热处理对铝合金自冲铆接头裂纹和力学性能的影响

邢保英,陈锦聪,阎治铭,张洪申,曾凯,邹春芽

Influence of heat treatment on cracks and mechanical properties of self-piercing riveted joint in aluminum alloy

Baoying XING,Jincong CHEN,Zhiming YAN,Hongshen ZHANG,Kai ZENG,Chunya ZOU

表2 不同温度退火处理后2024铝合金板材的力学性能

Table 2 Mechanical properties of 2024 aluminum alloy sheets after annealing treatment at different temperatures

退火温度/℃ 屈服强度/MPa 抗拉强度/MPa 延伸率/% 340 95.73 94.61 24.38 350 94.61 194.16 25.44 360 95.05 195.42 26.31 370 92.71 192.38 26.59 380 90.21 191.24 26.92