通过试验研究钛的含量对ＡｌＣｕＭ ｎ 合金力学性能的影响，并从理论上进行了探讨，指出适量的钛对抗拉强度影响较大，对伸长率与硬度几乎没有影响。 The effect of titanium content on the mechanical properties of AlCuMn alloy has been investigated through experiments. The theoretical analysis shows that the proper amount of titanium has a great influence on the tensile strength and has almost no effect on the elongation and hardness.