FIELD: metallurgy.
SUBSTANCE: procedure consists in pulse radiation of treated surface with ions of plasma jet generated by products of electric explosion of conductor in form of carbon-graphite fibre or aluminium foil in pulse mode. The procedure is carried out by simultaneous alloying surface of a tool with powders of chemical substances or their compounds placed in explosion area. Also, there is maintained intensity of effecting surface within the range 5.0-7.6 GWt/m2.
EFFECT: increased operational resistance of hard alloy.
4 cl, 2 ex
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