SixSigma Training Book(ppt66) .pptx
- 文档编号:18684582
- 上传时间:2023-09-08
- 格式:PPTX
- 页数:66
- 大小:917.60KB
SixSigma Training Book(ppt66) .pptx
《SixSigma Training Book(ppt66) .pptx》由会员分享,可在线阅读,更多相关《SixSigma Training Book(ppt66) .pptx(66页珍藏版)》请在冰点文库上搜索。
6推行教材Six-SigmaTrainingBookSix-SigmaDec18,20011BPTLConfidential6推行教材數据分布2BPTLConfidential6推行教材NormalExponentialWeibullLognormaltc2fContinuousDistributionsSamplingDistributions數据分布3BPTLConfidential6推行教材Themostwidelyusedmodelforthedistributionofcontinuousrandomvariable.Arisesinthestudyofnumerousphysicalphenomena,suchasthevelocityofmolecules.正態分布正態分布PlotisknownasProbabilityDensityFunctionofX4BPTLConfidentialxe21xf2x216推行教材Manynaturalphenomenaandman-madeprocessesareobservedtohavenormaldistributions,orcanbecloselyrepresentedasnormallydistributed.Forexample,thelengthofamachinedpartisobservedtovaryaboutitsmeandueto:
temperaturedrift,humiditychange,vibrations,cuttinganglevariations,cuttingtoolwear,bearingwear,rotationalspeedvariations,fixturingvariations,rawmaterialchangesandcontaminationlevelchangesIfthesesourcesofvariationaresmall,independentandequallylikelytobepositiveornegative,thelengthwillcloselyapproximateanormaldistribution.正態分布正態分布5BPTLConfidential6推行教材FirstintroducedbyFrenchmathematicianAbrahamDeMoivrein1733.Madefamousin1809byGermanmathematicianK.F.Gausswhenhealsodevelopedanormaldistributionindependentlyanduseditinhisstudyofastronomy.Asaresult,itisalsoknownastheGaussiandistribution.Duringmidtolatenineteenthcentury,manystatisticiansbelievedthatitwas“normal”formostwell-behaveddatatofollowthiscurve.正態分布正態分布-歷程表歷程表KarlFriedrichGauss6BPTLConfidential6推行教材正態分布易于理解,具有特性,統計學提供了許多基于正態分布的強有力的分析方法來幫助人們做決定.因此,我們通常會試圖用正態分布去近似模擬其它分布(如可能)或轉化數据以“使”它遵從正態分布.它是分析過程能力的首選分布形式.正態分布正態分布7BPTLConfidential6推行教材Anormaldistributioncanbecompletelydescribedbyknowingonlythe:
Mean(m)Variance(s2)正態分布的一些特性正態分布的一些特性DistributionOneDistributionTwoDistributionThreeWhatisthedifferencebetweenthe3normaldistributions?
XN(m,s2)18BPTLConfidentialxe21xf2x216推行教材ANormal(A,A)BNormal(B,B)ANormal(A,A)BNormal(B,B)ANormal(A,A)BNormal(B,B)WhatisthedifferencebetweenprocessA&Bforeachcase?
正態分布的一些特性正態分布的一些特性9BPTLConfidential6推行教材Themean,medianandmodeallcoincideatthesamevalue-m.Thereisperfectsymmetry.+-MeanMedianMode2Themeanrepresentsthearithmeticaverageofallobservationsinadataset.Ifasetofobservationsisarrangedinanincreasingorderofmagnitude(rankeddata),themiddlevalueiscalledthemedian.lIfthenumberofobservationsisodd,themedianisthevalueofthemiddlenumber.lIfthenumberofobservationsiseven,thereare2middlenumbers,andthemedianistheaverageofthe2values.Themodeistheobservationthatoccursmostfrequentlyinthesample.正態分布的一些特性正態分布的一些特性10BPTLConfidential6推行教材Theareaundersectionsofthecurvecanbeusedtoestimatethecumulativeprobabilityofacertain“event”occurring:
PointofInflection1ss+-68.27%95.45%99.73%m+/-3sisoftenreferredtoasthewidthofanormaldistribution3正態分布的一些特性正態分布的一些特性11BPTLConfidential6推行教材Letscomputethecumulativeprobabilitiesofthefollowingdistributions:
+-m=3.5s=0.61.8+-20.0m=16.6s=2.8+-m=-1.5s=0.9-2.80.5正態分布的一些特性正態分布的一些特性12BPTLConfidential6推行教材MiniTab:
CalcProbabilityDistributionsNormal.EntermvalueEntersvalueEnterxvalue正態分布的一些特性正態分布的一些特性13BPTLConfidential6推行教材什么是什么是6?
