用过程能力指标建立DMAIC过程执行模型

IF 0.9 Q3 ENGINEERING, MULTIDISCIPLINARY
Kuen-Suan Chen, Chin-Chia Liu, Chi-Han Chen, Chun-Min Yu
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引用次数: 0

摘要

六西格玛方法和过程能力指标都是工业界常用的工具。过程工程师可以遵循六西格玛方法的“定义”、“测量”、“分析”、“改进”、“控制”(DMAIC)五个改进步骤,旨在改进和提高过程质量。然而,这五个改进步骤都没有一个明确的对应方法。本文认为过程能力指标不仅是工业界广泛使用的过程质量评价工具,也是企业内部工程师采用的过程质量评价与分析工具。因此,本文采用过程能力指标与统计检验相结合的方法,对六西格玛方法的五个改进步骤DMAIC建立了执行模型。首先,本文从成品率的概念出发,推导了产品的过程能力指标值与个别质量特征的过程能力指标值之间的关系,讨论了六西格玛质量水平的定义及其与过程能力指标的关系。然后,根据这些结果,开发了六西格玛方法的五种改进执行模型,作为行业过程工程师推动六西格玛项目绩效的参考。本文提出的方法采用了多种正常过程,并结合了工业界常用的六西格玛方法和过程能力指标。同时兼顾了理论贡献和行业接受的优势。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Using Process Capability Indices to Develop the Execution Models of DMAIC Process
The method of six-sigma and the index of process capability are both commonly used tools in the industrial community. Process engineers can follow five improvement steps of the six-sigma method, including “define”, “measure”, “analyze”, “improve”, and “control” (DMAIC), aiming to improve and enhance the process quality. However, none of these five improvement steps have a clear corresponding approach. This paper considered process capability indices not only a process quality evaluation tool widely used in the industrial community but also a process quality evaluation and analysis tool adopted by internal engineers. Therefore, this paper applied the method integrating process capability indices and statistical testing to develop execution models for the five improvement steps, DMAIC, of the six-sigma method. First, this paper, based on the concept of yield, not only deduced the relationship between the required value of the process capability index for the product and the process capability index value of the individual quality characteristic but also discussed the definition of the quality level of six-sigma as well as its relationship with the process capability index. Next, according to these results, five improvement execution models of the six-sigma method were developed and served as a reference for the process engineers in the industry to promote the performance of the six-sigma project. The proposed method in this paper applied various normal processes and combined the six-sigma method and process capability indices, both of which are tools commonly used in the industrial community. It also has taken into account the advantages of theoretical contribution and industrial acceptance.
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来源期刊
CiteScore
1.70
自引率
25.00%
发文量
26
期刊介绍: IJRQSE is a refereed journal focusing on both the theoretical and practical aspects of reliability, quality, and safety in engineering. The journal is intended to cover a broad spectrum of issues in manufacturing, computing, software, aerospace, control, nuclear systems, power systems, communication systems, and electronics. Papers are sought in the theoretical domain as well as in such practical fields as industry and laboratory research. The journal is published quarterly, March, June, September and December. It is intended to bridge the gap between the theoretical experts and practitioners in the academic, scientific, government, and business communities.
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