Describes research directions in the area of high-frequency currents metal treatment and contains samples of technologies and equipment, developed and implemented to production by Interdisciplinary Laboratory «Modern Electrotechmologies» of Academic and Research Center «High-Frequency Electrotechics» of Faculty of Industrial Automation and Electrical Engineering of Saint Petersburg Electrotechnical University in co-operation with «High-Frequency Electrotechnologies Research-and-Development, Education, and Manufacture Center» (INTERM LLC). Main areas of activity are: development of high-power high-frequency transistor convertors; development of automated CNC machines for induction thermohardening of complex-shaped parts, e.g. operating surfaces of railroad automatic couplers, which are scanned first with laser probe to build inductor movement trajectory; development of induction brazing units, e.g. for precision vacuum brazing of multiple beryllium plates on inner chamber surface of ITER project TOKAMAK section; development of technologies and equipmentр for large-sized parts shrink fitting, induction annealing of weld seams, flat welded steel and aluminum decks leveling, pulse thermomechanical treatment of steel parts surfaces, oil heating and many other directions. Programmable control systems are widely used for hardening machines of automatic machines, which allow automatic hardening of high frequency currents of a large range of machine-building parts, additive technologies are introduced for the production of some elements of induction plants, sprayers, current transformers, matching devices, etc. Researches in several directions resulted in equipment producing and commissioning, several resulted in Research-and-Development studies and prototypes building, several still require some researches to be done, Bachelor and Master programs require modernization. All this suggests that preparations are underway for the fourth industrial revolution in the field of induction technologies, and this area will be in demand in the near future, therefore training of highly qualified personnel at a new level plays a special role.

Authors: S. V. Dzliev

Direction: Electrical Engineering

Keywords: Electrotechnologies, induction heating, metals electromagnetic treatment, oil heating, transistor frequency converters, additive technologies, fourth industrial revolution

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