摘要
采用伺服压力测试系统对1 mm厚的7050铝合金薄板进行了杯突试验。主要研究了变形速度和温度对7050铝合金胀形性能的影响。结果表明:杯突值随胀形温度的增加呈现出先增加后降低的趋势;杯突值随变形速度的升高表现出先降低后增加的趋势;试件不同位置的晶粒结构经过杯突试验后有所不同。
The 7050 aluminum alloy sheet with 1 mm thickness was tested by using the servo pressure test system. The effects of deformation speed and temperature on the bulging properties of 7050 aluminum alloy were studied. The results show that the cupping value increases first and then decreases with the increase of bulging temperature. The cupping value decreases first and then increases with the increase of deformation speed. The grain microstructure at different locations is different after cupping test.
作者
卢威
李华丽
LU Wei;LI Huali(Department of Aeronautical Manufacturing Engineering,Zhangjiajie Institute of Aeronautical Engineering,Zhangjiajie 427000,China;School of Materials Science and Engineering,North University of China,Taiyuan 030051,China)
出处
《热加工工艺》
北大核心
2020年第7期116-118,共3页
Hot Working Technology
基金
湖南省教育厅湖南省教育科学规划项目(XJK013BZY022)。
关键词
7050铝合金
胀形性能
变形速度
杯突试验
7050 aluminum alloy
bulging performance
deformation speed
cupping test
