Plasma-Liquid Welding of Plates from Electrical Steel

The possibility of using plasma-liquid welding with direct current electric discharge at atmospheric pressure to manufacture products from electrical steel E-310 is studied. The samples are welded by immersing a metallic cathode (the welded parts) into a liquid (non-metallic) anode. The electrophysical parameters of the welding process are determined, including the current-voltage characteristic and the current and voltage fluctuations. The results of the analysis of the morphology and of the microhardness of the weld are presented. The prospects of plasma-liquid welding of parts from electrical steel E-310 are demonstrated at an appropriately chosen mode of the variable resistor.