...y; semi-solid state; backward extrusion; numerical simulation [gap=22201]关键词：A357铝合金；不均匀性；半固态；反挤压；数值模拟 ...
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... extrusion moulding挤压成形；挤塑法 backward extrusion反挤压；反向挤压；逆向挤制 sheet extrusion全张挤压；板的挤压 ...
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反向挤压力计算式的误差分析与实践 - TNMSC 关键字: 变形抗力；挤压力；计算；反向挤压[gap=932]Key words: deformation resistance; extrusion force; calculation; backward extrusion
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backward extrusion die [机] 反挤压模
backward extrusion forming 反挤压
precise backward extrusion 精密反挤压
Forming force during backward extrusion of hollow billet was analyzed by slab method and numerical simulation.
采用主应力法与数值模拟相结合的方法，研究分析空心坯料反挤压成形力变化规律。
Metal flow is a very inhomogeneous process during backward extrusion of complex box body, Relative shape and size of the blank is a key factor which affect metal flow.
复杂盒形零件的反挤压是一个极其不均匀的流动过程 ，坯料的相对形状及尺寸是影响金属流动的关键因素。
By improving the design of forging die and using press-forging and backward extrusion principle, solves the problems of 130 steering knuckle forming which can not be fully filled during forming.
通过改进预锻模膛的设计，利用镦粗成型、反挤成型的原理，有效解决了130转向节板部模锻成型时充不满的问题。
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