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Extending the life of stepped punches in the cold extrusion of bushes

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Abstract

The stress in the critical section of a punch extruding the stepped cavity of a cylindrical part is analyzed. In extrusion with actively directed contact-friction forces, the punch life is increased by a factor of about 1.5.

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Authors and Affiliations

  1. Stankin Moscow State Technical University, Moscow, 127055, Russia

    A. M. Dmitriev & N. V. Korobova

  2. Korolev Samara National Research University, Moscow, 443086, Russia

    F. V. Grechnikov

Authors
  1. A. M. Dmitriev
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  2. F. V. Grechnikov
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  3. N. V. Korobova
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Correspondence to A. M. Dmitriev.

Additional information

Original Russian Text © A.M. Dmitriev, F.V. Grechnikov, N.V. Korobova, 2017, published in Vestnik Mashinostroeniya, 2017, No. 2, pp. 73–81.

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Dmitriev, A.M., Grechnikov, F.V. & Korobova, N.V. Extending the life of stepped punches in the cold extrusion of bushes. Russ. Engin. Res. 37, 411–419 (2017). https://doi.org/10.3103/S1068798X17050094

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  • DOI: https://doi.org/10.3103/S1068798X17050094

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