六西格玛管理的应用(英文版).ppt

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1、NMemberoftheBekaertGroupWhatisit?Howtoimplementit?ConditionsforsuccessSixSigmaFRANCESchneiderElectric21thJanuary2002ContentsWhatisSixSigma?AsmeasureforprocesscapabilityAmethodologyHowtoimplementSixSigma?Conditionsforsuccess1WhatisSixSigma?PROCESSinputresultExellentresultsrequireexce

2、llentprocessesDeliver(nearly)alwaysthedesiredresultsReducevariabilityAmbition:6SigmaProcessCapability(<3.4defectspm)SixSigmaasmeasureforprocesscapabilityDefectsandtheHiddenFactoryManufacturingVariationCausesA"HiddenFactory"IncreasedCost-LostCapacityYieldAfterInspectionorTestEachde

3、fectmustbedetected,repairedandplacedbackintheprocess.Eachdefectcoststimeandmoney.ScrapReworkHiddenFactoryNOTOKOperationInputsInspectFirstTimeYieldOKTime,cost,people90%CustomerQualityToincreaseaprocessperformance,youhavetodecreasevariation.ImportanceofReducingVariationLessvariation

4、providesGreaterpredictabilityintheprocessLesswasteandrework,whichlowerscostsProductsandservicesthatperformbetterandlastlongerHappiercustomersLSLUSLDefectsProcessCapabilityInadequateDesignMarginInadequateProcessCapabilitySupplierVariationInadequateMeasurementCapabilityaveragess“Varia

5、tion”and“ProcessCapability”23456308,53766,8076,2102333.4sPPMProcessCapabilityDefectsperMillionOppty.6Sigma???%Non-Defective69.1%93.32%99.379%99.9767%99.99966%66Cp=2Cpk=1,51,56n=66andCp,CpkWhyppm?*1,5shiftApproachClassicalNew,410,3320,663141,334,51,5Numberofsigmainhalfthetoler

6、anceintervalCp561,662Cpk*_0,160,50,8311,161,5Ppm*__66.8106.2071.3502333,4Costofquality(%)__25%15%10%7,5%5%Ifweaccept99.9%good,then...1hnondrinkablewatereachmonth500«failed»surgerieseachweekinFranceInFrance:2babiesfallingoffthe«labour»tableeachday1000lostlettersperhour15000chequeonth

7、ewrongaccounteachdayCompaniesinvolvedinSixSigmatoday:Someresultsthatwerepublishedinthepress:Dupont:benefitsexceed$150million/year(DowJonesBusinessNews-February2,2000).Dow:Savingsofabout$250.000perproject.Annualsavings$1billion(Chemicalweekmagazine-March1,2000).Black&Decker:Expectsea

8、rningspersharegrowt