通过单向拉伸试验获得了LF2M(Φ75 mm×1.5 mm)和LF21M(Φ27 mm×1 mm)两种铝合金管材的基本力学性能。研究了不同数学模型对材料应变硬化曲线的描述能力,发现采用幂函数对LF2M管材试验数据拟合较好,指数函数对LF21M管材试验数据拟合较好;基于单向拉伸试验获得了两种铝合金管材的塑性应变比。为上述两种试验铝合金管材的塑性成形分析提供了实用的材料模型。 The basic mechanical properties of two aluminum alloy pipes LF2M (Φ75 mm × 1.5 mm) and LF21M (Φ27 mm × 1 mm) were obtained by uniaxial tensile test. The ability of describing the strain hardening curve of different materials is studied. It is found that the power function fitting the experimental data of LF2M pipe well, the exponential function fitting well to the experimental data of LF21M pipe. Based on the one-way tensile test, Plastic strain ratio of aluminum alloy pipe. A practical material model was provided for the plastic forming analysis of the above two kinds of test aluminum alloy pipes.