Strong plastic deformation method of Al-Cu-Mg alloy

The invention discloses a strong plastic deformation method of an Al-Cu-Mg alloy, which comprises the following steps: carrying out homogenization treatment on the Al-Cu-Mg alloy; the Al-Cu-Mg alloy obtained after homogenization treatment is subjected to hot rolling treatment; the Al-Cu-Mg alloy subjected to hot rolling treatment is subjected to solution treatment and aging treatment; and carrying out cold rolling treatment. The influence of rolling process parameters, alloy elements and a heat treatment system on the structure and mechanical properties of the Al-Cu-Mg alloy is analyzed through the large strain rolling process, and the room temperature strength of the Al-Cu-Mg alloy obtained through the optimized large strain rolling process is larger than 500 MPa. 本发明公开了一种Al-Cu-Mg合金的强塑性变形方法，包括，对Al-Cu-Mg合金进行均匀化处理；对均匀化处理后的Al-Cu-Mg合金进行热轧处理；对热轧处理后的Al-Cu-Mg合金进行固溶处理和时效处理；进行冷轧处理。本发明采用大应变轧制工艺分析了轧制工艺参数、合金元素、热处理制度对Al-Cu-Mg合金中组织、力学性能的影响，经过本发明优化后的大应变轧制工艺获得的Al-Cu-Mg合金，其室温强度大于500MPa。