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Wire production in Russia and other CIS countries
ArticleName Simulation of drawing process for bimetallic wire of carbon steel and 12Cr18Ni10Ti stainless steel
ArticleAuthor V. F. Danenko, L. M. Gurevich, Yu. P. Trykov, V. M. Volchkov, V. A. Nikitin

Volgograd State Technical University (Volgograd, Russia):

Danenko V. F., Cand. Eng., Associate Prof., the Chair “Technology of Materials”
Gurevich L. M., Cand. Eng., Associate Prof., Head of the Chair “Metal Science and Composite Materials”
Trykov Yu. P., Dr. Eng., Prof., the Chair “Metal Science and Composite Materials”
Volchkov V. M., Cand. Eng., Associate Prof., the Chair “Applied Mathematics”
Nikitin V. A., Student, the Chair “Technology of Materials”

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Finite-element simulation of the plastic flow of a bimetallic wire in drawing process through a converging conical die is described in this paper. The bimetallic wire had a shell of 12Cr18Ni10Ti austenitic steel and the carbon steel core with a carbon content of 0.1, 0.45 and 0.8%. Individual reduction values according to the drawing sche dule made 17–25%. The purpose of this work was to study the influence of the ratio of the mechanical properties of wire core and shell on the stress state of metal volumes in the deformation area. It was established that for bimetal containing of steel 10 and 12Cr18Ni10Ti stainless steel, the external layer is more strained, characterized by equivalent stresses by Mises as large as appr. 1450 MPa (while on the axis equivalent stresses by Mises made appr. 650 MPa). As concerns bimetal containing of steel 80 and stainless steel 12Cr18Ni10Ti, the core is more strained, characterized by equivalent stress about 1300 MPa (in steel 12Cr18Ni10Ti equivalent stresses are equal to appr. 650 MPa). The measures to reduce the likelihood of defects forming in the bimetallic wire after drawing are suggested by the authors.

keywords Wire drawing, simulation, bimetal wire, carbon steel, core, shell, reduction, stress state, finite-element mesh, radial stress, longitudinal stress, wire-drawing die, cone angle

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