摘要
利用Deform-3D模拟软件对旋转反挤压变形过程中AZ80镁合金的金属流动规律进行研究,探究轴向加载速度和旋转圈数对杯形件成形过程中表面金属流动的影响。论述了杯形件内壁出现流动不均性的形成机理。最后根据研究结果进行了工艺实验对比,在轴向加载速度为0.1 mm/s和旋转4圈时得到了成形良好的零件,验证了有限元模拟和金属流动规律研究结果的准确性。
The metal flow law in rotary backward extrusion process of AZ80 magnesium alloy was studied by using Deform-3 D simulation software. The effects of axial loading speed and rotation number on surface metal flow during cup-shaped part’s forming were analyzed. The formation mechanism of uneven flow in the inner wall of cup-shaped parts was discussed. Finally, according to the results of the study, the process experiment was compared. Well-formed parts are obtained at an axial loading speed of 0.1 mm/s and a rotation of 4 cycles, which verifies the accuracy of the results of the finite element simulation and the study of the metal flow law.
作者
张旭峰
王强
张治民
车鑫
宋晓茜
ZHANG Xufeng;WANG Qiang;ZHANG Zhimin;CHE Xin;SONG Xiaoqian(School of Material Science and Engineering,North University of China,Taiyuan 030051,China)
出处
《热加工工艺》
北大核心
2021年第5期72-75,85,共5页
Hot Working Technology
基金
国家自然科学基金资助项目(51775520)。
关键词
旋转反挤压
AZ80镁合金
金属流动
rotary backward extrusion
AZ80 magnesium alloy
metal flow