14BPTLConfidential6推行教材6簡介15BPTLConfidential6推行教材TheFocusofSixSigmaIdentifyingcriticalaspectsofthebusinesswithproblemsoropportunitiesforimprovement.TargetingthosecriticalareasanddesignatingimprovementeffortsasSixSigmaBlackBeltprojects.Selectingtoppeopletoworkontheprojects-fulltime.Ensuringthesepeoplehavethetime,tools,andresourcestheyneedtosucceed.16BPTLConfidential6推行教材CustomerFocus:
AModelForSuccessTechnologyTechnologyCapabilityCapabilityOrganizationOrganizationPeoplePeopleProcessesProcesses商務上的生存競爭有賴于我們多大程度上讓我們的客戶滿意商務上的生存競爭有賴于我們多大程度上讓我們的客戶滿意.客戶滿意才能体現品質客戶滿意才能体現品質,价格价格,和貨期的意義和貨期的意義.品質品質,成本成本,准時走貨無不依耐于工序能力准時走貨無不依耐于工序能力.WhatpurposeisSix-sigma?
17BPTLConfidential6推行教材SixSigmaVisionTheVisionofSixSigmaistodelightcustomersbydeliveringworld-classqualityproductsthroughtheachievementofSixSigmalevelsofperformanceineverythingwedo.WhatpurposeisSix-sigma?
SixSigmaPhilosophyThephilosophyofSixSigmaistoapplyastructured,systematicapproachtoachievebreakthroughimprovementacrossallareasofourbusiness.18BPTLConfidential6推行教材2308,537366,80746,210523363.4PPMProcessCapabilityDefectsperMillionOpp.SixSigma-AggressiveGoalWhatpurposeisSix-sigma?
19BPTLConfidential6推行教材StatisticalDefinitionofn-SigmaLSLLSLUSLUSLProcessWidthmoDesignWidthTTscaleLSLLSLUSLUSLscaleTT+nssscale-nssThisistheso-calledn-sigmaSigmaisastatisticalunitofmeasurethatreflectsprocesscapability.Thesigmascaleofmeasureisperfectlycorrelatedtosuchcharacteristicsasdefects-per-unit,parts-permilliondefective,andtheprobabilityofafailure/error.20BPTLConfidential6推行教材StatisticalDefinitionof6Thisisthesix-sigmawesaidLSLLSLUSLUSLProcessWidthmoDesignWidth-3ssst+3ssstTT.001ppmUSL.001ppm2)b)工序能力可工序能力可(Cp=1to2)c)工序能力差工序能力差(Cp1.5)b)工序能力可工序能力可(Cpk=1to1.5)c)工序能力差工序能力差(Cpk1)a)Cp=2Cpk=2b)Cp=2Cpk=1c)Cp=2Cpk143BPTLConfidential6推行教材工序潛力与工序表現工序潛力与工序表現(a)PoorProcessPotential(b)PoorProcessPerformanceLSLUSLLSLUSLExperimentalDesigntoreducevariationExperimentalDesigntocentermeantoreducevariation44BPTLConfidential6推行教材工序潛力与工序表現工序潛力与工序表現a)Cp=2Cpk=2b)Cp=2Cpk=1c)Cp=2CpkUSLPPMUSLPPMUSLPPMUSLPPMUSLPPMUSLPPMUSLPPMUSLPPMUSLPPMLSLPpkPPLPPUPpCpmCpkCPLCPUCpStDev(Overall)StDev(Within)SampleNMeanLSLTargetUSL12352.051486.4110865.648685.19876.047809.1510000.000.0010000.000.770.770.990.88*0.810.811.040.920.09904330.09401751000.999990.77268*1.29420Exp.OverallPerformanceExp.WithinPerformanceObservedPerformanceOverallCapabilityPotential(Within)CapabilityProcessDataWithinOverall6推行教材Whats“6”QualityThenOriginalDefinitionbyMotorola:
Intheshortterm,thespecificationlimitsareatleast6awayfromtheprocessmean,i.e.Cp2,Inthelongrun,theprocesswillshiftbylessthan1.5,i.e.Ppk1.5,Theprocesswillyieldlessthan3.4dppmrejectedparts.66Shift1.54.5“SigmaLevel”Capability62BPTLConfidential6推行教材WhatsSixSigmaQualityNowMikelJHarryclaimsthattheprocessmeanbetweenlotswillvary,withanaverageprocessshiftof1.5.k=z+1.5k=z+1.5Shift1.5zNote:
SigmaCapability=(dpmo)(dppm)“SigmaLevel”Capability63BPTLConfidential6推行教材TypesofVariation1.PositionalVariationSameprocess,variationatdifferinglocationssimultaneously:
TemperaturevariationsinsideathermalchamberCavity-to-cavityvariationsinaninjectionmold2.CyclicalVariationSequentialrepetitionsofaprocessoverfairlyshorttime,say,lessthan15mins:
VariationsbetweenconsecutivebatchesofaprocessDifferencesfromlottolotofrawmaterials64BPTLConfidential6推行教材TypesofVariation3.TemporalVariationVariationsoverlongerperiodsoftime,suchaseveralhours,daysorweeks.65BPTLConfidential6推行教材MeasurementSystemAnalysisApproachTherearetwotypesofmeasurementspossible:
VariableDatacanbedescribedonacontinuousscaleAttributeDatacannotbeadequatelydescribedonacontinuousscalePass/Fail,verylowcountsEachmustbeapproacheddifferently.66BPTLConfidential
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- SixSigma Training Bookppt66 Book ppt66