FIELD: process engineering.
SUBSTANCE: invention relates to surface thermal hardening of the part surface layer. Proposed process comprises heating of article working surface by argon plasma direct action arc at inverse polarity current. Said heating is performed in the chamber that isolates the plasma arc and article working surface processing zone from contact with atmosphere to expand cathode spot scanning over article surface.
EFFECT: simplified process, higher surface quality.
1 ex, 3 dwg
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