Use FAHP to evaluate the quality of CNC machine tools based on multiple QCs decision model

Abstract

In response to the needs of customers and to improve the quality of the products along with rapidly changing technologies, quality evaluation of computer numerical control (CNC) machine tools is an important issue not only for manufacturers but also for customers. A multiple quality characteristics (QCs) decision model is presented in this paper to evaluate the quality of CNC machine tools by using fuzzy analytical hierarchy process (FAHP). Then, a fuzzy judgment matrix based on triangular fuzzy numbers (TFNs) is adopted to determine the relative weights of the chosen evaluation indexes. The method can take decision makers into consideration with a valuable guideline for evaluating quality. Finally, a case study is given to verify the effectiveness and practicability of the method.