摘要
为了探索AZ31镁合金薄壁管游动芯头拉拔成形与传统工艺之间的差异,使用ABAQUS软件对其进行了游动芯头拉拔过程的模拟,并比较研究了模具与芯头锥角配合、定径带长度对拉拔管材成形性的影响。研究结果表明:在拉拔AZ31镁合金管材时,选择合适的模具角度不仅可以降低残余应力,还可以提高尺寸精度;同时,模具定径段长度对管材变形均匀性和残余应力产生较大影响。
In order to explore the difference between the drawing process of AZ31 magnesium alloy thin-wall tube and the traditional process,the drawing process of the floating core head was simulated by ABAQUS software,and the influence of the matching of die and core head cone angle and the length of caliper strip on the formability of the drawn tube was compared.The results showed that during the drawing of AZ31 magnesium alloy tubes,selecting an appropriate die angle not only reduced residual stresses but also improved dimensional accuracy.Additionally,the length of the sizing zone in the die had a significant impact on deformation uniformity and residual stresses in the tubes.
作者
徐辉
拓雷锋
Xu Hui;Tuo Leifeng(School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan Shanxi 030024,China)
出处
《山西冶金》
CAS
2024年第3期6-9,共4页
Shanxi Metallurgy
基金
山西省重点研发计划项目(202102150401002)。
关键词
AZ31管材
游动芯头拉拔
有限元模拟
模具设计
AZ31 magnesium alloy tube
floating-plug drawing
finite element simulation
die design
