ISSN (print) 1995-2732
ISSN (online) 2412-9003




Problem Statement (Relevance): An equiaxed, finely dispersed and fragmented grain structure is a pre-requisite for high quality steel wire. As the structure is largely influenced by the strain conditions, it is important to ensure a nonmonotonic flow pattern. Deformation type and flow control are the main control factors in metal forming. Thus, round wire can be obtained by drawing in a single-cast die or a roller die or by radial displacement broaching. Objectives and Methods Applied: The article examines a model drawing operation performed in a single-cast die, a circle-triangle-circle roller die and in a radial displacement roller die. The models were built with the help of the Deform-3d software package. Based on the modelling results, deformation zones were analysed in a number of cross-sections. Originality: The stiffness index was used for the stress state analysis. Findings: The authors demonstrate that in the single-cast die drawing operation the compression stress does not reach the centre of the billet, whereas in the roller die drawing operation the compression stress reaches across the entire cross-section. In the radial displacement roller die, the stress produces a cyclic effect on the billet resulting in a helicoidal flow of metal. The flow patterns were analysed, and it was established that the single-cast die and the roller die processes are both characterized with a monotonic flow, which is due to a small rotation angle. Practical Relevance: Radial displacement broaching is based on a simple shear, which refers such drawing operation to nonmonotonic metal forming techniques. It is due to this mechanism that nanostructure is formed.


Drawing, wire, torsion, modelling, radial displacement broaching.

Mikhail Yu. Usanov – Assisstant Professor

Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID:

Veniamin A. Kharitonov – Ph.D. (Eng.), Professor

Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. ORCID:

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