Welding Characteristics of AZ31B Magnesium Alloy/Stainless Steel Dissimilar Alloys by Dual Beam Laser Welding-Brazing Process

2012 ◽  
Vol 39 (4) ◽  
pp. 0403002
Author(s):  
李俐群 Li Liqun ◽  
郭伟 Guo Wei ◽  
檀财旺 Tan Caiwang
Keyword(s):  
Stainless Steel ◽  
Magnesium Alloy ◽  
Laser Welding ◽  
Az31b Magnesium Alloy ◽  
Beam Laser ◽  
Dual Beam ◽  
Dissimilar Alloys

Analysis on welding characteristics of ultrasonic assisted laser welding of AZ31B magnesium alloy

2018 ◽  
Vol 105 ◽  
pp. 15-22 ◽  
Author(s):  
Zhenglong Lei ◽  
Jiang Bi ◽  
Peng Li ◽  
Tao Guo ◽  
Yaobang Zhao ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Laser Welding ◽  
Az31b Magnesium Alloy ◽  
Ultrasonic Assisted

Effect of Energy Ratio on Dual Beam Laser Welding Characteristics

2017 ◽  
Vol 44 (3) ◽  
pp. 0302003
Author(s):  
马国龙 Ma Guolong ◽  
李俐群 Li Liqun ◽  
陈彦宾 Chen Yanbin
Keyword(s):  
Laser Welding ◽  
Energy Ratio ◽  
Beam Laser ◽  
Dual Beam

Investigation of Fluid Flow and Heat Transfer in 3D Dual-Beam Laser Keyhole Welding

2010 ◽  
Author(s):  
Jun Zhou ◽  
Hai-Lung Tsai
Keyword(s):  
Heat Transfer ◽  
Laser Welding ◽  
Welding Process ◽  
Solidification Process ◽  
Melt Flow ◽  
Single Beam ◽  
Keyhole Welding ◽  
Beam Laser ◽  
Dual Beam ◽  
Laser Keyhole Welding

Dual-beam laser welding has become an emerging joining technique. Studies have demonstrated that it can provide benefits over conventional single-beam laser welding, such as increasing keyhole stability, slowing down cooling rate and delaying the humping onset to a higher welding speed. It is also reported to be able to improve weld quality significantly. However, due to its complexity the development of this promising technique has been limited to the trial-and-error procedure. In this study, mathematical models are developed to investigate the heat transfer, melt flow, and solidification process in three-dimensional dual-beam laser keyhole welding. Effects of key parameters, such as laser-beam configuration on melt flow, weld shape, and keyhole dynamics are studied. Some experimentally observed phenomena, such as the changes of the weld pool shape from oval to circle and from circle to oval during the welding process are analyzed in current study.

Effect of dual beam laser welding on microstructure–property relationships of hot-rolled complex phase steel sheets

2017 ◽  
Vol 17 (1) ◽  
pp. 145-153 ◽  
Author(s):  
Mateusz Morawiec ◽  
Maciej Różański ◽  
Adam Grajcar ◽  
Sebastian Stano
Keyword(s):  
Laser Welding ◽  
Complex Phase ◽  
Steel Sheets ◽  
Beam Laser ◽  
Dual Beam ◽  
Hot Rolled

Comparison of single-beam and dual-beam laser welding of Ti–22Al–25Nb/TA15 dissimilar titanium alloys

2017 ◽  
Vol 93 ◽  
pp. 118-126 ◽  
Author(s):  
Junqi Shen ◽  
Bo Li ◽  
Shengsun Hu ◽  
Hao Zhang ◽  
Xianzheng Bu
Keyword(s):  
Laser Welding ◽  
Titanium Alloys ◽  
Single Beam ◽  
Beam Laser ◽  
Dual Beam
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