摘要
研究了不同镦粗温度下AZ80镁合金空洞的演化规律。在一定的压下量(6 mm)和压下速度(0.1 mm/s)下,分别在340、350、360、370、380、390℃进行镦粗。利用数值模拟软件Deform对其成形过程进行了模拟,得出AZ80镁合金在不同温度镦粗时,空洞闭合的一般演化规律。然后在INSTRON万能拉伸机上进行镦粗验证试验,确定一般演化规律的真实性和准确性。结果表明,随着镦粗温度的变化,AZ80镁合金在360℃时,空洞近乎于完全闭合。
The evolution of AZ80 magnesium alloy voids at different upsetting temperatures was studied.The upsetting was carried out at 340,350,360,370,380,390 ℃ under a certain reduction(6 mm)and reduction velocity(0.1 mm/s).The forming process was simulated by numerical simulation software Deform.The general evolution law of void closure of AZ80 magnesium alloy under different upsetting temperature was obtained.Then the upsetting verification test was carried out by using INSTRON universal tensile machine to determine the authenticity and accuracy of its general evolution law.The results show that with the change of upsetting temperature,the voids of AZ80 magnesium alloy are almost completely closed at 360 ℃.
作者
任耀
王强
张治民
郭鹏杰
王鑫
郭世超
REN Yao;WANG Qiang;ZHANG Zhimin;GUO Pengjie;WANG Xin;GUO Shichao(College of Materials Science and Engineering,North University of China,Taiyuan 030051,China;Engineering Technology Research Center for Integrated Precision Forming of Shanxi,Taiyuan 030051,China)
出处
《热加工工艺》
北大核心
2019年第5期154-157,共4页
Hot Working Technology
基金
国家自然科学基金资助项目(51775520)
关键词
AZ80镁合金
镦粗
空洞闭合
数值模拟
物理模拟
AZ80 magnesium alloy
upsetting
void closure
numerical simulation
physical simulation
