通过对4032铝合金Φ200 mm棒材的热挤压和热处理工业实验,对挤压工艺进行了优化,并研究了热处理制度对其力学性能的影响。研究结果表明,4032铝合金最佳的挤压温度区间为380～430℃;最佳挤压速度为0.1～0.2 m.min-1。经510℃固溶30 min,160℃时效1.5 h后,挤压棒材具有最佳的综合力学性能,其屈服强度达344 MPa,抗拉强度达382 MPa,延伸率达6.25%。 The extrusion process was optimized through the industrial experiments of hot extrusion and heat treatment on Φ200 mm bar of 4032 aluminum alloy and the influence of heat treatment on its mechanical properties was studied. The results show that the best extrusion temperature range of 4032 aluminum alloy is 380 ~ 430 ℃; the optimum extrusion speed is 0.1 ~ 0.2 m.min-1. After the solution at 510 ℃ for 30 min and aging at 160 ℃ for 1.5 h, the extruded bar has the best mechanical properties, yield strength of 344 MPa, tensile strength of 382 MPa and elongation of 6.25%.