1、 BPE品质改善个案之八11511马达流高改善个案一.问 题 描 述Define 定义11511马达不顺长期困扰着流水线三.改 善 目 标改善一试流高PPM USLPPM USLPPM USLPPM LSLPpkPPLPPUPpCpmCpkCPLCPUCpStDev(Overall)StDev(Within)Sample NMeanLSLTargetUSL408901.05408901.05 *408901.05408901.05 *600000.00600000.00 *0.08 *0.08 *0.08 *0.08 *0.03212190.0321219300.2756 *0.2830Exp
2、.Overall PerformanceExp.Within PerformanceObserved PerformanceOverall CapabilityPotential(Within)CapabilityProcess DataWithinOverall仪器改善后一试PPM408901！仪器改善后一试CPK0.08！马达一试改善后CPK0.08,PPM408901,工序制程明显不足，需继续改善来料和机模制程。ManMachineMaterialsMethods电刷片弹力大花枝马马达达不不顺顺磁力不对中，偏心啤杯士模不平行啤杯士模不平行封口高低封口高低杯士中孔小弯枝撞花杯士磁底内径小马
3、达内有杂物铁枝有胶、杂物 磁碎撞花杯士芯片有胶零件落地机模脏有杂物机模定位松动温度高湿度大有尘铁枝直径大，花枝铁枝生锈，弯枝杯士中孔小杯士中孔小，油孔小杯士孔有杂物胶盖猪咀不同心胶盖猪咀不同心胶盖止口位披峰不平行胶盖止口位披峰不平行铁壳猪咀不同心铁壳猪咀不同心铁壳止口位不平行铁壳止口位不平行中孔Analyze phase 分析一.鱼骨图分析通过.鱼骨图分析，首先将来料中红色部分重点部分检测。分析改善。2.1胶盖止口胶盖止口宽度宽度STD19.18-19.23MM 19.1719.1819.1919.2019.2119.2219.2319.24LSLUSL11511-30100USLTarget
4、LSLMeanSample NStDev(Within)StDev(Overall)CpCPUCPLCpkCpmPpPPUPPLPpkPPM USLPPM TotalPPM USLPPM TotalPPM USLPPM Total19.2300 *19.180019.2037300.01107570.01107570.750.790.710.71 *0.750.790.710.71 0.00 0.00 0.0016306.75 8713.4125020.1516306.75 8713.4125020.15Process DataPotential(Within)CapabilityOveral
5、l CapabilityObserved PerformanceExp.Within PerformanceExp.Overall PerformanceWithinOverallAnalyze phase 分析胶盖止口胶盖止口宽度宽度 CPK0.71二.来料胶盖止口宽度制程止分析Analyze phase 分析 N Mean StDev SE Mean19.18-19.1 10 0.2788 0.0206 0.006519.22-19.2 10 0.2788 0.0206 0.0065Difference=mu(19.18-19.1)-mu(19.22-19.2)Estimate for d
6、ifference:0.0000095%CI for difference:(-0.01938,0.01938)T-Test of difference=0(vs not=):T-Value=0.00 P-Value=1.000 DF=1819.22-19.23MM19.18-19.19MM0.310.300.290.280.270.260.250.24胶盖止口宽度一试电流数据Boxplots of 一试电流 by 胶盖止口(means are indicated by solid circles)流水线物料、机模不变，胶盖止口宽度两组实验 (19.18-19.19MM)(19.22-19.2
7、3MM)看F/L流变化二.来料胶盖止口宽度制程止分析2.2胶盖止口胶盖止口宽度宽度假设实验假设实验两组实验结果对比：两组实验结果对比：p值大于值大于0.05，接受归，接受归零假设零假设(影响不显著影响不显著)3.1胶盖猪咀胶盖猪咀中孔同心度中孔同心度STD 0.05MM MAXAnalyze phase 分析0.000.020.040.060.080.100.120.14USLUSL胶盖猪咀中孔同心度USLTargetLSLMeanSample NStDev(Within)StDev(Overall)CpCPUCPLCpkCpmPpPPUPPLPpkPPM USLPPM TotalPPM US
