TECHNOLOGY OF ELECTROMECHANICAL HARDENING OF SURFACES OF WORKING BODIES OF EARTH-MOVING MACHINES
Keywords:
bulldozer, blade, blades, wear, electromechanical hardening, surface hardness, strength current, regression equation, current density, processing speed, contact surfaceAbstract
The durability of the elements of earth-moving machines largely depends on the wear resistance of the working surfaces, which is provided by various methods of hardening. Based on the operating conditions of the working bodies and the analysis of the methods of the classical technology of heat treatment of surfaces, a technology for hardening surfaces using electromechanical processing is proposed. On the basis of theoretical and experimental studies, technological modes of processing are substantiated and a regression equation of the influence of modes on the hardness of the working surface is derived.
References
Ministry of Water Resources of the Republic of Uzbekistan, “Ministry of Water Resources of the Republic of Uzbekistan,” Ministry of Water Resources of the Republic of Uzbekistan, May 22, 2022. https://water.gov.uz/en (accessed Jun. 12, 2022).
Concept for the development of the water sector of the Republic of Uzbekistan for 2020-2030. Uzbekistan, 2020, pp. 1–2.
Черноиванов В.И. и др. Ресурсосбережения при технической эксплуатации сельскохозяйственной техники. – М.:Росинфоагротех, 2002. – 780 с.
Йўлдошев Ш.У ва бошқалар. Қишлоқ хўжалиги ва мелиоратив машиналари деталларининг ресурсини тиклаш ва ейилишга чидамлилигини ошириш технологиясини модернизациялаш» ҚХА-3-029 сонли грант бўйича якуний ҳисобот. – Тошкент, 2014 й.
W. Cheng, F. Dai, S. Huang, and X. Chen, “Plastic deformation behavior of 316 stainless steel subjected to multiple laser shock imprinting impacts,” Opt. Laser Technol., vol. 153, 2022, doi: 10.1016/j.optlastec.2022.108201
Y. Zhang et al., “Microstructures and rolling contact fatigue behaviors of 17Cr2Ni2MoVNb steel under combined ultrasonic surface rolling and shot peening,” Int. J. Fatigue, vol. 141, 2020, doi: 10.1016/j.ijfatigue.2020.105867
X. Hu et al., “Rolling contact fatigue behaviors of 25CrNi2MoV steel combined treated by discrete laser surface hardening and ultrasonic surface rolling,” Opt. Laser Technol., vol. 155, 2022, doi: 10.1016/j.optlastec.2022.108370
K. S. Chandravathi et al., “Effect of isothermal heat treatment on microstructure and mechanical properties of Reduced Activation Ferritic Martensitic steel,” J. Nucl. Mater., vol. 435, no. 1–3, pp. 128–136, 2013, doi: 10.1016/j.jnucmat.2012.12.042
Laxtin Yu.M. Metallovedenie i termicheskaya obrabotka metallov. – Moskva, Metallurgiya, 1984 y. – 360 b.
Технология ремонта машин/ Под ред. проф.А.А.Пучина. – М.:Колос, 2007. –488 с.
Аскинази Б.М. Упрочнение и восстановление деталей машин электромеханической обработкой.-3-е изд., перераб. и доп. – М.: Машиностроение, 1989. – 200 с.
