrectcheckfullpartsbythreadgagesetupthefixtureofwashingsetupthefixtureofwashing,checkingbytrying2、生锈外观不良5烘干的时间、温度不足2建立作业标准书220rustAppearanceNGthetimeofwashinganddryingisn'tenoughWriteinworkinstructorsheet9of10FMEA编号/FMEANO.：12575489建议的措施OP100防锈Anti-rustPotentialfailuremodePotentialEffect(s)ofFailureSevRPN级别ClassRPN频度CurrentProcessControls措施结果ActionresultsPotentialCause(s)Mechanism(s)ofFailureOccurRecommendedAction(s)OP110清洗，烘干washing,dryingResponsibility&targetCompletiondateActionTaken不易探测度数Detec风险顺序数责任及目标完成日期文件编号/FILENO.:M10-001-1.0富士和机械工业（昆山）有限公司潜在失效模式及后果分析(PROCESSFMEA)过程功能潜在的潜在的严重潜在的失效现行的Process失效模式失效后果度数起因/机理工艺控制Function采取的措施要求SODRequirements螺纹孔里有铁屑装配干涉51.清洗时间不足2清洗时间由M10设定并经试加工确认220thresdholeshavechipAssemblyinterferencethetimeofwashingisn'tenoughM10setupthetimeofwashing,checkingbytrying2.清洗喷嘴未对齐2经试加工确认220washingnozzleisn'tawardtopartcheckingbytrying3.工件定位不准确2螺纹规全数检查550设定清洗治具03.3/1设定清洗治具，经试加工确认52220Orientationincorrectcheckfullpartsbythreadgagesetupthefixtureofwashingsetupthefixtureofwashing,checkingbytryingOP90漏气排气不好7A治具密封不良2治具进行确认228漏气试验leaktestleakexhaustNGFixtureairproofNGCheckthefixture粗材不良31.F00粗材改善242CastingNGF00inprovecating2.对工件进行全检checkfullpartssheet8of10Responsibility&targetCompletiondateActionTaken不易探测度数Detec风险顺序数责任及目标完成日期RPN级别ClassRPN频度CurrentProcessControls措施结果ActionresultsPotentialCause(s)Mechanism(s)ofFailureOccurRecommendedAction(s)FMEA编号/FMEANO.：12575489建议的措施OP80清洗washingPotentialfailuremodePotentialEffect(s)ofFailureSev文件编号/FILENO.:M10-001-1.0富士和机械工业（昆山）有限公司潜在失效模式及后果分析(PROCESSFMEA)过程功能潜在的潜在的严重潜在的失效现行的Process失效模式失效后果度数起因/机理工艺控制Function采取的措施要求SODRequirements平行度不良装配干涉4F.S.不当，刀具太长，加工振刀31.试作前程式确认224ParallelismNGAssemblyinterferenceprogramF.S.wrong，toolistoolong,Shakinginmachiningchecktoolbeforetrying2.刀具设计确认checktooldesign加工角度不对装配干涉5治具角度不对2试作前治具角度确认经试做确认220AngelNGAssemblyinterferenceFixtureangelNGInspectfixtureandcheckbytrying螺纹不良装配干涉5丝攻寿命到2经M10试加工后设定刀具寿命220threadNGAssemblyNGtapwearawaytoooverset-uptoollifebyM10aftertrying球面轮廓度超差装配干涉,装配后漏气5AF.S.不当，刀具太长，加工振刀3试作前程式确认230AssemblyinterferenceandleakprogramF.S.wrong，toolistoolong,Shakinginmachiningchecktoolbeforetrying加工后外观偏装配干涉,漏气5前工程基准孔偏2前工程加严控制220首件确认换线确认主轴跳动0.02以下02‘8/13首件确认,建立换线标准书5115offsetbetweenholeandedgeofcastingAssemblyinterferenceleakholeoffsetinbeforeprocesscontrolinbeforeprocessCheckthefirstpiece&checkspindlepulsatebelow0.02Checkthefirstpiece&creatthestandardhandbooksheet7of10RecommendedAction(s)ActionTaken责任及目标完成日期Responsibility&targetCompletiondateFMEA编号/FMEANO.：12575489OP60沉孔Spotface频度CurrentProcessControlsRPNRPN风险顺序数建议的措施措施结果ActionresultsOP70车削球面,钻孔,攻牙turningballdrillingtapping不易探测度数DetecPotentialfailuremodePotentialEffect(s)ofFailureSev级别ClassPotentialCause(s)Mechanism(s)ofFailureOccur文件编号/FILENO.:M10-001-1.0富士和机械工业（昆山）有限公司潜在失效模式及后果分析(PROCESSFMEA)过程功能潜在的潜在的严重潜在的失效现行的Process失效模式失效后果度数起因/机理工艺控制Function采取的措施要求SODRequirementsOP50铣面,钻孔,攻牙M6螺纹孔残留铁屑装配干涉51.丝锥选择不当，排屑不顺畅4丝锥由生技经试做确认360选择合适的丝锥M1003'8/29经试加工后选用Titex螺旋丝锥52220FacemillingDrillingtappingM6threadhole'shavechipAssemblyinterferenceselectthetapunfiting,conveychipnosmoothlyM10selectthetapandcheckbytryingselectrigthtapforconveychipselecttheTitextapaftertrying2.程式F.S.不当3程式由M10设定并经由试加工确认345修改程式F.SM1003'8/29通过试加工调整F.S53115programF.S.wrongM10makeNCprogram,checkingbytryingadjusttheF.S.aftertrying3.加工后铁屑未吹净4目视全检8160吹净铁屑M1003'8/29使用小径气枪吹净铁屑，并设定标准作业书.OP80光源检查，OP110再次检查。52440blowthechipincompleteaftertappingFullcheckbyeyesblowthechipentirelyblowthechipwithsmallairgun,andwriteinworkinstructor,inspectionin0P80,OP110checkagainsheet6of10RPNRecommendedAction(s)Responsibility&targetCompletiondateActionTaken建议的措施FMEA编号/FMEANO.：12575489措施结果Actionresults频度级别ClassOccur责任及目标完成日期RPNPotentialCause(s)Mechanism(s)ofFailureCurrentProcessControls不易探测度数Detec风险顺序数PotentialfailuremodePotentialEffect(s)ofFailureSev文件编号/FILENO.:M10-001-1.0富士和机械工业（昆山）有限公司潜在失效模式及后果分析(PROCESSFMEA)过程功能潜在的潜在的严重潜在的失效现行的Process失效模式失效后果