FIELD: process engineering.
SUBSTANCE: invention relates to worn-out surface recovery or hardening. Filler metal from filler wire is welded by passing electric current pulses between roller electrode and part. Filler material is made up of bundle consisting of different-composition wires arranged at least in two layers. Layer facing recovered part is made from wire with good bondability with part. Layer facing roller electrode is made from wire with chemical composition required for coat.
EFFECT: expanded properties of coats, increased thickness of coat and higher adhesion of wires.
1 dwg, 1 ex
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