INVESTIGATION AND OPTIMIZATION OF EDM PERFORMANCE MEASURES USING EMPIRICAL DATA ANALYSIS

Kalyani S. Kanekar, Diwesh B. Meshram

Abstract: In this paper research is aimed to investigate and optimization of EDM performance measures in order to find out best ideal EDM electrode having higher material removal rate, improved surface finish and lower electrode wear rate. For this four EDM electrodes of four different materials (viz. Gr, Cu, Br and Al) are developed by three different manufacturing methodologies. Electrode design is very time consuming process and done interactively using CAD system. In this research work Vertical Milling Machine, Net Shape Casting and Die Sinking EDM do EDM electrodes fabrication. After the electrode Fabrication testing of electrodes is done on Die Sinking EDM. For optimization two different advanced methods of optimization SAW & TOPSIS are used for analysis of EDM performance measures and to predict optimal choice of each EDM electrode. The analysis of both optimization methods reveals Copper is best EDM electrode followed by Brass, Aluminium and Graphite. Experimental results are provided to verify this approach

Keywords: EDM, MRR, EWR, SR, OPTIMIZATION, SAW, TOPSIS

DOI: https://doi.org/10.15623/ijret.2015.0408037