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Nonsteady Plane-strain Ideal Forming without Elastic Dead-zone
Cited 5 time in
Web of Science
Cited 5 time in Scopus
- Authors
- Issue Date
- 2002-03
- Publisher
- The Korean Fiber Society
- Citation
- Fibers and Polymers, v.3(3), pp.120-127
- Keywords
- Rigid-perfect plasticity ; Nonsteady bulk forming ; Characteristic method ; Orthogonal convective coordinate system
- Abstract
- Ever since the ideal forming theory has been developed for process design purposes, application has been limited
to sheet forming and, for bulk forming, to two-dimensional steady flow. Here, application for the non-steady case was made
under the plane-strain condition. In the ideal flow, material elements deform following the minimum plastic work path (or
mostly proportional true strain path) so that the ideal plane-strain flow can be effectively described using the two-dimensional
orthogonal convective coordinate system. Besides kinematics, schemes to optimize preform shapes for a prescribed final part
shape and also to define the evolution of shapes and frictionless boundary tractions were developed. Discussions include
numerical calculations made for a real automotive part under forging.
- ISSN
- 1229-9197
- Language
- English
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