质量功能展开QFD1261753.ppt

4质量功能展开,6s,质量功能展开,将客户的要求及愿望(即客户的心声)转变为产品/服务的要求.识别并控制主要的制造过程参数.产品特性、过程参数及控制变量的文档关系。,为什么需要使用QFD?,更短的开发时间更少的工程更改提高客户的满意度更好的过程理解，取得更佳的执行成效降低制造成本将最好的产品及服务提供与客户改善组织内沟通及分配任务执行,客户要求及重要度,保证措施,关系矩阵,市场竞争性评估,措施重要度,相互矩阵,质量功能展开的四大主要阶段,质量屋阶段1:产品规划质量屋阶段2:零件配置质量屋阶段3:过程计划质量屋阶段4:工艺/质量控制矩阵,产品及过程的规划阶段,执行成效测量,CustWants,质量屋1,质量屋2,PerfMeas,产品特性,质量屋4,控制方法,ProcChar,质量屋3,ProdChar,过程特性,客户的心声,质量功能展开质量屋1,产品规划,执行成效测量,客户需求,关系矩阵,客户需求如挂墙垫,如：没有任何的污点/油渍；适合一般市场要求；独立式挂靠；稳固于墙上；易于从墙上取下；容易打开；有防护；,客户需求：由客户确定的一系列产品及服务的特性.,房屋1挂墙垫例子,PerformanceMeasures,各项需求的重要度,没有任何的污点/油渍,适合一般市场要求,独立式挂靠,稳固于墙上,易于从墙上取下,容易打开,有防护,客户需求,对各需求项进行重要度评分,据客户对各项要求的重要性，进行100分值范围内评分,质量屋1挂墙垫,执行成效测量,需求项的重要度评分,没有任何的污点/油渍,15,适合一般市场要求,25,独立式挂靠,10,稳固于墙上,20,易于从墙上取下,15,容易打开,5,有防护,10,客户需求,执行成效测量,这是一种对客户要求的产品执行情况的技术评估，进行测量及控制，并不是实际的测试。,挂墙垫的执行成效测量,没有任何的污点/油渍适合一般市场要求独立式挂靠；稳固于墙上；,以12类笔书写，后检查污渍情况以12类笔书写，后检查污渍情况检测靠背板的硬度检测稳挂于墙上的时间及其粘住墙上的程度,客户要求,执行成效测量,质量屋1挂墙垫,执行成效测量,Importance,以12类笔书写，后检查污渍情况,检测靠背板的硬度,包装测试,易掉落程度,检测稳挂于墙上的时间,粘住墙上的程度,没有任何的污点/油渍,15,适合一般市场要求,25,独立式挂靠,10,稳固于墙上,20,易于从墙上取下,15,容易打开,5,有防护,10,客户要求,将客户要求与执行成效的测量结果联系起来,执行成效的测量对客户于各个要求项的满意度的测算度如何？用如下的等级描述填写矩阵。:1星期,3中等的,9强度大,空白即指没有任何关,质量屋1挂墙垫,执行成效测量,Importance,以12类笔书写，后检查污渍情况,检测靠背板的硬度,包装测试,易掉落程度,检测稳挂于墙上的时间,粘住墙上的程度,没有任何的污点/油渍,153,适合一般市场要求,259,独立式挂靠,109,稳固于墙上,20393,易于从墙上取下,159,容易打开,59,有防护,101,客户要求,WeightedImportance,WeightedimportanceisacalculationusedtoprioritizetheinformationinaQFDmatrix=thesumoftheproductsoftheimportanceandrelationshiplevelsforeachcolumnintheQFDmatrix.InHouse1,theweightedimportancedetermineswhichPerformanceMeasuresarethegreatestpredictorsofcustomersatisfaction.,WeightedImportanceforHouse1,DemandedQualities,(15x3)+(25x9)=270,TheRoofoftheHouse,ComparestheeffectthatachangeinonePerformanceMeasurewouldhaveontheotherPerformanceMeasures.Doesnotinteractwithotherportionsofthehouse.Usesascaleof:strongpositive,positive,none,negative,andstrongnegative.,RoofoftheHouse(House1),+strongpositive+positive-negative-strongnegative,Improvingpeelenergymayhaveastrongnegativeimpactonthetimethesheetsstickonawall.,ChartA-1TheQualityTable,CustomerDemands(What),QualityCharacteristics(How),ANPlanPBCD,Total,Total,%,Companynow,Competitorx,Competitory,Plan,Rateofimportance,Companynow,Competitorx,Competitory,Plan,Ratioofimprovement,Salespoint,Absoluteweight,DemandedWeight,Correlations:9=strongcorrelation3=somecorrelation,1=possiblecorrelation,Salespoints=1.5,1.2,or1D=AxBxC,B=,PN,42,42,69,207