Microstructure characterization and quasi-static failure behavior of resistance spot welds of AA6111-T4 aluminum alloy

2014 ◽  
Vol 24 (12) ◽  
pp. 3879-3885 ◽  
Author(s):  
Sai-nan WU ◽  
Bita GHAFFARI ◽  
Elizabeth HETRICK ◽  
Mei LI ◽  
Zhi-hong JIA ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Microstructure Characterization ◽  
Failure Behavior ◽  
Spot Welds ◽  
Resistance Spot ◽  
Resistance Spot Welds ◽  
Static Failure

Three-Sheet Spot Welds of 5052 Aluminum Alloy: Weld Growth and Failure Behavior

2015 ◽  
Vol 782 ◽  
pp. 158-163 ◽  
Author(s):  
Fu Yu Yan ◽  
Zhen Luo ◽  
Yuh J. Chao ◽  
San San Ao ◽  
Yang Li ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Failure Modes ◽  
Peltier Effect ◽  
Failure Behavior ◽  
Spot Welds ◽  
Resistance Spot ◽  
Pull Out ◽  
Resistance Spot Welds ◽  
Nugget Formation ◽  
Alloy Weld

Resistance spot welding is used extensively in auto industry. Every commercial vehicle has 4000-5000 spot welds. The weld ability, performance, and reliability are therefore important issues in design. In this paper, we studied weld nugget formation and failure behavior of three-sheet 5052 aluminum alloy resistance spot welds. The Peltier effect between the Cu-Al (the electrode and the Al worksheet) to the nugget formation was noticed. The mechanical strength and fracture mode of the weld nuggets at the upper and lower interfaces were studied using tensile shear specimen configuration. Three failure modes were identified, namely, interfacial, mixed, and pull-out. The critical welding time and critical nugget diameter corresponding to the transitions of these modes were investigated. Finally, an empirical failure load formula for three-sheet weld similar to two-sheet spot weld was developed.

Effect of external magnetic field on resistance spot welds of aluminum alloy

2014 ◽  
Vol 56 ◽  
pp. 1025-1033 ◽  
Author(s):  
Yang Li ◽  
Zhen Luo ◽  
Fuyu Yan ◽  
Rui Duan ◽  
Qi Yao
Keyword(s):  
Magnetic Field ◽  
Aluminum Alloy ◽  
External Magnetic Field ◽  
Spot Welds ◽  
Resistance Spot ◽  
Resistance Spot Welds

scholarly journals Segregations in nugget of the aluminum alloy resistance spot welds.

1987 ◽  
Vol 37 (6) ◽  
pp. 405-412
Author(s):  
Yoichi TOMII ◽  
Masao KIKUCHI ◽  
Masahide WATANABE ◽  
Masao MIZUNO
Keyword(s):  
Aluminum Alloy ◽  
Spot Welds ◽  
Resistance Spot ◽  
Resistance Spot Welds

Effect of adhesive on fatigue property of Aural2 to AA5754 dissimilar aluminum alloy resistance spot welds

2016 ◽  
Vol 69 ◽  
pp. 57-65 ◽  
Author(s):  
Jidong Kang ◽  
Yuhua Chen ◽  
David Sigler ◽  
Blair Carlson ◽  
David S. Wilkinson
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Property ◽  
Spot Welds ◽  
Resistance Spot ◽  
Resistance Spot Welds
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