Study of the Stress State in a Wire During Deformation Using a New Combined Technology
Volokitin A.V. Panin E.A. Lawrynyuk D.N.
1 December 2025G.V. Kurdyumov Institute for Metal Physics of N.A.S. of Ukraine
Metallofizika i Noveishie Tekhnologii
2025#47Issue 121355 - 1364 pp.
In this article, the influence of a new combined-processing technology of cop per wire on the stress state is investigated. This technology consists in de forming 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 hy drostatic 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.
copper , drawing , modelling , stress state , twisting , wire
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