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Information × Registration Number 0225U002726, (0122U002243) , R & D reports Title Investigation of the interaction of thermal, hydrodynamic and electromagnetic processes in the weld pool with the processes of energy, mass and electrical transfer in the column and anode layer of the arc plasma during TIG welding popup.stage_title Дослідження взаємодії теплових, гідродинамічних і електромагнітних процесів в зварювальній ванні з процесами енерго-, масо- і електропереносу в стовпі та анодному шарі дугової плазми при ТІГ зварюванні Head Krivtsun Ihor V., Доктор технічних наук Registration Date 01-04-2025 Organization E. O. Paton Elektric Welding Institute National Academy of scinces of Ukraine popup.description1 Determination of conditions of anode binding of arc with non-consumable electrode, namely distributed characteristics of thermal, electromagnetic and force action of arc plasma on free surface of weld pool taking into account deflection of this surface, diffusion evaporation of welded metal, and vortex electric fields which are given in a product at TIG welding with HF current modulation;establishing the laws of interaction of thermal, hydrodynamic and electromagnetic processes in the weld metal with the processes of energy, mass and electricity transfer in the plasma of the column and anode layer of the arc to determine the parameters of the modes of welding with a non-consumable electrode, which increase the depth of penetration and ensure high-quality weld formation. popup.description2 Purpose of the work: determination of the characteristics of the thermal, electrical and force interaction of the welding arc with the deformed surface of the weld pool during TIG welding at direct current and with HFI current modulation; establishment of the patterns of the influence of the welding arc on thermal, hydrodynamic and electromagnetic processes in the welded metal in order to determine the conditions that contribute to increasing the penetration ability of TIG welding. Development of technology and equipment for heat treatment of welded joints of railway and tram rails made by arc welding and for induction pressure welding of carbon and high-carbon steels using activating substances. The main research methods include theoretical studies and mathematical modeling of physical processes in the column and anode region of the welding arc; computer modeling of energy, momentum, mass and charge transfer processes in the arc plasma and in the welded metal. Metallographic methods of studying the crystal structure of the metal using light and electron microscopy, dilatometric studies with the construction of thermokinetic diagrams of metal structure formation, methods of thermoelectrometry and pyrometry, methods of mathematical and physical modeling of induction processes. Development of mathematical (computer) models of thermal, gas/hydrodynamic and electromagnetic processes in the arc discharge and in the weld pool during TIG welding are used to design optimal modes to increase welding efficiency in the E.O. Paton Institute of Electric Welding of the National Academy of Sciences of Ukraine and in the ISF (Germany). The application of the developed method and equipment for induction heat treatment will increase the reliability of welded joints of railway and tram rails, the welded joints of which are made by arc welding. This is important in the construction, repair and post-war restoration of tram tracks in the cities of Ukraine. Product Description popup.authors Abdulakh Valerii M. Antoniv Danilo Bushma Oleksandr I. Hoidenko Viktor M. Hrabin Volodymyr V. Hubatiuk Ruslan S. Demchenko Volodymyr F. Denysenko Ihor B. Kovalenko Dmytro V Krykent Ihor V. Mylashenko Nataliia V. Momot Andrii І. Pavlov Oleksii H Panteleimonov Yevhen O. Prokof'iev Oleksii S. Rymar Serhii V. Romanenko Iryna M. Semenov Oleksii P. popup.nrat_date 2025-04-01 Close