Abstract Scope |
Electrical discharge machining is used for machining electrically conducting material by thermal energy, which leads to local heating followed by melting and evaporation of the work surface, resulting in small craters. Complex geometries involve different shapes, and tool electrode plays a major role in reproducing the shape on component.
The aim of the current study is to explore the effects of copper tool electrode shapes along with other main EDM process factors on the basic machining performance, during EDM of Inconel 718. The different cross sections of electrode used in the work include circular, square and hexagonal.
The effect of different tool electrode geometry (TEG) (circular, square and hexagonal), pulse current (Ip), pulse-on time, gap voltage on material removal rate, tool wear rate, and surface roughness have been studied. L9 (34) orthogonal array was used to perform experimental runs, and the results were analysed using Regression Analysis.
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