Fatigue of self-piercing riveted joints in aluminum alloy 6111

2003 ◽  
Vol 25 (3) ◽  
pp. 183-189 ◽  
Author(s):  
Maofeng Fu ◽  
P.K Mallick
2017 ◽  
Vol 100 ◽  
pp. 274-284 ◽  
Author(s):  
Li Huang ◽  
Haiding Guo ◽  
Yandong Shi ◽  
Shiyao Huang ◽  
Xuming Su

2020 ◽  
Vol 10 (17) ◽  
pp. 5947
Author(s):  
Dong Hyuck Kam ◽  
Taek Eon Jeong ◽  
Jedo Kim

This study investigates the quality of self-piercing riveted joints between vibration-damping aluminum (Al) and other dissimilar materials, namely aluminum alloy (AL5052-H32), steel alloy (GA590DP), and carbon-reinforced plastic (CFRP). The effects of die types (flat, cone, and nipple) on the geometrical characteristics and mechanical performance of the joints are studied using a cross-section examination and tensile shear load testing. The failure modes of each joint are also presented, showing the nature of the forces leading to the joint failures. The results indicate that, for all configurations, adequate joining between vibration-damping Al with AL5052-H32 is expected with a maximum shear load up to 3.28 kN. A shear load up to 3.6 kN was measured for the joints with GA590DP panels with acceptable top and bottom seal characteristics. A vibration-damping Al panel can only be positioned at the bottom when riveting with CFRP due to the brittle nature of CFRP. A tensile shear load up to 2.26 kN was found, which is the lowest amongst the materials tested in this study.


2018 ◽  
Vol 244 ◽  
pp. 01007
Author(s):  
Anna Rudawska ◽  
Izabela Miturska ◽  
Dana Stančeková ◽  
Jacek Mucha

The objective of this study is to compare the strength of riveted joints fabricated by traditional riveting (with pre-drilled holes) and self-piercing riveting (SPR) for different types of joints. Riveted joints were produced using steel and aluminum alloy rivets and two types of sheet material: 235JR steel sheet and EN AW 6060 aluminum alloy sheet with the following dimensions: length l = 100 ± 1 mm, width b = 50 ± 1 mm and thickness g = 2 mm. For all tested types of riveted joints (pre-drilled and SPR), 5 sets of joints were fabricated, each set containing 6 samples. The sets of joints differed with respect to the number of rivets (1, 2, 3, 4 and 6 rivets), joint type (single-, three- and four-riveted joints) and lap length. For all tested joints, the highest load capacity was obtained for self-pierced riveted joints, while the lowest - for pre-drilled joints with aluminum alloy rivets. In addition, it was found that the shear strength of self-pierced riveted joints is higher than that of aluminum and steel blind rivets.


2015 ◽  
Vol 87 ◽  
pp. 1010-1017 ◽  
Author(s):  
Lun Zhao ◽  
Xiaocong He ◽  
Baoying Xing ◽  
Yi Lu ◽  
Fengshou Gu ◽  
...  

2009 ◽  
Vol 24 (2) ◽  
pp. 459-469 ◽  
Author(s):  
R. Lapovok ◽  
L.S. Tóth ◽  
M. Winkler ◽  
S.L. Semiatin

Microstructure evolution, mechanical properties, formability, and texture development were determined for AA6111 samples processed by asymmetric rolling (ASR) with different roll friction, velocity, or diameters, conventional rolling (CR), and equal-channel-angular pressing (ECAP). Highly elongated or sheared grain structures were developed during ASR/CR and ECAP, respectively. ASR led to improved r-values and formability compared with CR primarily as a result of the development of moderate shear-texture components analogous to those developed during ECAP of billet material. ASR based on different roll diameters gave the best combination of strength, ductility, and formability.


Author(s):  
Zheng Jin ◽  
P. K. Mallick

Self-piercing riveting is receiving attention in the automotive industry as an alternative to spot welding for body panels and structures, especially if they are made of aluminum alloys. In this paper, we explore the possibility of enhancing fatigue life of self-piercing riveted joints in 5754-O aluminum alloy sheets. Different sheet thickness combinations are considered. Coining is found to increase fatigue life significantly for self-piercing riveted joints in thinner sheets. However, the fatigue life enhancement is found to be less significant if the sheet thickness is in the range of 3 mm. The enhancement of fatigue life is attributed to residual compressive stresses around the coined area.


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