COMPUTER SIMULATION OF PRELIMINARY HEAT TREATMENT AND RADIAL-SHEAR ROLLING OF COPPER

Naizabekov A. Panin E. Lezhnev S. Arbuz A. Tolkushkin A. Knapinski M. Esbolat A.
2023 University of Chemical Technology and Metallurgy

Journal of Chemical Technology and Metallurgy
2023 #58 Issue 6 1163 - 1170 pp.

This paper presents the results of computer simulation by the cellular automata method of preliminary heat treatment and radial-shear rolling of M1 copper alloy. Quenching and annealing processes were modeled as pre-heat treatment modes. The radial-shear rolling stage consisted of three passes with a compression of 3 mm per pass. The variable parameters were the roll rotation speed (40 rpm, 70 rpm and 100 rpm) and the workpiece heating temperature before rolling (20°C and 200°C). It was found that the most effective mode of pre-heat treatment for M1 copper alloy is quenching at 700°C. The most rational value of the workpiece heating temperature before rolling is 20°C, since in this case, at all selected speeds, the recrystallization process does not start, which contributes to intensive grinding of grain in the surface layers and on the periphery. An increase in the roll rotation speed causes additional deformation heating, which contributes to the recrystallization and suppression of intensive grain grinding. Therefore, when heating the M1 copper alloy to 200°C, it is not recommended to increase the rolling speed above the nominal.

copper , microstructure , pre-heat treatment , radial-shear rolling , simulation

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Rudny Industrial Institute, 50 let Oktyabrya str. 38, Rudny, 111500, Kazakhstan
Karaganda Industrial University, 30 Republic Ave., Temirtau, 101400, Kazakhstan
AEO Nazarbayev University, 53 Kabanbay Batyr Ave., Astana, 010000, Kazakhstan
Ural Federal University, 19 Mira Str., Ekaterinburg, 620002, Russian Federation
Częstochowa University of Technology, ul. J.H. Dąbrowskiego 69, Częstochowa, 42-201, Poland

Rudny Industrial Institute
Karaganda Industrial University
AEO Nazarbayev University
Ural Federal University
Częstochowa University of Technology

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