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A. V. VOLOKITIN, I. E. VOLOKITINA, and T. D. FEDOROVA

Karaganda Industrial University, 30, Republic Ave., 101400 Temirtau, Kazakhstan

Investigation of Properties’ Change of Copper Wire in the Process of Twisting and Subsequent Drawing

611–618 (2025)

PACS numbers: 62.20.Qp, 62.23.Hj, 68.37.Hk, 68.37.Lp, 81.20.Hy, 81.40.Jj, 83.50.Uv

In this paper, the change in the mechanical properties of copper wire in the process of deformation in a new way is studied. This new method consists in combining two technologies in one line, namely, traditional drawing and twisting in an equal-channel stepped matrix. The twisting of the work piece occurs precisely in an equal-channel stepped matrix due to its rotation around the work piece axis that allows achieving the twisting in the entire volume of the work piece, followed by calibration of the cross-section due to the passage of the die channel. A physical experiment has shown the possibility of obtaining increased mechanical properties in copper wire by obtaining the nanostructure in the surface layer. In this regard, the use of an improved drawing method, combining torsion methods, which implement a simple shear scheme and the classical drawing process through a die, allows expanding the limits of the use of traditional structural materials.

KEY WORDS: copper wire, drawing, twisting, microstructure, mechanical properties

DOI:  https://doi.org/10.15407/nnn.23.02.0611

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