Optimisation of Wireedm Parameters for H11 Tool Steel using Correlation - TOPSIS

Abstract

Machining with Multi Parameter operations like Wire Electro Discharge Machining (Wire EDM) is always a difficult task. The difficulty lies in determining the optimum settings for the required outputs. This owes to the fact that the output responses rarely depend upon a single input. The output invariably is dependent upon a set of input conditions. The primary object of this paper is to determine an optimum set of parameters for machining of H11 tool steel. The experiments were designed using L16 Orthogonal Array and the results were optimized using a new technique namely CORRELATION - TOPSIS. The results have been verified with a validating experiment.