8、LPPM TotalPPM USLPPM Total0.0500 *0.0632300.02078750.0226604 *-0.21 *-0.21 *-0.19 *-0.19 *700000.00700000.00 *737285.02737285.02 *719889.88719889.88Process DataPotential(Within)CapabilityOverall CapabilityObserved PerformanceExp.Within PerformanceExp.Overall PerformanceWithinOverall胶盖猪咀中胶盖猪咀中孔同心度孔同心
9、度CPK-0.21三.来料胶盖猪咀中孔同心度制程分析三.来料胶盖猪咀中孔同心度制程分析Analyze phase 分析0.030-0.0450.100-0.1200.230.240.250.260.270.280.290.300.31同心度一试电流数据Boxplots of 一试电流 by 同心度(means are indicated by solid circles)两组实验结果对比：两组实验结果对比：P值小于值小于0.05,接受接受对立假设对立假设(影响显著影响显著)接着须做分头号实接着须做分头号实验验流水线物料、机模不变，胶盖猪咀中孔同心度流水线物料、机模不变，胶盖猪咀中孔同心度STD
10、0.05MM MAX (0.05-0.06MM)(0.10-0.11MM)看看F/L流变化流变化Difference=mu(0.030-0.04)-mu(0.100-0.12)Estimate for difference:-0.0224095%CI for difference:(-0.03790,-0.00690)T-Test of difference=0(vs not=):T-Value=-3.05 P-Value=0.007 DF=173.2.1胶盖猪咀中孔同心度假设实验1#2#3#4#5#6#7#8#0.050.100.15胶窷-20100胶盖猪咀中孔同心度Boxplots of
11、胶盖猪咀 by 胶窱(means are indicated by solid circles)Analyze phase 分析One-way ANOVA:Analysis of Variance for 胶盖猪咀Source DF SS MS F P胶盖1151 7 0.099960 0.014280 68.72 0.000Error 72 0.014962 0.000208Total 79 0.114922 Individual 95%CIs For Mean Based on Pooled StDevLevel N Mean StDev -+-+-+-1#10 0.06550 0.011
12、59 (-*-)2#10 0.05180 0.01060 (-*-)3#10 0.13430 0.02171 (-*-)4#10 0.05900 0.01846 (-*-)5#10 0.14880 0.01718 (-*-)6#10 0.06220 0.01065 (-*-)7#10 0.05660 0.01044 (-*-)8#10 0.07500 0.00929 (-*-)-+-+-+-Pooled StDev=0.01442 0.070 0.105 0.1403#，5#头的胶盖的同心度明显比其它的大1#-8#胶盖的同心度分布实验三.来料胶盖猪咀中孔同心度制程分析3.2.2胶盖猪咀中孔同心
13、度1#-8#头假设实验8#7#6#5#4#3#2#1#0.350.300.25胶竔6-20100一试电流Boxplots of 一试电流 by 胶窱(means are indicated by solid circles)Analyze phase 分析One-way ANOVA:Analysis of Variance for 一试电流Source DF SS MS F P胶盖1151 7 0.037528 0.005361 29.71 0.000Error 72 0.012991 0.000180Total 79 0.050519 Individual 95%CIs For Mean B
14、ased on Pooled StDevLevel N Mean StDev -+-+-+-+-1#10 0.25790 0.01475 (-*-)2#10 0.26430 0.00810 (-*-)3#10 0.29890 0.01166 (-*-)4#10 0.25800 0.01374 (-*-)5#10 0.32190 0.01871 (-*-)6#10 0.27040 0.01562 (-*-)7#10 0.26290 0.01107 (-*-)8#10 0.26410 0.01092 (-*-)-+-+-+-+-Pooled StDev=0.01343 0.250 0.275 0.
