Influence of welding angle on the weld morphology and porosity in laser-arc hybrid welding of AA2219 aluminum alloy

2019 ◽  
Vol 64 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Cong Chen ◽  
Yiping Shen ◽  
Ming Gao ◽  
Xiaoyan Zeng
Keyword(s):  
Aluminum Alloy ◽  
Hybrid Welding ◽  
Aa2219 Aluminum Alloy

Laser–arc hybrid welding of high-strength steel and aluminum alloy joints with brass filler

2017 ◽  
Vol 33 (7) ◽  
pp. 735-742 ◽  
Author(s):  
Hongyang Wang ◽  
Baoqiang Feng ◽  
Gang Song ◽  
Liming Liu
Keyword(s):  
Aluminum Alloy ◽  
High Strength Steel ◽  
High Strength ◽  
Hybrid Welding

Investigation on Porosity, Microstructures and Performances of 6A01-T5 Aluminum Alloy Joint by Oscillating Fiber Laser-CMT Hybrid Welding

2020 ◽  
Vol 47 (8) ◽  
pp. 0802003
Author(s):  
温鹏 Wen Peng ◽  
栗忠秀 Li Zhongxiu ◽  
张松 Zhang Song ◽  
王传强 Wang Chuanqiang ◽  
毛镇东 Mao Zhendong ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Fiber Laser ◽  
Hybrid Welding

Simulation on Temperature and Residual Stress Field of Laser-MIG Hybrid Welding of A6N01-T5 Alloy

2011 ◽  
Vol 399-401 ◽  
pp. 2040-2043 ◽  
Author(s):  
Da Li ◽  
Hua Ji ◽  
Yan Liu ◽  
Guo Qing Gou ◽  
Hui Chen ◽  
...  
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Stress Field ◽  
Welded Joints ◽  
Hybrid Welding ◽  
Mig Welding ◽  
Residual Stress Field ◽  
Heat Cycling

MIG welding and laser-MIG hybrid welding have been widely used to joint aluminum alloy in recent years. Residual stress and heat cycling of MIG welding and laser-MIG hybrid welding are analyzed by SYSWELD software. The results show that the peak values of the stress in hybrid welding is 30~50% less than the results in the MIG welded joints.

scholarly journals Comparative Study of Laser-Arc Hybrid Welding for AA6082-T6 Aluminum Alloy with Two Different Arc Modes

Metals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 407 ◽  
Author(s):  
Xiaohui Han ◽  
Zhibin Yang ◽  
Yin Ma ◽  
Chunyuan Shi ◽  
Zhibin Xin
Keyword(s):  
Aluminum Alloy ◽  
Heat Affected Zone ◽  
Metal Transfer ◽  
Inert Gas ◽  
Hybrid Welding ◽  
Cold Metal Transfer ◽  
Melted Zone ◽  
Cold Metal ◽  
Fracture Features ◽  
Softening Region

The effects of arc modes on laser-arc hybrid welding for AA6082-T6 aluminum alloy were comparatively studied. Two arc modes were employed: pulsed metal inert gas arc and cold metal transfer arc. The results indicated that joints without porosity, undercutting, or other defects were obtained with both laser-pulsed metal inert gas hybrid welding (LPMHW) and laser-cold metal transfer hybrid welding (LCHW). Spatter was reduced, and even disappeared, during the LCHW process. The sizes of equiaxed dendrites and the width of the partially melted zone in the LPMHW joint were larger than those in the LCHW joint. The microhardness in each zone of the LPMHW joint was lower than that of the LCHW joint. The softening region in the heat-affected zone of the LPMHW joint was wider than that of the LCHW joint. The tensile strength of the LCHW joint was higher than that of the LPMHW joint. For the two joints, the fractures all occurred in the softening region in the heat-affected zone, and the fracture morphologies showed ductile fracture features. The dimples in the fractograph of the LCHW joint were deeper than those of the LPMHW joint.

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