FIELD: application of wear-resistant coats. SUBSTANCE: prior to oxidizing, regular relief is made on working surface by cutting and/or plastic deformation in form of system of grooves at ratio of depth to width of groove lying within K=0.2 to 5. EFFECT: enhanced wear resistance of friction surfaces due to forming microrelief and macrorelief on working surface ensuring optimal oil absorption, rigidity and shape of irregularities. 2 cl
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