15、300 0.3253#，5#头的胶盖装配的马达一试电流明显比其它的高1#-8#胶盖的同心度分布一试电流实验三.来料胶盖猪咀中孔同心度制程分析3.2.3胶盖猪咀中孔同心度1#-8#头一试电流假设实验1.9971.9981.9992.0002.0012.0022.0032.0042.005LSLUSLCPSBBD214/5/55USLTargetLSLMeanSample NStDev(Within)StDev(Overall)CpCPUCPLCpkCpmPpPPUPPLPpkPPM USLPPM TotalPPM USLPPM TotalPPM USLPPM Total2.00500 *2.00
16、0002.00127300.00129590.00129590.630.940.320.32 *0.630.940.320.32 0.00 0.00 0.00164169.31 1982.38166151.69164169.31 1982.38166151.69Process DataPotential(Within)CapabilityOverall CapabilityObserved PerformanceExp.Within PerformanceExp.Overall PerformanceWithinOverallSTD：2.000-2.005mm4.1杯士中孔杯士中孔Analyz
17、e phase 分析杯士中孔杯士中孔CPK0.32四.来料杯士中孔制程分析Analyze phase 分析四.来料杯士中孔制程分析2.004-2.005MM2.000-2.001MM0.300.290.280.270.260.250.24杯士中孔一试电流数据Boxplots of 一试电流 by 杯士中孔(means are indicated by solid circles)流水线物料、机模不变，铁壳杯士中孔铁壳杯士中孔STD 2.000-2.005MM (2.000-2.001MM)(2019-2.005MM)看F/L流变化Difference=mu(2.000-2.00)-mu(2.0
18、04-2.00)Estimate for difference:-0.0001095%CI for difference:(-0.01487,0.01467)T-Test of difference=0(vs not=):T-Value=-0.01 P-Value=0.989 DF=17Boxplots of 一试电流一试电流 by 杯士中孔杯士中孔两组实验结果对比：两组实验结果对比：p值大于值大于0.05，接受归，接受归零假设零假设(影响不显著影响不显著)4.2来料杯士中孔假设实验0.000.010.020.030.040.050.06LSLUSL11511-30100USLTargetLS
19、LMeanSample NStDev(Within)StDev(Overall)CpCPUCPLCpkCpmPpPPUPPLPpkPPM USLPPM TotalPPM USLPPM TotalPPM USLPPM Total0.0500000 *0.00000000.0393333300.00697480.00697481.190.511.880.51 *1.190.511.880.51 0.00 0.00 0.00 0.0163092.5163092.51 0.0163092.5163092.51Process DataPotential(Within)CapabilityOverall
20、CapabilityObserved PerformanceExp.Within PerformanceExp.Overall PerformanceWithinOverall5.1 铁壳猪咀中孔铁壳猪咀中孔同同心度心度STD：0.05MM MAXAnalyze phase 分析铁壳猪咀中铁壳猪咀中孔孔 同心度同心度CPK0.51五.来料铁壳猪咀中孔制程分析 Analyze phase 分析五.来料铁壳猪咀中孔制程分析5。2 铁壳猪咀中孔同心度铁壳猪咀中孔同心度STD：0.05MM MAXDifference=mu(0.01-0.02M)-mu(0.04-0.05M)Estimate for
21、difference:-0.0031095%CI for difference:(-0.02280,0.01660)T-Test of difference=0(vs not=):T-Value=-0.33 P-Value=0.744 DF=170.04-0.05MM0.01-0.02MM0.310.300.290.280.270.260.250.240.23铁壳猪咀中孔一试电流数据Boxplots of 一试电流 by 铁壳猪咀(means are indicated by solid circles)两组实验结果对比：两组实验结果对比：P值大于值大于0.05接受接受归零假设归零假设(影响不
