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The article provides recommendations for the modes and parameters of gas-thermal and plasma coating technologies in relation to flat friction pairs subject to uneven operational loads

The article proposes an approach to control the uniformity of wear of friction surfaces under conditions of non-uniform wear on the surface. The core of the approach is the regulation of the composition of the sprayed coating material with the addition of a strengthening additive, depending on the intensity of the wear effects. To improve the quality of the coating, a combined process of spraying the coating with its subsequent plasma reflow, as well as processing to remove residual stresses in the coating and final plasma strengthening is proposed.

This article describes application of the method of turning the cylindrical surface of the part using the flank surface of the cutting plate. The comparison of classical turning and the use of ‘back turning’ was carried out, the area of rational application was revealed and the combined use of the methods was proposed. A finite element model of the part, tool and equipment was created for calculating deformations in the system and internal stresses. A control program for part machining using a combination of both machining methods was designed.