Pressing and selection of deformation modes in a special device

Abstract

This article discusses the evolution of the microstructure of blanks at different stages of their manufacture. The possibility of obtaining strips with a fine-grained structure using pressing in a special device is also shown. The above studies establish that the formation of a homogeneous fine–grained structure with a grain size of about 6-17 microns is ensured in the material of the billet made of aluminum alloy AD31, which leads to an increase in the strength properties of the alloy and to the preservation of good plasticity. Various types of deformed semi-finished products are made from aluminum alloys, such as plates, sheets, tapes, foil panels, profiles, pipes, rods, forgings, wire. These semi–finished products are obtained by processing ingots of continuous casting by pressure - rolling, rolling, pressing, forging, stamping or drawing. Pressed semi-finished products are made from aluminum alloys in most cases. The paper considers studies of the evolution of the microstructure of blanks at different stages of their manufacture in several passes and shows the possibility of obtaining strips with a fine-grained structure using pressing in a special device. Also, studies have found that in the material of the billet made of aluminum alloy AD31, the formation of a homogeneous fine-grained structure with a grain size of about 6-17 microns is ensured, which leads to an increase in the strength properties of the alloy and to the preservation of good plasticity.