ABOUT SIZES CUTTING WEDGEANDCONTACTVOLTAGEATITSFRONT ANDBACK SURFACES
The article discusses the nature and distribution of contact pressure on the front and rear surfaces of the cutting wedge (CW) given the radius of the rounding of the cutting edge ( ρ ) which determines the size of CW together with the front and rear corner cutter. The kinetics of the radius ρ cutters from superhard materials in the processing of hardened steels. Determined pair correlations between actual slice thickness a and ρ <sub>st</sub> and providing the greatest strength and ρ <sub>d</sub> of CW, the corresponding maximum tool life for fine and finishing hard materials, including hardened steels and superalloys. Given the magnitude of normal forces, friction forces and specific loads at run-cutter turning part of a composite 01 hardened steel HV1G.The character of changes in the normal and shear stresses with increasing cutting speed and feed per revolution.