《《精编》6SIGMA某工作案例-3》由会员分享，可在线阅读，更多相关《《精编》6SIGMA某工作案例-3（15页珍藏版）》请在金锄头文库上搜索。
1、NOV 23 2000 Page1 2 C LMould Cavity别 差异分析 A A 特异点原因 1EAC L破损 对CKDMould进行Cavity别2 SampleTTest Cavity别具体分析 NOV 23 2000 Page2 Individual95 CIsForMeanBasedonPooledStDevLevelNMeanStDev C21 154 49400 0472 C21 254 51400 0055 C21 354 53000 0000 C21 454 52000 0071 C31 154 50600 0055 C31 254 51800 0045 C31 35
2、4 50800 0045 C31 454 51600 0055 C41 154 51600 0055 C41 254 51800 0045 C41 354 52800 0045 C41 454 52800 0045 C51 154 51800 0045 C51 254 52400 0055 C51 354 49800 0045 C51 454 51200 0045 C91 154 50600 0055 C91 254 51000 0000 C91 354 51000 0000 C91 454 50600 0055 K52 154 51200 0045 K52 254 52600 0089 K5
3、2 354 42200 0045 K52 454 45200 0045 PooledStDev 0 01084 4454 4804 515 One wayANOVA C LDiameter 1versusNutCavityAnalysisofVarianceforC LDiamSourceDFSSMSFPNutCavi230 0667600 00290324 970 000Error960 0111600 000116Total1190 077920 续上 对CKDMould与其他全部Cavity别2 SampleTTest NOV 23 2000 Page3 A Two SampleT Te
4、standCI K52 C Two sampleTforK52vsC NMeanStDevSEMeanC 204 53220 01020 0023K52204 451910 009450 0021Difference muK52 2 muK52 3Estimatefordifference 0 0802795 CIfordifference 0 07396 0 08658 T Testofdifference 0 vsnot T Value 25 77P Value 0 000DF 37 续上 NOV 23 2000 Page4 A 3 Line Operator Analysis NOV 2
5、3 2000 Page5 A DefectDataAnalysisforLine NOV 23 2000 Page6 Line DefectAnalysis A NOV 23 2000 Page7 DefectEffectbyLineAnalysis A NOV 23 2000 Page8 Chi SquareTest OK NGExpectedcountsareprintedbelowobservedcountsOKNGTotalMachine123256532330923253 5555 45Machine222760452280522750 7554 25Machine320360722
6、043220383 3948 61Machine422528422257022516 3153 69Total8890421289116Chi Sq 0 000 0 108 0 004 1 578 0 027 11 259 0 006 2 546 15 528DF 3 P Value 0 001 p value值小于0 05 因此可得出设备别不良发生率的概率有差异 3号机器的Chi sq值最大 因此我们用2号机器和其它机器进行一下比较 A 11 8日富钢业体4台Nut压入机一天不良统计表 4 MachineChi SquareTest NOV 23 2000 Page9 Chi SquareT
7、est OK NGOKNGTotalMachine123256532330923261 4947 51Machine222760452280522758 5246 48Machine422528422257022524 0046 00Total6854414068684Chi Sq 0 001 0 634 0 000 0 047 0 001 0 349 1 032DF 2 P Value 0 597P Value 0 05Machine1 2 4无差异 Chi SquareTest OK NGOKNGTotalMachine320360722043220382 2549 75Machine1
8、2 4685441456868968521 75167 25Total8890421789121Chi Sq 0 024 9 951 0 007 2 960 12 943DF 1 P Value 0 000P Value 0 05Machine3与Machine1 2 4有差异 原因分析 Machine3Jig定位块高度不良 使冲头压入不完全 对策 取掉限位块 使冲头能完全压入 A 续上 NOV 23 2000 Page10 A Phase小结 NOV 23 2000 Page11 I PhaseNutForceDOE NOV 23 2000 Page12 Data收集 NOV 23 2000 Page13 MainEffectPlotforNutForce I NOV 23 2000 Page14 MainEffectOrderforNutForce NOV 23 2000 Page15 InteractionPlotforNutForce I
