質(zhì)量功能展開QFD

4質(zhì)量功能展開

6σ12質(zhì)量功能展開將客戶的要求及愿望(即客戶的心聲)轉(zhuǎn)變?yōu)楫a(chǎn)品/服務(wù)的要求.識(shí)別并控制主要的制造過程參數(shù).產(chǎn)品特性、過程參數(shù)及控制變量的文檔關(guān)系。3為什么需要使用QFD?更短的開發(fā)時(shí)間更少的工程更改提高客戶的滿意度更好的過程理解，取得更佳的執(zhí)行成效降低制造成本將最好的產(chǎn)品及服務(wù)提供與客戶改善組織內(nèi)溝通及分配任務(wù)執(zhí)行客戶要求及重

要度保證措施關(guān)系矩陣市場(chǎng)競爭性評(píng)估措施重要度相互矩陣45質(zhì)量功能展開的四大主要階段質(zhì)量屋階段

1:

產(chǎn)品規(guī)劃質(zhì)量屋階段

2:

零件配置質(zhì)量屋階段

3:

過程計(jì)劃質(zhì)量屋階段

4:

工藝/質(zhì)量控制矩陣產(chǎn)品及過程的規(guī)劃階段執(zhí)行成效測(cè)量CustWants質(zhì)量屋1產(chǎn)品特性PerfMeas質(zhì)量屋2控制方法ProcChar質(zhì)量屋4過程特性ProdChar質(zhì)量屋3客戶的心聲7質(zhì)量功能展開質(zhì)量屋1產(chǎn)品規(guī)劃執(zhí)行成效測(cè)量客戶需求關(guān)系矩陣8客戶需求–如掛墻墊客戶需求：由客戶確定的一系列產(chǎn)品及服務(wù)的特性.如：沒有任何的污點(diǎn)/油漬；適合一般市場(chǎng)要求；獨(dú)立式掛靠；穩(wěn)固于墻上；易于從墻上取下；容易打開；有防護(hù)；房屋1–掛墻墊例子PerformanceMeasures各項(xiàng)需求的重要度沒有任何的污點(diǎn)/油漬適合一般市場(chǎng)要求獨(dú)立式掛靠穩(wěn)固于墻上易于從墻上取下容易打開有防護(hù)客戶需求10對(duì)各需求項(xiàng)進(jìn)行重要度評(píng)分據(jù)客戶對(duì)各項(xiàng)要求的重要性，進(jìn)行100分值范圍內(nèi)評(píng)分質(zhì)量屋1–掛墻墊執(zhí)行成效測(cè)量需求項(xiàng)的重要度評(píng)分沒有任何的污點(diǎn)/油漬15適合一般市場(chǎng)要求25獨(dú)立式掛靠10穩(wěn)固于墻上20易于從墻上取下15容易打開5有防護(hù)10客戶需求12執(zhí)行成效測(cè)量這是一種對(duì)客戶要求的產(chǎn)品執(zhí)行情況的技術(shù)評(píng)估，進(jìn)行測(cè)量及控制，并不是實(shí)際的測(cè)試。掛墻墊的執(zhí)行成效測(cè)量客戶要求沒有任何的污點(diǎn)/油漬適合一般市場(chǎng)要求獨(dú)立式掛靠；穩(wěn)固于墻上；執(zhí)行成效測(cè)量以12類筆書寫，后檢查污漬情況以12類筆書寫，后檢查污漬情況檢測(cè)靠背板的硬度檢測(cè)穩(wěn)掛于墻上的時(shí)間及其粘住墻上的程度13質(zhì)量屋1–掛墻墊執(zhí)行成效測(cè)量Importance以12類筆書寫，后檢查污漬情況檢測(cè)靠背板的硬度包裝測(cè)試易掉落程度檢測(cè)穩(wěn)掛于墻上的時(shí)間粘住墻上的程度沒有任何的污點(diǎn)/油漬15適合一般市場(chǎng)要求25獨(dú)立式掛靠10穩(wěn)固于墻上20易于從墻上取下15容易打開5有防護(hù)10客戶要求15將客戶要求與執(zhí)行成效的測(cè)量結(jié)果聯(lián)系起來執(zhí)行成效的測(cè)量對(duì)客戶于各個(gè)要求項(xiàng)的滿意度的測(cè)算度如何？用如下的等級(jí)描述填寫矩陣。:1–星期,3–中等的,9–強(qiáng)度大,空白–即指沒有任何關(guān)質(zhì)量屋1–掛墻墊執(zhí)行成效測(cè)量Importance以12類筆書寫，后檢查污漬情況檢測(cè)靠背板的硬度包裝測(cè)試易掉落程度檢測(cè)穩(wěn)掛于墻上的時(shí)間粘住墻上的程度沒有任何的污點(diǎn)/油漬153適合一般市場(chǎng)要求259獨(dú)立式掛靠109穩(wěn)固于墻上20393易于從墻上取下159容易打開59有防護(hù)101客戶要求17WeightedImportanceWeightedimportanceisacalculationusedtoprioritizetheinformationinaQFDmatrix=thesumoftheproductsoftheimportanceandrelationshiplevelsforeachcolumnintheQFDmatrix.InHouse1,theweightedimportancedetermineswhichPerformanceMeasuresarethegreatestpredictorsofcustomersatisfaction.WeightedImportanceforHouse1DemandedQualities(15x3)+(25x9)=27019TheRoofoftheHouseComparestheeffectthatachangeinonePerformanceMeasurewouldhaveontheotherPerformanceMeasures.Doesnotinteractwithotherportionsofthehouse.Usesascaleof:–

