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On the nonexistence of certain ideal forming operations for extrusion and drawing dies

Authors
Journal
Journal of the Mechanics and Physics of Solids
0022-5096
Publisher
Elsevier
Publication Date
Volume
45
Issue
8
Identifiers
DOI: 10.1016/s0022-5096(97)00009-4
Keywords
  • Ideally Plastic Material
  • Optimization

Abstract

Abstract It is shown that an ideal forming operation for an extrusion or drawing die shrinks not only the cross-sectional area but also the perimeter. It follows that for any billet shape there are product cross-sections which can be produced by extrusion or drawing dies but not by ideal forming operations.

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