DOI: 10.18503/1995-2732-2025-23-1-44-53
Abstract
Recently, there has been a need for electrical wire made of aluminum alloys with different contents of rare earth metals (REM) as wiring for various types of advanced equipment. Also, an important factor is the increase in the efficiency of production of deformed semi-finished products due to the use of combined processes that reduce energy consumption, labor costs and increase productivity. Objective. The purpose of this study is to develop technological solutions for the production of wire from aluminum alloys containing REM, using asymmetric combined processes of rolling-extrusion (CRE) and casting-rolling-extrusion (CCRE) with one drive roll. Methods Applied. The results of experimental studies of the CRE and CCRE processes for obtaining longish deformed semifinished products from alloy 01417 at the CRE-200 laboratory facility are presented. The structure of the metal has been studied. Data on the ultimate tensile strength, elongation to failure and specific electrical resistance of hot-extruded rods and wires in cold-deformed and annealed states were obtained. Originality. It was found that it is expedient to implement the process with one driven roll when the task is to reduce the dimensions of the unit and energy-power costs in the production of longish semifinished products from aluminum alloys. Result. The results of the theoretical solutions, modelling and experimental studies are adequate and confirm the previously established patterns of change in the temperature‒speed and energy‒power parameters of the combined metal forming processes. The use of the CRE and CCRE methods with one driven roll made it possible to obtain rods with a diameter of 9 mm and wires with a diameter of up to 0.3 mm in a hard-worked and annealed state from alloy 01417 with the required level of mechanical, electrical and operational properties.
Keywords
cerium, aluminum alloys, mechanical properties, microstructure, plastic deformation, electrical resistance, rolling, extrusion, drawing
For citation
Voroshilov D.S. Characterization Properties and Structure for Wires from Al-Ce-La System Alloy Via the Method of Combined Rolling-Extrusion with a Single-Driven Roll. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2025, vol. 23, no. 1, pp. 44-53. https://doi.org/10.18503/1995-2732-2025-23-1-44-53
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