FIELD: processes for electric-contact welding and surfacing, possibly strengthening and restoring worn parts by means of metallic band.
SUBSTANCE: method comprises steps of preliminarily forming relief in the form of alternating ridges and recesses on side of additive band turned to welded-on part; forming said relief across direction of rolling out part by means of welding-on roller; securing additive band to part and welding said band to part by passing electric current pulses between welding on roller and part through additive band; partially filling recesses with powder material at welding-on band.
EFFECT: improved strength of welded joint of metallic coating with base.
2 dwg, 2 ex
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