Advanced Tolerancing Based on Product Performance by Using Statistical Tolerance Index Cpk and Cc
Advanced Tolerancing Based on Product Performance by Using Statistical Tolerance Index Cpk and Cc
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使用统计公差指数 Cpk 和 Cc 基于产品性能的高级公差
DOI：
10.4028/www.scientific.net/kem.523-524.781
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
A. Otsuka
中科院分区：
文献类型：
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作者：
A. Otsuka
本文利用统计公差指标Cpk和Cc来展示针对量产的性能设计的改进。近年来，人们对产品性能的要求越来越高。与此同时，制造业的精密加工和测量也在不断发展。为了满足消费者在产品性能方面的需求，我们提出了使用统计公差指数（STI）的先进公差方法。在本研究中，假设每个产品的性能可以量化并且取决于唯一的功能维度。还假设每个加工零件的尺寸分布遵循正态分布。因此，可以对批量生产的性能进行统计量化。为了控制性能，我们引入了由过程能力限制组成的STI。说到底，性能设计就是计算STI，以满足性能需求。性能设计存在两个问题。一种是STI的综合，另一种是STI的分配。这些问题就像传统的公差合成和分配问题一样。在本文中，前一个问题是用代数形式表述的。
In this paper, the improvement of performance design for mass production are shown by using statistical tolerance index Cpk and Cc. Recently, the demand for product performance is getting higher. Meanwhile, precision machining and measurement are also developing in manufacturing industry. To satisfy consumer in terms of product performance, we have proposed advanced tolerancing method by using statistical tolerance index (STI). In this study, it is assumed that the performance of each product can be quantified and depends on the only functional dimension. It is also assumed that the dimension distribution of each machined part follows normal distribution. Consequently, performance of mass production can be quantified statistically. To control performance, we introduce STI which is composed of process capability limitation. After all, performance design is to calculate STI so as to satisfy the demand for performance. There are two problems in performance design. One is a synthesis of STI and another is an allocation of STI. These problems are just like the conventional tolerance synthesis and allocation problems. In this paper, the former problem is formulated algebraically.