摘要
使用Deform 3D软件对AZ31B镁合金进行了250℃和模具转角90°、110°等通道角(ECAP)挤压的模拟。结果显示,在250℃下能够较好地完成ECAP挤压,最大的应变在转角处产生。随着角度的增大,有效应力和有效应变均减小。通过转角处附近切面可以看出其不同部位应变不一致,这使等通道角挤压过程产生变形不均匀。
The equal channel angular pressing （ECAP） of the AZ31B magnesium alloy at 150℃ and in the die comer angle of 90° and 110° was simulated by using Deform-3D software. The results show that, the ECAP can be completed at 250℃ and the maximum strain is at the comer of die. With the increasing angle, the effective strain and effective stress decrease at the same time. Through the neighbouring corner sectioning, it is observed that the strains in different parts are inconformity. This makes the equal channel angular extrusion process deform inhomogeneous.
出处
《热加工工艺》
CSCD
北大核心
2015年第5期129-131,共3页
Hot Working Technology
