【摘要】 平面分流焊合模在有色金属型材挤压中得到较多的采用，结合金属流动的数值模拟结论和对ＭＢＺ合金实际单位挤压力的研究结果，给出了平面分流焊合挤压力的工程简化计算方法，与实际相比，工程相对误差小于１０％，可供实际参考。更多还原

【Abstract】 The porthole die extrusion can often be used to produce the section extrusion of nonferrous met- als. Based on the results of numerical simulation and the experimental results of practical extrusion pressure for MB2 alloy, this paper gives a simple engineering algorithm of the extrusion force during the process of the porthole die extrusion. Compared with the experimental results, the algorithm has less than 10% relative error. Therefore, it can be reference for the practical application.更多还原