FIELD: technological processes.
SUBSTANCE: invention relates to a method of producing a wear-resistant coating. Proposed method comprises application of powder material on machined surface and subsequent laser facing. Additionally, the applied coating is re-melted by continuous laser radiation at depth of 100…400 mcm at laser radiation power 2.0…2.3 kW, at speed of laser beam movement along surfaced surface 10…15 mm/s, with spot diameter 6…8 mm to form a finely dispersed dendrite-cellular structure. Melted coating by laser radiation is carried out using a multichannel laser with overlapping tracks 10…15 %.
EFFECT: increased abrasive wear resistance of built-up coating.
1 cl, 1 dwg, 3 tbl, 3 ex
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