FIELD: reconditioning of worn parts and hardening of new parts. SUBSTANCE: method includes rotation of part with its simultaneous longitudinal motion to build up a coating layer over multistart spiral by successive building up of spiral weld beads. Each next weld bead is built up after removal of slag crust from the previous bead with some displacement. Spiral pitch is multiple to two or more spacings of welding up. EFFECT: improved quality of built-up deposition, uniform thickness of coating. 14 dwg
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