strongpositive,positive,none,negative,andstrongnegative.RoofoftheHouse(House1)++strongpositive+positive-negative--strongnegative---Improvingpeelenergymayhaveastrongnegativeimpactonthetimethesheetsstickonawall.Desirable

to

increaseNopreferenceDesirable

to

decreaseDirection

for

improvement21ChartA-1TheQualityTableCustomerDemands(What)QualityCharacteristics(How)ANPlanPBCDTotalTotal%CompanynowCompetitorxCompetitoryPlanRateofimportanceCompanynowCompetitorxCompetitoryPlanRatioofimprovementSalespointAbsoluteweightDemandedWeightCorrelations:9=strongcorrelation3=somecorrelation1=possiblecorrelationB=Salespoints=1.5,1.2,or1D=AxBxCPN42426920744

396

13219171EasytoholdDoesnotSmearPointlastsDoesnotroll1054653392191122941301999”53”pgs3g70%’55’pgs2g80%”42”.5p4g60%5.”56”pgs2g80%34334113144545511.24.823545351.251.59.444333341.33141921.2100LengthTimebetweensharpeningLeaddustgeneratedHexagonality22QFDHouse

2ProductQualificationProductCharacteristicsPerformanceMeasuresRelationshipMatrix23ProductCharacteristicsAttributesthatareobservableand/ormeasurableonthefinal

product.Examples:

thickness,color,weight,size,

rawmaterial

attributes24ProductCharacteristicsWhataretheProductCharacteristicsof

theEaselPad?Howmuchwill

changes

inthose

characteristics

affectthe

Performance

Measures?Usea

scaleof

1forweak,

3formediumand9

for

strongtoratetheeffects.House

2-

Product

QualificationMatrixPerformanceMeasuresProductCharacteristicsStrong9Medium3Weak1None0PerformanceMeasures26QFDHouse

3ProcessPlanningProcessCharacteristicsProductCharacteristicsRelationshipMatrix27ProcessCharacteristicsStages

intheprocessthataffectthequality,composition,

andcharacteristicsof

theproduct.Observablewhile

the

processisrunning.Examples:Adhesivecoatingmethod,coatingthickness,ovenor

web

temperature,viscosity,melttemperatureUnwindPrintedPaperReleaseCoatingDryingOvenPrimerCoatingDryingOvenAdhesiveCoatingDryingOvenJumboWind-up

ReleaseCoatPrimerAdhesiveCoatedJumboSheetingCuttingPaddingBackcardApplicationPackagingBacksheetPaddingCompoundBackcardEasel

Pad

Process

Flow2829ProcessCharacteristicsWhat

are

thestages

in

the

manufacturingprocessfor

Easel

Pads?Whichproduct

characteristicsare

impactedbyeach

stage?Use

alevelof

1,3,

9

to

ratethe

impactProductCharacteristicsHouse3

-

ProcessPlanning

MatrixProcessCharacteristicsStrong9Medium3Weak1None0ProductCharacteristics31QFD

House

4ProcessControlPlanningControl

MethodsProcessCharacteristicsRelationshipMatrix32Control

MethodsThevariablesin

a

processstepthat

canbeadjusted.Example: line

speed,

pump

speed,

oventemperature,

nip

pressure.33Control

MethodsIn

which

keystageof

the

process

wouldimprovement

effortshave

thegreatestimpacton

productquality?What

adjustments

are

youabletomakein

this

stage?What

is

theimpactof

each

adjustmenton

the

ProductCharacteristics?ProcessCharacteristicsStrong9Medium3Weak1None0House4

-

ProcessControl

PlanningControl

MethodsProcessCharacteristicsTracing

theProcess

backto

the

Customer36Tips

for

QFDWatchand

visit

the

customer

of

theprocess

-t