DOI: 10.18503/1995-2732-2023-21-3-62-77
Abstract
The paper presents the force parameters, when producing rods and wire from them with a diameter of 2 mm, and mechanical and electrophysical properties of the manufactured semi-finished products from an alloy of the Al-REM system, containing 1% of rare earth metals. The wire was produced by the methods of combined rolling-extrusion (CRE), combined casting and rolling-extrusion (CCRE) and drawing. The paper contains the results of experimental studies on the process of producing long deformed semi-finished products from an experimental alloy on the CRE (CCRE)-200 laboratory unit. The authors obtained data on ultimate tensile strength and percentage elongation of hot extruded rods with a diameter of 5 and 9 mm, as well as wire with a diameter of 2 mm produced from these rods after the CRE and CCRE processes. It has been established that the proposed processing modes make it possible to produce rods with a diameter of 9 mm and 5 mm by the combined rolling-extrusion method from billets with dimensions of 14×14 mm (for the CRE process), as well as to produce rods from melt that crystallizes in rolls, excluding a process stage of producing a solid billet (for the CCRE method). Roll forces do not exceed 323 kN for the CRE process and 279 kN for the CCRE process. The forces on the die do not exceed 206 kN for the CRE process and 171 kN for the CCRE process. Plasticity of the produced rods with a diameter of 5 and 9 mm after the CRE and CCRE methods was sufficient for the subsequent drawing of a wire with a diameter of 2 mm without a single intermediate annealing (percentage elongation varied from 17 to 35% depending on the production mode).
Keywords
aluminum alloys, rare earth metals, wire, mechanical properties, casting, combined casting-rolling-extrusion, combined rolling-extrusion, drawing, force parameters
For citation
Voroshilov D.S., Lebedeva O.S., Bespalova D.D., Durnopyanova A.S., Berngardt V.A., Voroshilova M.V. Study on Modes of Producing Wire from Al-REM Alloys Using Combined Methods of Processing and Subsequent Drawing. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2023, vol. 21, no. 3, pp. 62-77. https://doi.org/10.18503/1995-2732-2023-21-3-62-77
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