Multi-process capability evaluation by using fuzzy inference under price consideration

Autor: Liu Chang-Yu, 劉昌育
Rok vydání: 2012
Druh dokumentu: 學位論文 ; thesis
Popis: 100
Process yield reflect the strengths and weaknesses of process capability. Through inspection of a product’s process, it is possible to determine whether or not certain quality standards have been maintained and if customer requirements have been met. Process capability indices such as:Cp、Cpk、Cpm、Cpmk and Cpp have all been widely adopted and are frequently used throughout the industry. By obtaining the values of these various indices, we can gain insight into the quality of the product and its process, as well as effectively determine whether or not any flaws are present in the product or the process. The process capability index used in this study the index, which is an incapability index that is capable of pointing out inaccuracies and imprecisions in a process. However, the process capability index cannot be directly used to evaluate or analyze the process capabilities of multiple processes. Therefore, this study will evaluate process capability levels using fuzzy inference combined with the process capability index through a method of pairing and then comparing, thereby providing a means for an even more objective process capability assessment. For the customer, besides having certain quality requirements, cost is also a very important factor. Therefore, this study will include a customer cost consideration index and will verify the feasibility of the described inference method through actual examples.
Databáze: Networked Digital Library of Theses & Dissertations