过程能力分析均值极差(X-R)控制图公司徽标双边控制限型日期2008/6/25地址工厂重庆??有限公司部门过程信息栏统计特性描述数据值零件零件号箱体零件描述数据重要趋势X图R图样本容量100图纸编号工程更改水平递增趋势点数最大长度22工程规范下限(LSL)71.9450模具模具编号模腔数递增链数84规格中线72.0000描述专机单位mm递减趋势点数最大长度57工程规范上限(USL)71.9700尺寸尺寸规格72.000上公差-0.030下公差0.055控制限UCLx71.962AVERx71.958LCLx71.954递减链数95总和7,195.8240下公差限71.945规格中线72.000上公差限71.970UCLr0.013AVERr0.006LCLr0.000超出控制线点数00读数均值(X)71.9582最大值71.9620均值(X-图)最小值71.955071.9640低于下控制线点数(X)0高于上控制线点数(X)071.9620极差均值R0.0058D值(n=4)2.059071.96002能力指数上限(CPU)1.382171.9580能力指数下限(CPL)1.5560稳定过程能力指数(C)1.4690p值稳定过程能力指数(C)1.3821均71.9560pk能力比率(CR)2.885971.9540标准偏差（n-1)0.0023标准偏差(n)0.002371.9520变异(n-1)0.0000变异(n)0.000071.9500性能指数(P)1.8282P性能比率(PR)0.547071.9480性能指数(P)1.7200pk12345678910111213141516171819202122232425正态分布45数据点42DataValuesUCLxLCLxAverageX数40频极差(R-图)350.0140300.0120240.010025200.008020差极140.0060150.0040100.002050.0000000000012345678910111213141516171819202122232425066666666666极差值99999999999RValueUCLrLCLrAverageR1.1.1.1.1.1.1.1.1.1.1.77777777777正态分布曲线数据区间控制图表现：数据无明显异常，请注意观察其他可能出现的非随即情况。过程能力分析：过程能力充足！n12345678910111213141516171819202122232425171.960071.962071.960071.960071.962071.962071.960071.960071.960071.960071.960071.960071.960071.960071.960071.960071.962071.960071.962071.962071.962071.962071.960071.960071.9600271.955071.958071.955071.955071.955071.958071.955071.955071.958071.958071.955071.958071.955071.958071.958071.955071.955071.958071.958071.958071.955071.955071.955071.955071.9580371.958071.955071.958071.958071.958071.955071.958071.958071.958071.955071.958071.955071.958071.955071.955071.958071.958071.955071.958071.955071.958071.958071.958071.958071.9550471.962071.958071.958071.962071.958071.962071.958071.958071.955071.958071.962071.958071.958071.960071.958071.962071.958071.958071.960071.958071.962071.958071.958071.960071.9580均值71.958871.958371.957871.958871.958371.959371.957871.957871.957871.957871.958871.957871.957871.958371.957871.958871.958371.957871.959571.958371.959371.958