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文章选取一个特定的复杂横截面型材,分析其模具的设计方案;建立了挤压过程的有限元模型,利用基于任意拉格朗日欧拉法(ALE)的Hyperxtrude专用模块,对铝合金型材的挤压过程进行模拟分析。通过对模具设计方案的数值模拟,重点对坯料在模具中不同位置的速度分布结果进行分析,并对比实际试模情况,对模具的设计方案进行了修正,探讨了在挤压工艺中通过模具结构的调整,实现对金属流动进行控制,以改善模腔内的材料流动,获得合格的型材产品。
In this paper, a specific cross-section profile is selected to analyze the design of the mold. A finite element model of the extrusion process is established. The Hyperxtrude module based on arbitrary Lagrangian (ALE) Extrusion process simulation. Through the numerical simulation of the mold design scheme, the analysis of the velocity distribution of the blank at different positions in the mold is emphatically analyzed. Compared with the actual mold test, the design of the mold is modified. The influence of the mold structure Of the adjustment, to achieve the control of metal flow, to improve the material flow within the cavity, access to qualified profile products.