A Comparative Study of Friction Self-Piercing Riveting and Self-Piercing Riveting of Aluminum Alloy AA5182-O

被引：0
|
作者：
Yunwu Ma [1 ,2 ,3 ]
He Shan [1 ,2 ]
Sizhe Niu [1 ,2 ]
Yongbing Li [1 ,2 ]
Zhongqin Lin [1 ,2 ]
Ninshu Ma [3 ]
机构：
[1] Shanghai Key Laboratory of Digital Manufacture for Thin-Walled Structures, School of Mechanical Engineering, Shanghai Jiao Tong University
[2] State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University
[3] Joining and Welding Research Institute, Osaka University
来源：
Engineering | 2021年 / 7卷 / 12期
基金：
中国国家自然科学基金;
关键词：
D O I：
暂无
中图分类号：
TG938 [铆];
学科分类号：
080201 ;
摘要：
In this paper, self-piercing riveting(SPR) and friction self-piercing riveting(F-SPR) processes were employed to join aluminum alloy AA5182-O sheets. Parallel studies were carried out to compare the two processes in terms of joint macrogeometry, tooling force, microhardness, quasi-static mechanical performance, and fatigue behavior. The results indicate that the F-SPR process formed both rivet-sheet interlocking and sheet-sheet solid-state bonding, whereas the SPR process only contained rivet-sheet interlocking. For the same rivet flaring, the F-SPR process required 63% less tooling force than the SPR process because of the softening effect of frictional heat and the lower rivet hardness of F-SPR. The decrease in the switch depth of the F-SPR resulted in more hardening of the aluminum alloy surrounding the rivet. The higher hardness of aluminum and formation of solid-state bonding enhanced the F-SPR joint stiffness under lap-shear loading, which contributed to the higher quasi-static lap-shear strength and longer fatigue life compared to those of the SPR joints.
引用
收藏
页码：1741 / 1750
页数：10
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