,44,396,132,19,171,Easytohold,DoesnotSmear,Pointlasts,Doesnotroll,10546533921911229413019995”3pgs3g70%55pgs2g80%,4”2.5p4g60%5.5”6pgs2g80%,34334113144545511.24.823545351.251.59.444333341.331419,21.2100,Length,Timebetweensharpening,Leaddustgenerated,Hexagonality,QFDHouse2,ProductQualification,ProductCharacteristics,PerformanceMeasures,RelationshipMatrix,ProductCharacteristics,Attributesthatareobservableand/ormeasurableonthefinalproduct.Examples:thickness,color,weight,size,rawmaterialattributes,ProductCharacteristics,WhataretheProductCharacteristicsoftheEaselPad?HowmuchwillchangesinthosecharacteristicsaffectthePerformanceMeasures?Useascaleof1forweak,3formediumand9forstrongtoratetheeffects.,House2-ProductQualificationMatrix,PerformanceMeasures,ProductCharacteristics,PerformanceMeasures,QFDHouse3,ProcessPlanning,ProcessCharacteristics,ProductCharacteristics,RelationshipMatrix,ProcessCharacteristics,Stagesintheprocessthataffectthequality,composition,andcharacteristicsoftheproduct.Observablewhiletheprocessisrunning.Examples:Adhesivecoatingmethod,coatingthickness,ovenorwebtemperature,viscosity,melttemperature,Unwind,PrintedPaper,ReleaseCoating,DryingOven,PrimerCoating,DryingOven,AdhesiveCoating,DryingOven,JumboWind-up,ReleaseCoat,Primer,Adhesive,CoatedJumbo,Sheeting,Cutting,Padding,BackcardApplication,Packaging,Backsheet,PaddingCompound,Backcard,EaselPadProcessFlow,ProcessCharacteristics,WhatarethestagesinthemanufacturingprocessforEaselPads?Whichproductcharacteristicsareimpactedbyeachstage?Usealevelof1,3,9toratetheimpact,House3-ProcessPlanningMatrix,ProductCharacteristics,ProcessCharacteristics,ProductCharacteristics,QFDHouse4,ProcessControlPlanning,ControlMethods,ProcessCharacteristics,RelationshipMatrix,ControlMethods,Thevariablesinaprocessstepthatcanbeadjusted.Example:linespeed,pumpspeed,oventemperature,nippressure.,ControlMethods,Inwhichkeystageoftheprocesswouldimprovementeffortshavethegreatestimpactonproductquality?Whatadjustmentsareyouabletomakeinthisstage?WhatistheimpactofeachadjustmentontheProductCharacteristics?,ProcessCharacteristics,ControlMethods,House4-ProcessControlPlanning,ProcessCharacteristics,TracingtheProcessbacktotheCustomer,TipsforQFD,Watchandvisitthecustomeroftheprocess-therearebenefitstoobservingtheirproductneedsintheirsettingSometimesthecustomersdonotknowwhattheyneed-Findout!ThetimeusedtoimplementQFDisminorcomparedtothetimespentifitisnotusedQF