Reduction of Porosities in Pulse-MAG Welding of Galvanized Steel Sheets for a Zero-Gap Lap Joint Configuration

2018 ◽  
pp. 105-117
Author(s):  
Yuqian Huang ◽  
Wangteng Lin ◽  
Xiao Wei ◽  
Shaofeng Yang ◽  
Wei Huang ◽  
...  
Keyword(s):  
Galvanized Steel ◽  
Mag Welding ◽  
Lap Joint ◽  
Joint Configuration ◽  
Steel Sheets

Study of Fiber Laser Welding Galvanized Steel in a Gap-Free Lap Joint Configuration

Applied laser ◽  
2013 ◽  
Vol 33 (5) ◽  
pp. 498-504
Author(s):  
陈志春 Chen Zhichun ◽  
杨上陆 Yang Shanglu ◽  
王春明 Wang Chunming ◽  
胡席远 Hu Xiyuan ◽  
黎硕 Li Shuo
Keyword(s):  
Laser Welding ◽  
Fiber Laser ◽  
Galvanized Steel ◽  
Lap Joint ◽  
Fiber Laser Welding ◽  
Joint Configuration

Laser-Arc Hybrid Welding Process of Galvanized Steel Sheets

2008 ◽  
Vol 580-582 ◽  
pp. 355-358 ◽  
Author(s):  
Souta Matsusaka ◽  
Toshiro Uezono ◽  
Takuya Tsumura ◽  
Manabu Tanaka ◽  
Takehiro Watanabe
Keyword(s):  
Laser Beam ◽  
Welding Speed ◽  
High Speed ◽  
Incidence Angle ◽  
Welding Process ◽  
Galvanized Steel ◽  
Mag Welding ◽  
Hybrid Process ◽  
Deep Penetration ◽  
Steel Sheets

Galvanized steel sheets with a lap joint were welded by a laser-arc hybrid process. The hybrid system consisted of 2kW LD or YAG laser oscillator and frequency-modulated DC pulsed MAG welding machine. In this experiment, the arc traveled on the specimens, following the laser beam with the interval of 2 mm. The results showed that the hybrid process had some advantages, such as deep penetration depth, high welding speed and high gap-tolerance, in comparison with the conventional MAG welding. Observations from a high-speed digital video-camera suggested that the zinc and iron vapors induced by laser beam irradiation stabilized the arc plasma. Effects of the incidence angle between a welding head and a specimen on the weld bead formations were also discussed. As a result, the welding speed of 2.0 m/min was achieved at 1.0 mm of gap length condition when the incidence angle was 50 degree.

Study of Fiber Laser Welding Galvanized Steel in a Gap-Free Lap Joint Configuration

Applied laser ◽  
2013 ◽  
Vol 33 (5) ◽  
pp. 498-504
Author(s):  
陈志春 Chen Zhichun ◽  
杨上陆 Yang Shanglu ◽  
王春明 Wang Chunming ◽  
胡席远 Hu Xiyuan ◽  
黎硕 Li Shuo
Keyword(s):  
Laser Welding ◽  
Fiber Laser ◽  
Galvanized Steel ◽  
Lap Joint ◽  
Fiber Laser Welding ◽  
Joint Configuration
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