A REVIEW ON MACHINING BY ELECTROCHEMICAL DISCHARGE PHENOMENA
Keywords:
ECDM, brittle, surface integrity, voltage, surface roughness, material.Abstract
Non-conducting material having high strength, brittle nature widely used in the industries due to superior properties such as high hardness, excellent insulation, high wear resistance possessed by the material. Due to these properties, machining of these material by traditional processes are very difficult. This led the researchers to develop the alternative process, Electrochemical discharge machining (ECDM) is an advance machining process, can machine such materials with accuracy. The input parameters such as voltage, electrolyte concentration, feed rate etc. governs the process performance parameters like material removal rate, overcut, surface irregularity and surface integrity of machined surface. The process works on the principle of electrochemical discharge, the exact mechanism of machining is not well understood. The paper presents the review past research carried out in ECDM process.
