Author(s)

Kuldeep Ojha, R. K. Garg, K. K. Singh

Department of Industrial and Production Engineering, Dr B. R. Ambedkar National Institute of Technology, Jalandhar-144011, Punjab, India.
Department of Mechanical Engineering & Mining Machinery Engineering, Indian School of Mines (ISM), Dhanbad-826004, Jharkhand, India.

In this article, parametric optimization for material removal rate (MRR) and tool wear rate (TWR) study on the powder mixed electrical discharge machining (PMEDM) of EN-8 steel has been carried out. Response surface methodology (RSM) has been used to plan and analyze the experiments. Average current, duty cycle, angle of electrode and concentration of chromium powder added into dielectric fluid of EDM were chosen as process parameters to study the PMEDM performance in terms of MRR and TWR. Experiments have been performed on newly designed experimental setup developed in laboratory. Most important parameters affecting selected performance measures have been identified and effects of their variations have been observed.

EDM; PMEDM; MRR; TWR; Optimization

K. Ojha, R. Garg and K. Singh, "Parametric Optimization of PMEDM Process using Chromium Powder Mixed Dielectric and Triangular Shape Electrodes," Journal of Minerals and Materials Characterization and Engineering, Vol. 10 No. 11, 2011, pp. 1087-1102. doi: 10.4236/jmmce.2011.1011083.