DOI: 10.18503/1995-2732-2025-23-4-54-60
Abstract
The organization of a competitive production of wires for various applications with a fine-grained structure is currently a crucial task for the hardware manufacturing sector of domestic metallurgy. This paper describes a novel method that enables increasing the efficiency of wire production without changing the existing technological scheme. Numerical simulations were performed in the Deform-3D software package for three variants of wire manufacturing from 80R steel: drawing in a monolithic die; the combined process of “cold rolling – drawing in a monolithic die”; and a new process such as “cold asymmetric rolling – drawing in a monolithic die”. The distribution of accumulated strain in the wire obtained by these methods is evaluated. A comparative analysis of the results shows that the lowest accumulated strain values are obtained in wire drawn only in a monolithic die. In the combined process of flattening (rolling of a round blank with smooth rolls) followed by drawing in a monolithic die, the accumulated strain level increases significantly due to rolling. The application of asymmetric rolling with a ratio of the rotation speeds of the upper and lower rolls equal to 2 or 5 further increases the level of accumulated strain. It is demonstrated that the process of “cold asymmetric rolling – drawing in a monolithic die” allows for increasing the accumulated strain in the wire and thus producing a fine-grained structure without replacement of the existing equipment or infrastructure. Additionally, wide opportunities for controlling deformation modes in both the roll mill stand and monolithic die are revealed, which opens up promising ways for further improvement of the drawing process.
Keywords
wire, drawing, rolling, asymmetric rolling, combined processes, modeling, accumulated strain.
For citation
Kharitonov V.A., Pesin A.M., Usanov M.Yu., Lokotunina N.M., Melikhov E.D. Application of the Combined Method “Asymmetric Rolling - Drawing in a Monolithic Die” in the Production of Wire With Fine-Grained Structure. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2025, vol. 23, no. 4, pp. 54-60. https://doi.org/10.18503/1995-2732-2025-23-4-54-60
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