22、影响不显著显著)流水线物料、机模不变，铁壳猪咀内径同心度两组实验铁壳猪咀内径同心度两组实验 (0。01-0。02MM)(0。06-0。07MM)看F/L流变化7.507.527.547.567.587.60LSLUSL11511-30100USLTargetLSLMeanSample NStDev(Within)StDev(Overall)CpCPUCPLCpkCpmPpPPUPPLPpkPPM USLPPM TotalPPM USLPPM TotalPPM USLPPM Total7.60000 *7.500007.55633300.00620270.00620272.692.353.032
23、.35 *2.692.353.032.350.000.000.000.000.000.000.000.000.00Process DataPotential(Within)CapabilityOverall CapabilityObserved PerformanceExp.Within PerformanceExp.Overall PerformanceWithinOverall 6.1铁壳崩口位宽度 7.5-7.6MMAnalyze phase 分析铁壳止口位宽度 CPK2.35六.来料铁壳崩口位宽度制程分析STD Analyze phase 分析六.来料铁壳止口制程分析7.56-7.57
24、MM7.55-7.56MM0.310.300.290.280.270.260.250.240.23铁壳止口位宽度一试电流数据Boxplots of 一试电流 by 铁壳止口(means are indicated by solid circles)Difference=mu(7.55-7.56M)-mu(7.56-7.57M)Estimate for difference:-0.000495%CI for difference:(-0.0272,0.0264)T-Test of difference=0(vs not=):T-Value=-0.03 P-Value=0.975 DF=17两组实
25、验结果对比：两组实验结果对比：P值大于值大于0.05接受接受归零假设归零假设(影响不影响不显著显著)流水线物料、机模不变，铁壳止口位宽度铁壳止口位宽度两组实验两组实验 (7.55-7.56MM)(7.56-7.57MM)看看F/L流变化流变化6.2来料铁壳止口假设实验1.61.71.81.92.0LSLUSL11511-30100USLTargetLSLMeanSample NStDev(Within)StDev(Overall)CpCPUCPLCpkCpmPpPPUPPLPpkPPM USLPPM TotalPPM USLPPM TotalPPM USLPPM Total2.000 *1.6
26、001.854300.00568120.005681211.73 8.5714.90 8.57 *11.73 8.5714.90 8.570.000.000.000.000.000.000.000.000.00Process DataPotential(Within)CapabilityOverall CapabilityObserved PerformanceExp.Within PerformanceExp.Overall PerformanceWithinOverall 7.1铁壳崩口位深度STDAnalyze phase 分析铁壳止口位深度CPK8.57七.来料铁壳崩口位深度制程分析1
27、.60-2.00MM Analyze phase 分析1.85-1.86MM1.84-1.85MM0.310.300.290.280.270.260.250.24铁壳止口位深度一试电流数据Boxplots of 一试电流 by 铁壳止口(means are indicated by solid circles)Difference=mu(1.84-1.85M)-mu(1.85-1.86M)Estimate for difference:0.0032095%CI for difference:(-0.01558,0.02198)T-Test of difference=0(vs not=):T-
28、Value=0.36 P-Value=0.724 DF=17流水线物料、机模不变，铁壳崩口位深度两组实验 (1.84-1.85MM)(1.85-1.86MM)看F/L流变化七.来料铁壳崩口位深度制程分析7.2铁壳崩口位深度假设实验两组实验结果对比：两组实验结果对比：P值大于值大于0.05接受接受归零假设归零假设(影响不影响不显著显著)Analyze phase 分析STD 0.05 mm MAX0.000.020.040.060.080.10USLUSL鐵殼止口平行度USLTargetLSLMeanSample NStDev(Within)StDev(Overall)CpCPUCPLCpkCp
