The Influence of New Kinematics of the Rolling Roller on the Quality of the Hardened Layer Under Surface Plastic Deformation

A new method of surface plastic deformation of the outer cylindrical surfaces of machine parts is considered. In this method, the deforming element of the tool is an indenter with two working profile radii, and an additional rotary motion is imparted to the tool about the axis passing through the plane connecting the two rolls and perpendicular to the axis of the workpiece. The influence of the kinematics of deformation on the quality characteristics of the surface layer of the hardened parts is studied: roughness, residual stresses, depth of hardening, hardness and microhardness. The efficiency of hardening by a two-radial roller compared to the deformation by a single-radial roller is established.

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