针对铝合金硬态挤压型材类零件冷成形工艺制取下陷出现的塌边问题，通过分析挤压型材结构的特殊性，从材料自身金属性能结合下陷成形过程的应力应变分析查找原因，依据相应标准摸索解决挤压型材冷工艺制下陷塌边问题的工艺方法及模具结构的关键点，从而解决了硬态挤压型材类零件冷成形工艺制取下陷塌边问题。%Based on the cooperation project development needs,in view of the joggles of aluminum al-loy hard extruded stocks appear depression edge issues by the cold forming,Through analysis on the character of ex-truded stock, the metal character and the stress of forming process for extruded stock is researched,according to the relative standards,the forming technology and the key of die structure is explored,to resolve extruded stocks depres-sion edge issues by the cold forming.
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