通过DEFORM-3D软件对AZ31镁合金在300℃进行了不同壁厚(5、2.5、1mm)管的反挤压成形模拟。结果表明,在300℃能成功地反挤成形,但挤压过程中变形不均匀。随着离试样中心位置的距离增大,变形有效应变先增大后减小,这主要与反挤压过程中材料流动的不同有关。总之,在300℃能够反挤压成形管壁1mm的镁合金筒形件。 By DEFORM-3D software AZ31 magnesium alloy at 300 ℃ with different wall thickness (5,2.5,1 mm) reverse extrusion tube simulation. The results show that at 300 ℃ can successfully reverse extrusion, but the extrusion process of uneven deformation. As the distance from the center of the sample increases, the effective deformation strain first increases and then decreases, which is mainly related to the material flow in the anti-extrusion process. In summary, a magnesium alloy cylinder having a wall of 1 mm can be reverse-extruded at 300 ° C.