29、mPpPPUPPLPpkPPM USLPPM TotalPPM USLPPM TotalPPM USLPPM Total0.0500000 *0.0426667300.01222790.0152012 *0.20 *0.20 *0.16 *0.16 *166666.67166666.67 *274346.43274346.43 *314754.16314754.16Process DataPotential(Within)CapabilityOverall CapabilityObserved PerformanceExp.Within PerformanceExp.Overall Perfo
30、rmanceWithinOverall铁壳止口平铁壳止口平行度行度 CPK0.20八八.来料铁壳止口平行度制程分析来料铁壳止口平行度制程分析8.1铁壳止口平行度铁壳止口平行度Analyze phase 分析0.03-0.04MM0.01-0.02MM0.310.300.290.280.270.260.250.240.23铁壳止口平行度一试电流数据Boxplots of 一试电流 by 铁壳止口(means are indicated by solid circles)Difference=mu(0.01-0.02M)-mu(0.03-0.04M)Estimate for difference:
31、-0.0170095%CI for difference:(-0.03390,-0.00010)T-Test of difference=0(vs not=):T-Value=-2.12 P-Value=0.049 DF=17流水线物料、机模不变，铁壳止口平行度流水线物料、机模不变，铁壳止口平行度两组实验两组实验(0。01MM)(0。03-0。04MM)看看F/L流变化流变化八八.来料铁壳止口平行度制程分析来料铁壳止口平行度制程分析8.2铁壳止口平行度铁壳止口平行度假设实验假设实验两组实验结果对比：两组实验结果对比：P值小于值小于0.05接受接受对立假设对立假设(影响显著影响显著)九九.机模制
32、程分析机模制程分析 9.1 9.1机机模制程模制程流程图流程图1.接触电阻小2.来料电阻小3.用错料打米曲角度啤碳精胶盖装配1.接触电阻小1.弹力大胶盖啤杯士1.杯士中孔小2.杯士油孔少3.同心度差4.平行度差1.电刷片挂防油圈2.电刷片变形啤磁1.内径小磁底啤杯士1.杯士中孔小2.杯士油孔少3.同心度差4.平行度差充磁1.充磁方式不合适2.磁力中线不对3.磁吸力大电枢入磁底1.碰伤杯士2.弯枝3.花枝马达装配1.碰伤杯士2.弯枝、花枝3.电刷片变形马达封口1.脚仔深浅2.封口推力大一试1.机模再现性2.员工手势Analyze phase 分析九九.机模制程分析机模制程分析Analyze ph
33、ase 分析9.2.机模制程因果矩阵Rating of Importance to Customer10123456789101112131415一试流高TotalProcess StepProcess Input打米插头与电刷片接触电阻110曲角度电刷片弹力大220啤碳精碳精接触电阻小110胶盖装配电刷片挂防油圈330胶盖啤杯士胶盖杯士中孔小550胶盖杯士油孔少330胶盖杯士同心度990胶盖杯士平行度差990啤磁磁底内径小660磁底啤杯士磁底杯士中孔小550磁底杯士油孔少330磁底杯士同心度990磁底杯士平行度差990充磁磁底磁吸力大550电枢入磁底电枢入磁底碰伤杯士440电枢弯枝660电枢
34、花枝550Cause and Effect Matrix九九.机模制程分析机模制程分析Analyze phase 分析9.3机模制程分析柏拉图O ther s电刷片弹力大马达装配时电刷片变形胶盖杯士油孔少电刷片挂防油圈磁底杯士油孔少一试机模不稳定马达装配碰伤杯士电枢入磁底碰伤杯士一试员工手势入磁底电枢花枝马达封口 脚仔深浅马达装配电枢花枝胶盖杯士中孔小磁底杯士中孔小磁底磁吸力大入磁底电枢弯枝马达封口推力大马达装配电枢弯枝磁底内径小胶盖杯士同心度胶盖杯士平行度差磁底杯士同心度磁底杯士平行度差20203030303040404050505050505050606060609090909022222
35、2333444444455557777100 98 97 94 92 89 87 84 80 77 73 69 65 61 57 53 49 44 39 34 29 22 15 710005000100806040200DefectCountPercentCum%PercentCountPareto Chart for KPIVs从以上结果，我们总结出以下5项相对关键的因子为，-磁底杯士平行度-磁底杯士同心度-胶盖杯士平行度-胶盖杯士同心度Analyze phase 分析BA0.300.250.20胶盖啤杯士模一试电流数据Boxplots of 一试电流 by 胶盖啤杯(means are i
36、ndicated by solid circles)Difference=mu(A)-mu(B)Estimate for difference:0.042795%CI for difference:(0.0162,0.0692)T-Test of difference=0(vs not=):T-Value=3.43 P-Value=0.004 DF=15Boxplots of 一试电流一试电流 by 胶盖啤杯胶盖啤杯流水线物料、机模不变，换胶盖啤杯士模看F/L流变化十十.胶盖啤杯士模制程分析胶盖啤杯士模制程分析两组实验结果对比：两组实验结果对比：P值小于值小于0.05接受接受对立假设对立假设(
