Multi-response Optimization of WEDM Using Utility-Based Taguchi Approach

Abstract

This paper presents a utility-based Taguchi loss function strategy for the multi-response optimization of wire electrical discharge machining (WEDM) process. The utility-based Taguchi loss function strategy has been used for the multi-response optimization of WEDM with the use of cryogenically treated wire electrode. The approach utilizes a composite utility function using the Taguchi loss functions of WEDM responses in selecting the optimal parametric settings such that the overall functional utility of the product is maximized. The use of the Taguchi loss functions ensures the process is robust against the random variations. Actual experiments confirm the feasibility of the strategy over a wide range of machining conditions employed in WEDM.