Cherepovets State University, Cherepovets, Russia
A. V. Kozhevnikov, Dr. Eng., Associate Prof., Head of the Dept. of Electric Power and Electrical Engineering
D. L. Shalaevsky, Cand. Eng., Associate Prof., Dept. of Metallurgy, Mechanical Engineering and Technological Equipment, e-mail: shal-dmitrij@yandex.ru
I. A. Kozhevnikova, Dr. Eng., Associate Prof., Head of the Dept. of Metallurgy, Mechanical Engineering and Technological Equipment

The relevance of the study of the asymmetric rolling process in this paper is justified by the need to reduce the costs of producing cold-rolled products. One way to solve this problem may be the combined use of work rolls with barrels that have a different number of regrinds and, accordingly, different diameters. An important issue in this case will be determining the required power to drive the upper and lower work rolls and the rolling forces acting on these rolls during the process. Also significant is the problem of roll slippage along the strip in the stands of continuous cold rolling mills, which has practically not been studied in asymmetric rolling. Thus, the problems solved in the work were:
- study of the influence of the parameters of the asymmetric rolling process on the structural and energy-force characteristics of the deformation zone;
- assessment of the effect of the asymmetry factor on the wear of the support roll barrel;
- determination of the effect of asymmetry on tension fluctuations during rolling;
- development of a criterion for work roll slippage along the strip surface;
- creation of an algorithm for designing an asymmetric rolling mode, including an assessment of the newly created rolling mode from the point of view of the possibility of an unstable process with roll slippage along the strip.
The study of the process was carried out using the Deform program, a mathematical model of the energy-force and structural parameters of the deformation zone. It was established that under the existing conditions of continuous rolling, the asymmetry factor has little effect on the structural and energy-force characteristics of the process.
K. P. Korepina and A. S. Smirnov participated in the work.

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