Wu Shi-chun, Tang Cai-rong, An Jiang-shui, Bin Feng. An Upper-Bound Solution for the Force of Combined Backward-Forward Extrusion[J]. Applied Mathematics and Mechanics, 1982, 3(6): 807-816.
Citation:
Wu Shi-chun, Tang Cai-rong, An Jiang-shui, Bin Feng. An Upper-Bound Solution for the Force of Combined Backward-Forward Extrusion[J]. Applied Mathematics and Mechanics, 1982, 3(6): 807-816.
Wu Shi-chun, Tang Cai-rong, An Jiang-shui, Bin Feng. An Upper-Bound Solution for the Force of Combined Backward-Forward Extrusion[J]. Applied Mathematics and Mechanics, 1982, 3(6): 807-816.
Citation:
Wu Shi-chun, Tang Cai-rong, An Jiang-shui, Bin Feng. An Upper-Bound Solution for the Force of Combined Backward-Forward Extrusion[J]. Applied Mathematics and Mechanics, 1982, 3(6): 807-816.
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 field is defined in accordance with the slip-line theory. A formula of minimum upper bound solution for the punch pressure of the combined extrusion is derived. The values from this formula are compared with those from the slip-line solution.