МРНТИ 55.29.33                                                                                              №4 (2020г.)

Mashekov S.A., Nugman E.Z., Tusupgalieva E.A., Mashekova   A.S.

The radial-shift (RSM) of a new design is given in this article, which allows obtaining high quality rods and wires by combination of rolling and press-
ing processes. Geometric dimensions of rolls protrusion and cavity gradually decrease in the direction of the pressing. The stress- strained state of the billet from aluminum alloy 7075 when rolling on the even rolls, which mounted on the existing RSM, and also when pressing on the RSM of a new design is investigated in this work. With help of final elements method and MSC.SuperForge program the quantitative date is gained, and the new regularities of stress-strain behavior, of temperature distribution when the billet rolling on sleek rolls and treatment of billets by a new combined process of rolling in helical rolls and the pressing in matrix are establishedIt is established, that at the billet processing from aluminum alloy
7075 in helical rolls and matrix, mounted on the RSM of a new design, the fine grained structure, contributing to improve the quality of metal products in cross section of produced rods is formed.
Keywords: aluminum alloys, recrystallization, polygonization, rolling, pressing, numerical modeling, stress and strain intensity.