Recent Trends in Electrical Machines and Drives ISSN: 3139-2067 (Online)

Abstract

Electrical discharge machining, also known as spark erosion machining, is a type of machining that falls under the category of thermal machining. It is primarily used as a method for the production of a wide variety of constantly shifting geometries and is frequently carried out as a unit job or in small batches. The fundamental idea behind the Electrical Discharge Machining (EDM) process is to create out of metals that have been altered by the abrupt halting of the electron beam [3] by the solid metal surfaces of the anode. This is the primary function of the procedure. The temperature approaches the boiling point in the section of the anode that is exposed to the direct electrical pulse. Even in the event of a medium-long pulse, the rate of temperature increase is still in the tens of millions of degrees per second range, which indicates that an explosive process is being dealt with. In this study, a combined optimization strategy is utilised to estimate the maximum metal removal rate (MRR), the lowest tool wear rate (TWR), the surface roughness (SR), and the overcut (OC) produced by electrical discharge machining (EDM). [5] Considered here are the critical input parameters voltage (V), pulse on time (Ton), pulse off time (Toff), and current (I). 

Keywords: Electro discharge machining (EDM), Process parametes, Performance parameters, Optimization, wire cut EDM.