| 过程能力指数C_p、C_(pk)与过程性能指数P_p、P_(pk) |
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| 引用本文： | 孙顺利.过程能力指数C_p、C_(pk)与过程性能指数P_p、P_(pk)[J].价值工程,2013(31):208-209. |
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| 作者姓名： | 孙顺利 |
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| 作者单位： | 河南理工大学工业工程系,焦作454000 |
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| 摘 要： | 过程能力指数是一种广泛应用的产品质量评价工具。不同过程能力指数都有合理一面,但也都有不足之处,选用不当会产生误导。文章研究了过程能力指数C p、Cpk与过程性能指数Pp、Ppk的差别及原因,并分别给出其与不合格率的关系和相应的估计和置信区间。
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| 关 键 词： | 过程能力指数 过程性能指数 合格率 |
Process Capability Index Cp,Cpk and Process Performance Index Pp,Ppk |
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| SUN Shun-li.Process Capability Index Cp,Cpk and Process Performance Index Pp,Ppk[J].Value Engineering,2013(31):208-209. |
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| Authors: | SUN Shun-li |
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| Institution: | SUN Shun-li ( Department of Industrial Engineering , Henan Polytechnic University Jiaozuo 454000, China ) |
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| Abstract: | Process capability index is the product quality evaluation tool used widely. Different process capability index has reasonable side, but also have shortcomings. Improper use may produce misleading. This paper studied the difference between the process capability index Cp, Cpk and process performance index Pp,Ppk. This paper also gave the relationship between the unqualified rate and the process capability index, process performance index and the corresponding estimation and confidence interval. |
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| Keywords: | process capability index process performance index qualified rate |
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