Theoretical and Experimental Investigation of the Relative Effect of Voltage on MRR for Brass CZ131 Alloy Machined by Electrochemical Machine

Electrochemical Machining (ECM) has established itself as one of the major alternatives to conventional methods for machining hard materials and complex contours without the residual stresses and tool wear. Studies on Material Removal Rate (MRR) are of utmost importance in ECM, since it is one of the determining factors in the process decisions. This paper deals with a comparative study of calculation for MRR on theoretical as well as practical basis, which is given in tabular format with graphical representation. Two parameters were chosen as process variables: feed rate and voltage. Sodium Chloride (NaCl) solution was taken as electrolyte (250 g/L) and IEG was 0.5 mm. The said experimentation was carried out at Micromachining Cell, MITS, Gwalior, India in the month of August 2011.