价值工程
價值工程
개치공정
VALUE ENGINEERING
2013年
31期
208-209
,共2页
过程能力指数%过程性能指数%合格率
過程能力指數%過程性能指數%閤格率
과정능력지수%과정성능지수%합격솔
process capability index%process performance index%qualified rate
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Cp、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。
過程能力指數是一種廣汎應用的產品質量評價工具。不同過程能力指數都有閤理一麵,但也都有不足之處,選用不噹會產生誤導。文章研究瞭過程能力指數Cp、Cpk與過程性能指數Pp、Ppk的差彆及原因,併分彆給齣其與不閤格率的關繫和相應的估計和置信區間。
과정능력지수시일충엄범응용적산품질량평개공구。불동과정능력지수도유합리일면,단야도유불족지처,선용불당회산생오도。문장연구료과정능력지수Cp、Cpk여과정성능지수Pp、Ppk적차별급원인,병분별급출기여불합격솔적관계화상응적고계화치신구간。
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.