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M1MinitabtrainingCAFSTAMinitabtrainingSTA2培训目标结束培训后,学员将能够:•运用Minitab进行GageR&R分析;•运用Minitab作SPC管控图并分析.•运用Minitab计算过程能力PP/PPK、CP/CPK并分析MinitabtrainingSTA3Minitab运用状态MINITAB统计软件是一个很好的质量管理,质量设计和持续质量改进的工具软件。MINITAB被许多世界一流的公司所采用,包括通用电器、福特汽车、通用汽车、3M、LG、东芝、诺基亚、以及SixSigma顾问公司。同时,MINITAB也被4,000多所高等院校所采用。MinitabtrainingSTA4Minitab运用于GageR&R※测量误差的组成部分•分辨率/分辨力•精确度(偏差效果)•线性度•稳定度(一致性)•重复性(精度)•再现性(准度)“如果不测量,就不能改进!”–TaguchiMinitabtrainingSTA准度xxxxxxxxx准度上图所示的测量平均值偏离了真值吗?MinitabtrainingSTA精度xxxxxxxxxx精度上图所示的测量值散布为多少?MinitabtrainingSTA7GageR&R-重复性•在绝对相同的条件下,•同一个操作者反复测量同一个零件的相同特性所得到的变差。•相同处:•操作者•设备•零件•环境条件•短期SixSigma-Tools&ConceptsMesRepe_001RepeatabilityA我们将重复性考虑为测量系统的固有变差。重复性错误来自于量具本身,以及零件与量具的交互作用。MinitabtrainingSTA8GageR&R-再现性再现性错误来自于操作者与量具的交互作用。指不同的操作者在相同下列条件下测量的变差:•相同条件•设备•测试件/测量部位•环境条件•测量地点•测量方法•短期SixSigma-Tools&ConceptsMeasRepr_001ReproducibilityOperatorCOperatorAOperatorBAMinitabtrainingSTA9R&R(重复性和再现性)全图:将所有这些连接起来2总计=2R&R+2产品/过程2总计=2重复+2再现+2产品/过程2总计=2重复+2操作者+2操作者和过程输出交互+2产品/过程MinitabtrainingSTA10特性数据的GageR&R11MeasurementErrorMeasureAttributeGageStudyNO-GOGOErrorOperator2Operator11_03_03_009Operator3特性数据GageR&R需要至少:•3个不同的操作者•30个零件(包括1/3的合格零件、1/3的不合格零件、1/3的边缘件其中一半为合格零件、一半为不合格零件)•每个零件测3次MinitabtrainingSTA11特性数据的GageR&RR&R90%才能通过!%100总测量次数操作者一致且正确数R&R=MinitabtrainingSTA12变量数据MSA14MeasurementErrorMeasureVariableGageStudyBuckingHeightRivet1_03_03_012MeasureHere变量数据GageR&R需要至少:•2个不同的操作者•5~10个零件•每个零件测3次MinitabtrainingSTA13变量数据MSA—数据堆栈数据最初看起来像图中所示,应该将数据堆栈到一列中现在可以使用宏进行数据分析使用命令ManipStackStackColumns(将过程输出、操作者和测量值在一列中进行堆栈)MinitabtrainingSTA14注意:c10,c11,c12列中的数据在我们的例子中可以得到。现在必须将其堆栈到这些列中输入标题堆栈准备进行分析MinitabtrainingSTA15准备分析使用命令StatQualityToolsGageR&RStudy(Crossed)每个操作者测量每一个样本过程输出或GageR&RStudy(Nested)对于“破坏性试验”,每个操作者测量一个样本过程输出MinitabtrainingSTA16ANOVA方法是首选•可以得到更多的信息输入量具信息,设定选项选择分析方法MinitabtrainingSTA17USL-LSL=0.50USL=1.0LSL=0.6USL=1.0LSL=0.5加入公差(选项)上规范限(USL)下规范限(LSL)在本例中MinitabtrainingSTA18Two-WayANOVATableWithInteractionSourceDFSSMSFPPart92.058710.22874539.71780.00000Operator20.048000.0240004.16720.03256Operator*Part180.103670.0057594.45880.00016Repeatability300.038750.001292Total592.24912GageR&R%ContributionSourceVarComp(ofVarComp)TotalGageR&R0.00443710.67Repeatability0.0012923.10Reproducibility0.0031467.56Operator0.0009122.19Operator*Part0.0022345.37Part-To-Part0.03716489.33TotalVariation0.041602100.00StdDevStudyVar%StudyVar%ToleranceSource(SD)(5.15*SD)(%SV)(SV/Toler)TotalGageR&R0.0666150.3430632.6668.61Repeatability0.0359400.1850917.6237.02Reproducibility0.0560880.2888527.5057.77