Topsis Based Taguchi Optimization of Machining Characteristics in End Milling Operation of Kevlar-Epoxy Composites

Abstract

In this study, the surface quality of an end milling operation on Kevlar-epoxy composite material has been investigated. This article presents a study on design of experiment for optimized cutting parameters in the end milling operation of Kevlarepoxy composites using TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) based Taguchi method. In this paper, quality characteristics such as surface roughness and delamination have been selected for evaluation of the milling performance. Four major control parameters namely, feed rate, depth of cut, slope of the cut, and spindle speed have been analyzed for experimentation. From the application of combined TOPSIS-Taguchi method, the optimal combination levels of milling parameters are obtained. It was found that lower feed rate, lower depth of cut, higher slope of cut, and higher spindle speed is desirable for better surface finish.