Investigation of Properties’ Change of Copper Wire in the Process of Twisting and Subsequent Drawing
Volokitin A.V. Volokitina I.E. Fedorova T.D.
2025G.V. Kurdyumov Institute for Metal Physics of N.A.S. of Ukraine
Nanosistemi, Nanomateriali, Nanotehnologii
2025#23Issue 2611 - 618 pp.
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 crosssection 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.
copper wire , drawing , mechanical properties , microstructure , twisting
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