Process of mass transfer of amorphous alloys under low-voltage electric spark treatment

Abstract

Theoretical and experimental studies revealing the physical essence of electric spark deposition (ESD) are presented. The mathematical model is developed for mass transfer during low-voltage ESD of the electrode material, which makes it possible to calculate the mass of material being transferred from the anode to the cathode and control this parameter by changing the initial voltage, the capacitance of the capacitor unit, and the amplitude and vibration frequency of electrode. The mathematical model is confirmed by an experimental study of erosion traces left by electrodes made of amorphous alloys based on cobalt (84KKhSR) and iron (2NSR). The regression exponential dependences of the mass of the material deposited on the cathode on the initial voltage are plotted. The discrepancy between the calculated and experimental values of the mass of material deposited on the cathode does not exceed 5%.