Effect of current pulse duration on the thickness and roughness of electrospark coatings

Abstract

The effect of the current pulse time on the roughness and surface continuity of the electrospark coating is studied. It is established that in the coating mode: the current pulse time is 2•10–5 s, the frequency is 250 Hz, the stress is 50 V, the roughness parameter is Rz = 80 µm, the continuity is high, but the disadvantage is the low productivity of the process.