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Influence of Billet Geometry on the Deformed State of a Steel Ball during Hot Stamping

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Abstract

A finite element analysis of the stress-strain state of a steel ball stamping process from a cylindrical billet was performed under the conditions of a non-isothermal process in an axisymmetric formulation. Three options for stamping a ball from blanks with different height-to-diameter ratios are considered. Distribution of temperature, degree and deformation rate, average stress and stress intensity are given. It has been found that with an increase in the relative workpiece height, the degree of deformation over the ball volume increases. In this case, the temperature value in the ball volume increases. A metal cooldown zone on the periphery of billet ends was revealed. Stress state index assessment at the last stage of stamping made it possible to identify the workpiece dangerous zones from the point of failure. When considering the metal plasticity indicators, this makes it possible to predict the defectiveness of products.

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Authors and Affiliations

  1. Federal State Autonomous Educational Institution of Higher Education “Ural Federal University named after the first President of Russia B.N. Yeltsin”, 620002, Ekaterinburg, Russia

    Yu. N. Loginov

  2. M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences (IMP UB RAS), 620108, Ekaterinburg, Russia

    Yu. N. Loginov & Yu. V. Zamaraeva

  3. Nizhny Tagil Iron and Steel Works, 622025, Nizhny Tagil, Sverdlovsk region, Russia

    S. S. Puzyrev

  4. Kamensk-Uralsky Metallurgical Plant OJSC, 623405, Kamensk-Uralsky, Sverdlovsk region, Russia

    Yu. V. Zamaraeva

Authors
  1. Yu. N. Loginov
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  2. Yu. V. Zamaraeva
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  3. S. S. Puzyrev
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Correspondence to Yu. N. Loginov.

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The authors declare that they have no conflicts of interest.

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Translated by V. Selikhanovich

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Loginov, Y.N., Zamaraeva, Y.V. & Puzyrev, S.S. Influence of Billet Geometry on the Deformed State of a Steel Ball during Hot Stamping. Steel Transl. 53, 549–553 (2023). https://doi.org/10.3103/S0967091223060086

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