Application of Laser/Arc Hybrid Welding to Welding of AZ31B Magnesium Alloy

2003 ◽  
Vol 2003.11 (0) ◽  
pp. 349-350
Author(s):  
Teawon KIM ◽  
Yu HASEGAWA ◽  
Yasuo SUGA ◽  
Yosinari OKI
2017 ◽  
Vol 93 ◽  
pp. 139-145 ◽  
Author(s):  
Minghua Chen ◽  
Jiannan Xu ◽  
Lijun Xin ◽  
Zuofu Zhao ◽  
Fufa Wu ◽  
...  

2012 ◽  
Vol 42 ◽  
pp. 46-54 ◽  
Author(s):  
Ming Gao ◽  
Hai-Guo Tang ◽  
Xiao-Feng Chen ◽  
Xiao-Yan Zeng

2004 ◽  
Vol 449-452 ◽  
pp. 417-420 ◽  
Author(s):  
Taewon Kim ◽  
Jong Cheol Kim ◽  
Yu Hasegawa ◽  
Yasuo Suga

Recently, magnesium alloy is in the limelight as ECological material with high ability of recycling and lightweight property. Especially, because of outstanding properties as a structural material, the magnesium alloy is in great demand. Under these circumstances, the technical researches and developments of welding process for magnesium alloy welding have great significance to expand industrial application of magnesium. In magnesium alloy welding, arc welding process is generally used. However, heat input by the welding arc affects the magnesium alloy plates, and as the result it makes wide heat affected zone and large distortion of the welded joint. As one of the possible means to improve quality of the welded joint, application of laser welding process may be recommended. However, the low boiling point of magnesium generates some weld defects, such as porosity and solidification cracking. Furthermore, the small laser beam diameter is very sensitive to edge preparation in butt joint. Accordingly, application of laser/ arc hybrid welding process to magnesium alloy welding was proposed. The laser/ arc hybrid welding process is a new process combining the laser beam and the arc as welding heat source. The laser beam and arc influence and assist one another. By application of hybrid welding, synergistic effects are achievable, and disadvantage of the respective processes can be compensated. In this study, welding of AZ31B magnesium alloy thin plates using YAG laser/ TIG arc hybrid welding process was investigated. In order to confirm the properties of the welded joints, tensile testing was performed.


2020 ◽  
Vol 15 (2) ◽  
Author(s):  
Subravel V

In this investigation an attempt has been made to study the effect of welding on fusion characteristics of pulsed current gas tungsten arc welded AZ31B magnesium alloy joints. Five joints were fabricated using different levels of welding speed (105 mm/min –145 mm/min). From this investigation, it is found that the joints fabricated using a welding speed of 135 mm/min yielded superior tensile properties compared to other joints. The formation of finer grains and higher hardness in fusion zone and uniformly distributed precipitates are the main reasons for the higher tensile properties of these joints


2005 ◽  
Vol 15 (1) ◽  
pp. 25-30
Author(s):  
Yong-Gil Kim ◽  
Hak-Kyu Choi ◽  
Min-Cheol Kang ◽  
Hae-Yong Jeong ◽  
Cha-Hurn Bae

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