Influence of Process Parameters and Electrode Shape Configuration On Material Removal Rate, Surface Roughness And Electrode Wear In Die Sinking EDM: A Review
نویسنده
چکیده
Electrical discharge machining (EDM) is a non conventional manufacturing process which is used for shaping hard metals and forming deep complex shaped profiles by arc erosion in all kinds of electro-conductive materials. The objective of this paper is to study the influence of process parameters and electrode shape configuration on the machining characteristics such as surface quality, material removal rate and electrode wear. This review is based on various study carried on this field by various researchers. In this study we found better machining performance is obtained generally with the electrode as the cathode and the work-piece as an anode. In this review we observe that for high MRR main process parameters are peak current, pulse on time ,pulse off time, whereas for electrode wear are mainly influenced by peak current and pulse on time. Surface quality is mainly influenced by peak current. As far as tool shape configuration concerned best tool shape for higher MRR and lower TWR is circular, followed by square, triangular, rectangular, and diamond cross sections. Keywords— EDM, electro-conductive materials, electrode shape configuration, Material Removal Rate (MRR),Tool Wear Ratio(TWR),Surface roughness(SR).
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