Justification of the Application of Resource-Saving Technology for the Restoration of Metal-Intensive Rear Semi-Axles of Trucks Using Hot Plastic Deformation

Konstantin P. Kolotyrin, Sergey A. Bogatyrev, Yuri Yu. Kostyukhin, Diana Yu. Savon and Alexey I. Shinkevich
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Konstantin P. Kolotyrin: Department of Project Management, Saratov State Vavilov Agrarian University, 410003 Saratov, Russia
Sergey A. Bogatyrev: Department of Project Management, Saratov State Vavilov Agrarian University, 410003 Saratov, Russia
Yuri Yu. Kostyukhin: Department of Industrial Management, National University of Science and Technology “MIS&S”, 119049 Moscow, Russia
Diana Yu. Savon: Department of Industrial Management, National University of Science and Technology “MIS&S”, 119049 Moscow, Russia
Alexey I. Shinkevich: Department of Logistics and Management, Kazan National Research Technological University, 420015 Kazan, Russia

Sustainability, 2021, vol. 14, issue 1, 1-11

Abstract: The article is devoted to the substantiation of technological foundations for the restoration of extremely worn-out, metal-consuming, and resource-consuming parts, in a method consisting of applying a compensating metal wear with subsequent plastic deformation. Currently, there are no technologies for their restoration in a repair facility that guarantee the resilience of the factory product. The proposed technological process of repair consists of butt welding onto the end of the spline semi-axle shank, compensating for the wear of the metal, the volume of which takes into account the losses resulting from the wear of the slots, as well as allowances for their machining. In the example of forging the axle shaft of a truck’s driving axle, the regularities of the plastic flow of metal during part deformation in the stamp are revealed. In the process of hot volumetric upsetting of long cylindrical parts with a variable diameter, it is important to know the possible directions of metal movements, as well as the energy-power characteristics of the process at various stages of forging. The evaluation criteria of the level of perfection of the technology were indicators of resource conservation and efficiency of the recovery route. The technological direction of the conducted research was analyzed, step by step, from the standpoint of saving repair materials and energy resources. The results of theoretical studies are crucial in the design of die tooling, for the manufacture of blanks, when restoring the rear axle shafts of trucks with pressure. Production tests carried out on the models, obtained as a result of mathematical processing of experimental data, confirmed the reliability of the experimental information. The introduction of the proposed set of repair equipment for the restoration of semi-axles will allow the formation of additional production in the region for the recycling of worn-out metal-intensive steel parts of agricultural machinery.

Keywords: rear axle shaft; lengthy part; hot precipitate; plastic deformation; pressure treatment; stamp; metal movement; deformation force (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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