RESEARCH ON THE INFLUENCE OF ELECTRICAL PARAMETERS ON MATERIAL REMOVAL RATE IN EDM OF 9XC STEEL

Abstract

This paper presents the results of an experimental study on the influence of ignition voltage (U_z) and discharge current (I_e) on machining productivity (Q), also referred to as the Material Removal Rate (MRR), during the Electrical Discharge Machining (EDM) of 9XC alloy tool steel using a CM 323C machine. By employing the orthogonal experimental design method, a mathematical regression model in the form of an exponential function was developed to represent the correlation between input parameters and output performance. The findings indicate that both (U_z) and (I_e) are directly proportional to the MRR, with the discharge current (I_e) exerting a more dominant influence. These results provide a significant scientific basis for optimizing technological parameters to enhance production efficiency when machining alloy tool steels.