A Review on Progress in Electrical Discharge Machining and Theoretical Models

Abstract

Electrical release machining (EDM) is one of the most non-conventional machining forms. EDM process depends on the thermoelectric vitality between the work piece and a cathode. A pulse discharge to happen in a little hole between the work piece and the cathode and expels the undesirable material from the parent metal through liquefying and vaporizing. The electrode and the work piece must have electrical conductivity to generate the spark. There are different sorts of items which can be delivered by EDM such as dies and moulds. The Auto motive industry, Aerospace parts and surgical components are manufactured by EDM process. This paper focuses on dry EDM machining, EDM with powder additives, EDM in water and advanced technique to predict the EDM performance.