Material flow behavior and microstructural evolution during refill friction stir spot welding of alclad 2A12-T4 aluminum alloy

2021 ◽  
Vol 28 (1) ◽  
pp. 131-141
Author(s):  
Gao-hui Li ◽  
Li Zhou ◽  
Ling-yun Luo ◽  
Xi-ming Wu ◽  
Ning Guo
Keyword(s):  
Aluminum Alloy ◽  
Microstructural Evolution ◽  
Material Flow ◽  
Spot Welding ◽  
Flow Behavior ◽  
Friction Stir Spot Welding ◽  
Friction Stir

Effect of Tool Geometry on Material Flow Behavior of Refill Friction Stir Spot Welding

2016 ◽  
Vol 70 (6) ◽  
pp. 1417-1430 ◽  
Author(s):  
Shude Ji ◽  
Yue Wang ◽  
Zhengwei Li ◽  
Yumei Yue ◽  
Peng Chai
Keyword(s):  
Material Flow ◽  
Spot Welding ◽  
Flow Behavior ◽  
Friction Stir Spot Welding ◽  
Tool Geometry ◽  
Friction Stir

Electrically Assisted Friction Stir Spot Welding of Aluminum Alloy to Advanced High Strength Steel

2017 ◽  
Author(s):  
Kai Chen ◽  
Xun Liu ◽  
Jun Ni
Keyword(s):  
Aluminum Alloy ◽  
Material Flow ◽  
Spot Welding ◽  
Aluminum Matrix ◽  
Welding Process ◽  
Friction Stir Spot Welding ◽  
Steel Matrix ◽  
Friction Stir ◽  
Lap Shear ◽  
Electrically Assisted

This paper studies an electrically assisted friction stir spot welding (FSSW) process for joining aluminum alloy 6061-T6 to TRIP 780 steel. The electrical current shows to reduce the axial plunge force and assist the material flow of the aluminum matrix during the welding process. When electrical pulses and direct current (DC) with the same energy input are applied, the results show insignificant differences. Bulk material flow can be observed in the weld cross sections. A more uniform hook is generated at the Fe/Al interface after applying the current. Besides, the diffusion of aluminum atoms into the steel matrix is enhanced. Regarding the weld quality, electrically assisted FSSW improves the joint lap shear strength when compared with regular FSSW process.

scholarly journals Texture Development and Material Flow Behavior During Refill Friction Stir Spot Welding of AlMgSc

2017 ◽  
Vol 49 (1) ◽  
pp. 241-254 ◽  
Author(s):  
Junjun Shen ◽  
Sara B. M. Lage ◽  
Uceu F. H. Suhuddin ◽  
Claudemiro Bolfarini ◽  
Jorge F. dos Santos
Keyword(s):  
Material Flow ◽  
Spot Welding ◽  
Flow Behavior ◽  
Friction Stir Spot Welding ◽  
Texture Development ◽  
Friction Stir
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