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Asian Journal of Scientific Research

Year: 2008 | Volume: 1 | Issue: 5 | Page No.: 502-509
Research Article

Empirical Modeling of EDM Parameters Using Grey Relational Analysis

A. Doniavi
Department of Mechanical Engineering, Urmia University, Urmia, Iran
M. Eskandarzade
Department of Mechanical Engineering, Urmia University of Technology, Urmia, Iran
A. Abdi
Department of Mechanical Engineering, Urmia University, Urmia, Iran
A. Totonchi
Department of Mechanical Engineering, Urmia University of Technology, Urmia, Iran
Optimization of multi criteria problems is a great need of producers to product precision parts with low costs. Many methods such as Taguchi and Response Surface Methodology have been employed for optimization of EDM process. However there are few researches involve the optimization of multi-response problem in EDM process. The attempt of this paper is to optimize multiple performance characteristics of EDM process using Grey relational analysis based on Taguchi orthogonal array. The response table and response graph for each level of the machining parameters is obtained and optimal levels of machining parameters including pulse on time, discharge current, discharge voltage and duty factor are found. The multiple performance characteristics including material removal rate, electrode wear ratio and surface roughness is considered.
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