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  1. No Access

    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 .....

    Li Miao-quan, Wu Shi-chun, Tang Cai-rong in Applied Mathematics and Mechanics (1990)

  2. No Access

    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...

    Wu Shi-chun, Tang Cai-rong, An Jiang-shui, Bin Feng in Applied Mathematics and Mechanics (1982)