37、影响显著影响显著)Analyze phase 分析BA0.300.250.20铁壳啤杯士模一试电流数据Boxplots of 一试电流 by 铁壳啤杯(means are indicated by solid circles)Difference=mu(A)-mu(B)Estimate for difference:0.057995%CI for difference:(0.0346,0.0812)T-Test of difference=0(vs not=):T-Value=5.25 P-Value=0.000 DF=17Boxplots of 一试电流一试电流 by 铁壳啤杯铁壳啤杯流水线
38、物料、机模不变，换磁底啤杯士模看F/L流变化十一十一.磁底啤杯士模制程分析磁底啤杯士模制程分析两组机模结果对比：两组机模结果对比：P值小于值小于0.05接受接受对立假设对立假设(影响显著影响显著)Analyze phase 分析BA0.320.310.300.290.280.270.260.250.240.23封口模一试电流数据Boxplots of 一试电流 by 封口模(means are indicated by solid circles)Two-sample T for 一试电流数据封口模 N Mean StDev SE MeanA 10 0.2917 0.0207 0.0065B
39、10 0.2522 0.0136 0.0043Difference=mu(A)-mu(B)Estimate for difference:0.0395095%lower bound for difference:0.02577T-Test of difference=0(vs):T-Value=5.04 P-Value=0.000 DF=15Boxplots of 一试电流一试电流 by 封口模封口模流水线物料、机模不变，换封口模看F/L流变化十二十二.封口模制程分析封口模制程分析两组机模结果对比：两组机模结果对比：P值小于值小于0.05接受接受对立假设对立假设(影响显著影响显著)Improv
40、e phase 改善一.来料胶盖猪咀中孔同心度制程改善行动：1.1.会同CB部生产AU袁有君QE李诗波TR万方对11516-20190胶盖立即停止生产，一起改善此模。1.2.因要保证供应生产，CB部临时决定封闭3#5#头。1.3.由C&S QE李诗波负责新模此问题的跟进。二.来料铁壳止口位平行度制程改善行动：2.1机模下模面磨损，配合松动，上模与下模平行度差。配合间隙大，磨平机模上下模铁壳面定位面减小配合间隙。Improve phase 改善 三.测量仪器改善行动.W3S改善行动NO问题负责人1胶盖啤杯士模磨损造成流高 廖家凯2磁底啤杯士模磨损造成流高廖家凯3封口模磨损造成流高张明亮成因改善行
41、动完成日期1.下模定位磨损与胶盖配合松动,2.上模猪咀定位孔平面度1.磨平上下模配合平面2.落单做下模配件20050405磁底啤杯士上下模不同心，2.啤杯士下模模芯磨损间隙太1.磨平上下模配合平面。2.更换模架线性轴承20050406封口刀定位高低不平。导柱间隙大1.磨平上模配合平面，2.更换模架导柱，20050401 Improve phase 改善0.010.020.030.040.05USLUSLProcess Capability Analysis for 铁壳止口平行USLTargetLSLMeanSample NStDev(Within)StDev(Overall)CpCPUCPL
42、CpkCpmPpPPUPPLPpkPPM USLPPM TotalPPM USLPPM TotalPPM USLPPM Total0.0500000 *0.0302667300.00489480.0053500 *1.34 *1.34 *1.23 *1.23 *0.00 0.00 *27.71 27.71 *112.80112.80Process DataPotential(Within)CapabilityOverall CapabilityObserved PerformanceExp.Within PerformanceExp.Overall PerformanceWithinOvera
43、ll0.000.020.040.060.080.10USLUSL鐵殼止口平行度USLTargetLSLMeanSample NStDev(Within)StDev(Overall)CpCPUCPLCpkCpmPpPPUPPLPpkPPM USLPPM TotalPPM USLPPM TotalPPM USLPPM Total0.0500000 *0.0426667300.01222790.0152012 *0.20 *0.20 *0.16 *0.16 *166666.67166666.67 *274346.43274346.43 *314754.16314754.16Process DataP
