download PDF
Abstract
One of main objectives of the modern industry is to increase efficiency of production and improve the quality of products. Consequently, there is a need for developing metallic materials processing technologies to achieve a high level of mechanical properties. Therefore, the paper describes asymmetric rolling of aluminum alloys. The authors analyzed regularities of the rolling process of aluminum alloys to determine rational parameters, ensuring the required gradient structure, by applying computer modeling in Deform 2D/3D and Qform2D/3D software complexes. The computer modeling results were tested on two-high asymmetric rolling mill 400 at the Zhilyaev Mechanics of Gradient Nanomaterials Laboratory at Nosov Magnitogorsk State Technical University. Samples of aluminum alloy D16 were used as incoming workpieces for asymmetric rolling. The paper presents a comparative evaluation of the computer modeling results and experimental data. It contains advantages of asymmetric deforming over a symmetric process, including a significant decrease in rolling force. It also describes a possibility of controlling strength characteristics and process ductility depending on a ratio between speeds of work rolls and reduction rate. The Brinell hardness testing results are given.
Keywords:
Asymmetric rolling, aluminum alloy, strain rate, computer modeling, strength, ductility.
Pustovoitov Denis O. – PhD (Eng.), Associate Professor of the Department of Materials Processing Technologies, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Pesin Aleksandr M. – DSc (Eng.), Professor of the Department of Materials Processing Technologies, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Pesin Ilia A. – PhD (Eng.), junior researcher of the research and innovation sector, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Kozhemiakina Anna E. – postgraduate student of the Department of Materials Processing Technologies, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Nosov Leonid V. – postgraduate student of the Department of Materials Processing Technologies, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Sverchkov Aleksei I. – Master’s student of the Department of Materials Processing Technologies, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