Operator0.0302000.1555314.8131.11Operator*Part0.0472630.2434023.1748.68Part-To-Part0.1927810.9928294.52198.56TotalVariation0.2039651.05042100.00210.08NumberofDistinctCategories=4MSA输出:Gagename:Dateofstudy:Reportedby:Tolerance:Misc:00.30.40.50.60.70.80.91.01.1123XbarChartbyOperatorSampleMeanMean=0.8075UCL=0.8796LCL=0.735400.000.050.100.15123RChartbyOperatorSampleRangeR=0.03833UCL=0.1252LCL=0123456789100.40.50.60.70.80.91.01.1PartOperatorOperator*PartInteractionAverage1231230.40.50.60.70.80.91.01.1OperatorByOperator123456789100.40.50.60.70.80.91.01.1PartByPart%Contribution%StudyVar%ToleranceGageR&RRepeatReprodPart-to-Part0100200ComponentsofVariationPercentGageR&R(ANOVA)forResponse这些是什么含义?SessionWindowGraphsMinitabtrainingSTA19Gagename:Dateofstudy:Reportedby:Tolerance:Misc:00.30.40.50.60.70.80.91.01.1123XbarChartbyOperatorSampleMeanMean=0.8075UCL=0.8796LCL=0.735400.000.050.100.15123RChartbyOperatorSampleRangeR=0.03833UCL=0.1252LCL=0123456789100.40.50.60.70.80.91.01.1PartOperatorOperator*PartInteractionAverage1231230.40.50.60.70.80.91.01.1OperatorByOperator123456789100.40.50.60.70.80.91.01.1PartByPart%Contribution%StudyVar%ToleranceGageR&RRepeatReprodPart-to-Part0100200ComponentsofVariationPercentGageR&R(ANOVA)forResponseMSA好的一面图形输出–一共6张图如果只有1位操作者,就不能得到这张图MinitabtrainingSTA20破坏性试验Gagename:Dateofstudy:Reportedby:Tolerance:Misc:12131415161718BillieNathanSteveXbarChartbyOperatorSampleMeanMean=15.15UCL=17.62LCL=12.68012345BillieNathanSteveRChartbyOperatorSampleRangeR=1.313UCL=4.290LCL=0BillieNathanSteve131415161718OperatorByOperator678910111213141512345BillieNathanSteve131415161718PartOperatorByPart(Operator)%Contribution%StudyVarGageR&RRepeatReprodPart-to-Part050100ComponentsofVariationPercentGageR&R(Nested)forResponse操作者和工件的交互不存在MinitabtrainingSTA21变量数据MSA—图形输出图形输出•Xbar图:显示样本的过程输出的变化•再现性/偏差/灵敏度•R图:帮助确定不正常的测量•分辨力/重复性•柱形图:识别从过程输出到过程输出的重复性和再现性(R&R)•变差的组成部分这些引导图形的指示MinitabtrainingSTA22Misc:Tolerance:Reportedby:Dateofstudy:Gagename:043210-1321XbarChartbyOperatorSampleMeanMean=1.401UCL=3.654LCL=-0.8528043210321RChartbyOperatorSampleRangeR=1.198UCL=3.915LCL=0109876543212.01.51.0PartOperatorOperator*PartInteractionAverage123321321OperatorByOperator10987654321321PartByPart%Contribution%StudyVarPart-to-PartReprodRepeatGageR&R100500ComponentsofVariationPercentGageR&R(ANOVA)forResponse%Contribution%StudyVarGageR&RRepeatReprodPart-to-Part050100ComponentsofVariationPercentGageR&R(ANOVA)forScore各个组成部分的柱形图较好需要帮助回答:“变差在那里?”MinitabtrainingSTA230300400500600
本文标题:Minitab-GageR&R
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