X-R控制图M岗位/产品管制特性规格值上限下限组数25子组容量1分析人产品名称抽样周期其它需说明事项组数12345678910111213141516171819202122232425常数日期均值时间E2影响因素变化说明X67767472767470727073747370727574706274788080727570X=72.9200d2R——9224242231132314812420835R=3.6250D4MM单值图管制限上限23.1869中心20.616下限18.0451制程σ=3.21365Cp=不存在Cpk=7.564能力RMσ=3.87212Pp=不存在Ppk=6.277极差图管制限上限3.1581中心0.9667下限0计算XUCL14.003.163.163.163.163.163.163.163.163.163.163.163.163.163.163.163.163.163.163.163.163.163.163.163.163.16极差图分析2出现超管制限的点12.00110.00极R8.000.970.970.970.970.970.970.970.970.970.970.970.970.970.970.970.970.970.970.970.970.970.970.970.970.971差6.00图24.00LCL2.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.0012345678910111213141516171819202122232425均值图分析90.00UCL80.0023.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.1923.19出现超管制限的点70.002σ22.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.3322.33出现连续9点在中心同一侧60.00均出现连续6点呈递增/减1σ50.0021.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.4721.47值X40.0020.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.6220.62出现连续14个相邻点上下交替图30.001σ19.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.7619.76出现3点有2点落在同侧B区外20.002σ18.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.9018.90出现5点有4点落在同侧C区外10.00LCL0.0018.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.0518.05出现连续15点在C区内12345678910111213141516171819202122232425出现连续8点不在C区1、Cp>Pp、Cpk>Ppk为正常，表示总体标准差大于组内标准差。Cpk：过程不受控,CpK值无意过程能力及2、Cp与Pp、Cpk与Ppk相差的大小，反映子组间波动大小；最终Ppk：过程不受控,Ppk值无意性能判定3、Cp与Cpk差异的大小,反映实际过程中心与规格中心偏离的