However, when the system is being tested and is not centered between the limits of specifications, it may provide a misleading impression. You can test how centered the system is by comparing Cp and Cpk. When the process is on its target, these two will be equal. However, when there is...
processcapability(cp,cpk,ppk)资料.ppt,Two Types of Processes All processes have: Natural (random) variability = due to common causes The Two Causes of Variation Common Causes: Causes that are implemented in the process due to the design of the process, a
开通VIP Process Capability (Cp / Cpk / Pp / Ppk) Global Training Material Creator : Global Mechanics Process Manager Function : Mechanics Approver : Gary Bradley / Global Process Team Document ID : DMT00018-EN Version / Status : / Approved Location : Notes : \\…\ NMP \ DOCMANR4 \ PCP...
Conservative estimate for Sigma_Bench based on Cpk = 1.0 (assume both sides have PPM = 1350 - centered process!). Hence, Total PPM = 2700 => Sigma_Bench = 2.78. CONCLUSION: Cp * 3 gives you sigma level on one side (Z_LSL and Z_USL). ...
(statistical distribution curve) and a statistic with the minimum, maximumvalue,themean, standard deviation,Cpand Cpkvalues. sikora.net sikora.net 检测数据以图形和数字方式显示于 15 寸的彩色触摸屏上, 该系统还可提供与长度相关的所有检测数据趋势图 (单一测量数据的分布图),以及统计学处理结果(最小值,...