Optimization of laser beam welding process parameters to attain maximum tensile strength in AZ31B magnesium alloy

2010 ◽  
Vol 42 (8) ◽  
pp. 1253-1260 ◽  
Author(s):  
G. Padmanaban ◽  
V. Balasubramanian
Keyword(s):  
Tensile Strength ◽  
Magnesium Alloy ◽  
Laser Beam ◽  
Process Parameters ◽  
Laser Beam Welding ◽  
Welding Process ◽  
Az31b Magnesium Alloy ◽  
Maximum Tensile Strength

Experimental Study of Laser Beam Welding Process Parameters on AISI 4130-309 Joint Strength

2020 ◽  
Vol 22 ◽  
pp. 2741-2750
Author(s):  
B. Narayana Reddy ◽  
P. Hema ◽  
G. Vishnu Vardhan ◽  
G. Padmanabhan
Keyword(s):  
Experimental Study ◽  
Laser Beam ◽  
Process Parameters ◽  
Joint Strength ◽  
Laser Beam Welding ◽  
Welding Process ◽  
Aisi 4130

Welding of AZ31B Magnesium Alloy by YAG Laser/ TIG Arc Hybrid Welding Process

2004 ◽  
Vol 449-452 ◽  
pp. 417-420 ◽  
Author(s):  
Taewon Kim ◽  
Jong Cheol Kim ◽  
Yu Hasegawa ◽  
Yasuo Suga
Keyword(s):  
Magnesium Alloy ◽  
Laser Beam ◽  
Welded Joint ◽  
Welding Process ◽  
Beam Diameter ◽  
Hybrid Welding ◽  
Yag Laser ◽  
Az31b Magnesium Alloy ◽  
Welding Arc ◽  
Joint Application

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.

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