Journal of Production Engineering

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Vol. 6 No. 5, 6 (1989): Former "Proceedings of the Institute of Production Engineering"
Original Research Article

Investigation of plane-strain backward extrusion process by means of upper bound method

FULL TEXT ARTICLE (PDF)
  • Miroslav Plančak,
  • Alan Bramley,
  • F. Osman
Miroslav Plančak
University of Novi Sad, Faculty of Technical Sciences, Departman for Production Engineering, Trg Dositeja Obradovica 6, 21000 Novi Sad, Serbia
Alan Bramley
University of Bath, School of Mechanical Engineering England
F. Osman
University of Bath, School of Mechanical Engineering England
DOI: https://doi.org/10.24867/JPE-1989-06-087

Published 1989-12-01

abstract views: 7 // FULL TEXT ARTICLE (PDF): 3


Keywords

  • backward extrusion,
  • upper bound method,
  • optimization,
  • deformation zone

How to Cite

Plančak, M., Bramley, A., & Osman, F. (1989). Investigation of plane-strain backward extrusion process by means of upper bound method. Journal of Production Engineering, 6(5, 6), 87–97. https://doi.org/10.24867/JPE-1989-06-087

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Abstract

The process of backward extrusion in a plane strain condition was investigated using the upper bound method. A kinematically admissible velocity field was assumed inside the material beneath the punch, satisfying the boundary conditions. Total energy was calculated, and optimization with respect to the height of the deformation zone was performed. The results were compared with experiments, and a good agreement was achieved.

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FULL TEXT ARTICLE (PDF)