44、otential(Within)CapabilityOverall CapabilityObserved PerformanceExp.Within PerformanceExp.Overall PerformanceWithinOverall四四.来料铁壳止口平行度制程改善结论来料铁壳止口平行度制程改善结论铁壳止口平行度铁壳止口平行度STD0.05mmMAX改善前改善前CPK：0.20改善改善后后：CPK：1.34 Improve phase 改善0.000.020.040.060.080.100.120.14USLUSL胶盖猪咀中孔同心度USLTargetLSLMeanSample NSt
45、Dev(Within)StDev(Overall)CpCPUCPLCpkCpmPpPPUPPLPpkPPM USLPPM TotalPPM USLPPM TotalPPM USLPPM Total0.0500 *0.0632300.02078750.0226604 *-0.21 *-0.21 *-0.19 *-0.19 *700000.00700000.00 *737285.02737285.02 *719889.88719889.88Process DataPotential(Within)CapabilityOverall CapabilityObserved PerformanceExp
46、.Within PerformanceExp.Overall PerformanceWithinOverall0.030.040.050.060.070.080.090.10USLUSL来料胶盖猪咀中孔同心度制程改善USLTargetLSLMeanSample NStDev(Within)StDev(Overall)CpCPUCPLCpkCpmPpPPUPPLPpkPPM USLPPM TotalPPM USLPPM TotalPPM USLPPM Total0.0900000 *0.0652333600.01356830.0109953 *0.61 *0.61 *0.75 *0.75 *0.
47、00 0.00 *33975.7733975.77 *12146.1712146.17Process DataPotential(Within)CapabilityOverall CapabilityObserved PerformanceExp.Within PerformanceExp.Overall PerformanceWithinOverall五.来料胶盖猪咀中孔同心度制程改善结论胶盖猪咀中孔同心度STD0.05mmMAX0.000.020.040.060.080.10USLUSL鐵殼止口平行度USLTargetLSLMeanSample NStDev(Within)StDev(Ov
48、erall)CpCPUCPLCpkCpmPpPPUPPLPpkPPM USLPPM TotalPPM USLPPM TotalPPM USLPPM Total0.0500000 *0.0426667300.01222790.0152012 *0.20 *0.20 *0.16 *0.16 *166666.67166666.67 *274346.43274346.43 *314754.16314754.16Process DataPotential(Within)CapabilityOverall CapabilityObserved PerformanceExp.Within Performan
49、ceExp.Overall PerformanceWithinOverall改善前改善前CPK：-0.21改善后改善后CPK：0.61 Improve phase 改善0.380.330.280.230.18USLUSLProcess Capability Analysis for 数据PPM TotalPPM USLPPM USLPPM USLPPM USLPPM USLPPM USLPPM LSLPpkPPLPPUPpCpmCpkCPLCPUCpStDev(Overall)StDev(Within)Sample NMeanLSLTargetUSL15.7215.72 *6.28 6.28
50、*0.00 0.00 *1.39 *1.39 *1.46 *1.46 *0.01161080.0110663300.234667 *0.283000Exp.Overall PerformanceExp.Within PerformanceObserved PerformanceOverall CapabilityPotential(Within)CapabilityProcess DataWithinOverall Improve phase 改善01000000Series1Series2Series3Series1 86400 80050 86900 40890 319551986Seri
