FIELD: metallurgy.
SUBSTANCE: invention refers to hard alloys surface hardening by electro-blasting alloying, particularly to procedure for tungsten-cobalt hard alloyed surface hardening of drilling and mine cutting tools. The procedure consists in pulse radiation of treated surface with an ion component of a plasma jet. As a source of the ion component there are used products of aluminium foil electro-blasting. Radiation is carried out in a pulse mode facilitating intensity of effect onto treated surface in the interval of 5.0÷7.6 GWt/m2.
EFFECT: increased surface hardness, wear resistance and operational resistance of hard alloys of TC (tungsten-cobalt) group.
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