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从优化设计思想出发，对热挤压凸模延寿问题进行了研究，利用有限元方法计算了某反挤压件热挤压凸模热应力场、机械应力场及总应力场，并以此为依据对凸模结构尺寸进行了优化设计
Based on the idea of optimal design, the hot extrusion punch life extension problem was studied. The thermal stress field, mechanical stress field and total stress field of hot extrusion punch were calculated by finite element method Based on the punch structure size optimized design