FIELD: mechanical engineering. SUBSTANCE: powder metal welding material is preliminarily sintered into a ribbon, which is welded to the workpiece surface in overlapping spots by regulated current pulses. Ribbon porosity is 8 to 37%. Use can be made of several layers of ribbon with a different porosity, of different composition. Welding zone may be cooled by liquid or gas. EFFECT: facilitated procedure. 5 cl
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