Effect of electrolytic hydrogenation on the process of cutting of carbon steels

We study the effects of preliminary electrolytic hydrogenation of 20 and U8 carbon steels and a cutting tool on some parameters of the process of orthogonal cutting. The power consumption observed in the process of cutting of 20 and U8 steels (the forceP z ) decreases in the presence of hydrogen. This effect is maximum if we hydrogenate the blanks. Hydrogen also decreases the bulk characteristics of the process of deformation of steel (surface roughnessR a and chip shrinkagek) and localizes the cutting zone. Its influence on the strain hardening of materials in the cutting zone is ambiguous. Thus, for 20 steel, cold-hardening is intensified but, for U8 steel, becomes weaker. We analyze the regularities of the behavior of these parameters from the viewpoint of the influence of hydrogen on the deformation and fracture processes in steels.