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Article
An upper bound solution for the force of combined backward-torward extrusion
A rigid-triangle velocity field for combined backward-forward extrusion based on the experiments and the slip-line field is proposed in this paper. The flow separation point in the rigid-triangle velocity fiel...
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Article
Analysis of surface crack on forward extruding bar during axisymmetric cup-bar combined extrusion process
In this paper, the kinematically admissible velocity field with surface crack on forward extruding bar is put forward during the axisymmetric cup-bar combined extrusion process, in accordance with the results .....