Issues »  Volume 47, Issue 12

Study of the Stress State in a Wire During Deformation Using a New Combined Technology

A. V. Volokitin, E. A. Panin, D. N. Lawrynyuk

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

Received: 02.04.2024; final version - 06.05.2024. Download: PDF

In this article, the influence of a new combined-processing technology of copper wire on the stress state is investigated. This technology consists in deforming the wire in a rotating equal-channel step matrix and subsequent drawing. Deformation modelling is carried out at ambient temperature. To assess the effect of the workpiece twisting degree on the value of average hydrostatic pressure, the matrix-rotation speed is varied within 6, 18, and 30 rpm; the distance between the two deforming tools also is varied within 100, 200, and 300 mm. The simulation results reveal an inverse dependence of the intensity of compressive stresses on the matrix-rotation speed and a direct dependence on the gap magnitude between the deforming tools. Thus, with an increase in the matrix-rotation speed, the level of compressive stresses in all models is decreased by 1.5−2 times, depending on the gap length between the tools. With an increase in the distance between the two deforming tools from 100 to 300 mm, the level of compressive stresses in all models increases by 1.5−2 times, depending on the matrix-rotation speed.

Key words: copper, wire, twisting, drawing, stress state, modelling.

URL: https://mfint.imp.kiev.ua/en/abstract/v47/i12/1355.html

DOI: https://doi.org/10.15407/mfint.47.12.1355

PACS: 06.60.Vz, 46.70.Hg, 62.40.+i, 81.20.Hy, 81.20.Wk, 81.40.Lm, 83.50.Uv

Citation: A. V. Volokitin, E. A. Panin, and D. N. Lawrynyuk, Study of the Stress State in a Wire During Deformation Using a New Combined Technology, Metallofiz. Noveishie Tekhnol., 47, No. 12: 1355–1364 (2025)

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