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Title of the article ANALYSIS OF LASER HARDENING POSSIBILITY OF TEETH OF LOADED CYLINDRICAL GEARS MADE OF STRUCTURAL STEELS
Authors

KANE Mark M., D. Sc. in Eng., Prof., Professor of the Department “Mechanical Engineering Technology”, Belarusian National Technical University, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.

DEVOINO Oleg G., D. Sc. in Eng., Prof., Head of the Applied Research Laboratory of Plasma and Laser Technologies, Research Polytechnic Institute of BNTU, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.

SHVETS Irina V., Associate Professor of the Department “Mechanical Engineering and Machine Parts”, Belarusian National Technical University, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.
In the section MECHANICAL ENGINEERING MATERIALS AND TECHNOLOGIES
Year 2025
Issue 1(70)
Pages 53–58
Type of article RAR
Index UDK 621.793
DOI https://doi.org/10.46864/1995-0470-2025-1-70-53-58
Abstract The relevance is shown for replacing expensive alloy steels, of which loaded cylindrical gears are currently made, with cheaper (up to 2.5 times) structural steels, improving the processes of hardening the teeth of loaded cylindrical gears and reducing their cost. The disadvantages of the most common methods of hardening loaded gears are presented. The possibilities of modern methods of surface hardening of metals using laser radiation are described. The main results of studying the influence of the conditions of laser hardening of 40Х (40Kh) structural steel samples by a scanning laser beam on the hardness and roughness of the sample surfaces are given. For typical operating conditions of cylindrical gears of automotive transmissions, a calculated assessment was performed for the possibility of providing the required transmission life when using 40Kh structural steel for the manufacture of gears with subsequent hardening of the teeth with a scanning laser beam.
Keywords cylindrical gears, laser with a scanning beam, laser hardening of metals, laser hardening of 40Х (40Kh) steel, deep endurance of teeth
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