Actual Problems in Machine Building 2021 Vol.8 N3-4

Actual Problems in Machine Building. Vol. 8. N 3-4. 2021 Innovative Technologies in Mechanical Engineering ____________________________________________________________________ 56 IMPLEMENTATION OF HIGH-ENERGY HEATING BY HIGH-FREQUENCY CURRENTS IN HYBRID PROCESSING CONDITIONS Skeeba V.Yu. , Ph.D. (Engineering), Associate Professor, e-mail: skiba@corp.nstu.ru Ivancivsky V.V. , D.Sc. (Engineering), Associate Professor, e-mail: ivancivskij@corp.nstu.ru Zverev E.A. , Ph.D. (Engineering), Associate Professor, e-mail: egor_z@ngs.ru Titova K.A. , Ph.D. student, Assistant, e-mail: krispars@yandex.ru Novosibirsk State Technical University, 20 Prospekt K. Marksa, Novosibirsk, 630073, Russian Federation Abstract The paper provides a rationale for the advantages of combining mechanical and surface heat treatment, which makes it possible to eliminate most of the disadvantages inherent in single technologies, as well as to achieve the required results with greater efficiency than with separate processing. It is proposed to carry out high-energy heating with high-frequency currents, while using the integral temperature-time characteristic as the main parameter when assigning surface hardening modes. Dependences of this characteristic with other processing parameters are revealed. It is empirically proven that when using a volumetric heat treatment scheme with a hardened layer depth of 0.5 mm, the processing performance indicators are comparable to those of energy consumption. When the hardened layer depth reaches 0.7 mm, i.e. the boundaries of the hot depth of penetration of current into the metal, energy costs are reduced when certain productivity is achieved. Keywords High-energy heating by high-frequency currents, hybrid equipment, surface hardening, machining Funding The research was funded by RFBR and Novosibirsk region, project number 20-48-540016.