Comparative evaluation of the electrical erosion resistance of materials in liquid and gaseous media

The results of experimental studies and a comparative analysis of changes in the electroerosive resistance of materials during electroerosive machining in liquid and gaseous working media are represented. Based on experimental data, the mathematical models of the dependence of electroerosive resistance on the thermophysical properties of materials for the conditions of both media were obtained. It is established that when replacing the liquid interelectrode medium with a gaseous one, which is observed during electroerosion stitching of deep cavities and holes, the degree of influence of the heat capacity, density, thermal conductivity and board temperature of the material on its electrical erosion resistance changes reiteratedly.

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