论文部分内容阅读
为了研究温度对镁合金板材挤压的影响,通过Deform-3D对挤压速度10 mm/min和挤压温度300、350、400、450℃以及挤压温度400℃和挤压速度10、50、100、200 mm/min条件下的AZ31镁合金板材成形过程进行了数值模拟。结果显示,随着挤压温度升高,有效应变增大,流变应力减小。随着挤压速度增大,有效应变增大,有效应力随之增大。板材挤压过程中,板材的边部出现卷曲现象,距中心越远的部位有效应变越小,挤压变形也不均匀。因此,在挤压时需要根据实际情况选择合适的挤压温度。
In order to study the effect of temperature on the extrusion of magnesium alloy sheet, the extrusion rate of 10 mm / min and the extrusion temperature of 300, 350, 400, 450 ℃ and the extrusion temperature of 400 ℃ and extrusion speed of 10, 50, The forming process of AZ31 magnesium alloy sheet under 100,200 mm / min was simulated. The results show that as the extrusion temperature increases, the effective strain increases and the flow stress decreases. With the extrusion speed increases, the effective strain increases, the effective stress increases. Plate extrusion process, the curling of the edge of the plate, the farther away from the center of the site the smaller the effective strain, extrusion deformation is not uniform. Therefore, in the extrusion need to choose the right extrusion temperature according to the actual situation.