Influence of Discrete Electromechanical Hardening on the Wear Resistance of Steels

A new way of discrete electromechanical treatment has been developed. The method of hardening a cylindrical surface is based on the creation of linear hardened zones of increased hardness using a roller tool. Analytical dependences and numeral models have been proposed for determination of contact descriptions at co-operation of instrument and detail for the electromechanical strengthening. Numerical simulations are carried out by the finite element method. As a result, the deflected modes of a surface after its treatment by the discrete electromechanical method have been obtained. The treatment provides a different geometrical layout of the locally fixed areas charts. The model of wear and method of determination of descriptions of wear as a result of experimental tests have been developed for prognostication of wearproofness. For the analysis of the influence of the tensely deformed state of a discrete surface on wearproofness the experimental tests at the discrete electromechanical strengthening have been conducted. The obtained results indicate that the wear of samples significantly depends on the slip speed. Examined electromechanical treatment samples have a high wear resistance at high slip speeds.