FIELD: restoring or strengthening worn parts by electric arc surfacing, manufacture of new parts operating in condition of variable dynamic loads combined with high wear and corrosion.
SUBSTANCE: method comprises steps of forming at least partial coating at least of one layer on part by electric arc surfacing with use of consumable electrode; forming said layer of alternating preliminarily set at least in one direction zones of metals with different linear expansion factors. At least one zone of said layer includes metal whose linear expansion factor is less than that of main metal of part. Such layer is formed by filling preliminarily formed grooves with metal or by applying beads.
EFFECT: enhanced operational properties of parts due to creation of in part designed favorable fields of residual stresses.
10 cl, 17 dwg, 7 ex
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