15-11-2014, 11:28 AM
Abstracts: The objective of the present work is to calculate the Material Removal Rate (MRR) during a single spark WIRE-EDM process using finite element analysis in ANSYS 11.0 software. The material used is Inconel 625. Wire Electrical Discharge Machining (WIRE-EDM ) is a thermoelectric metal removal process which erodes material from the work piece by a series of discrete sparks between the metal wire electrode and the workpiece, immersed in a dielectric liquid medium. The spark discharges generated between the electrode and the workpiece result in complex two dimensional and three dimensional shapes along a numerically controlled path. The purpose of WIRE-EDM is to achieve better accuracy and stability while dealing with small sized workpieces. Finite Element Method (FEM) modelling is a computer-aided technique for finding approximate solutions of partial differential equations and integral equations. Keywords: WIRE-EDM , MRR, ANSYS, FEM