Experimental Study on Critical Speed of Laser-Arc Hybrid Welding

Ming, 高明 Gao; Zheng, 熊征 Xiong; Xiaoyan, 曾晓雁 Zeng; Jun, 严军 Yan

doi:10.3788/cjl20093609.2438

Cited by 4 publications

(1 citation statement)

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“…In laser-double wire hybrid welding process, the heat source was the combination of laser beam and two electric arcs. The joined laser changed intensity of electromagnetic field, arc stress field, droplet stress field and welding temperature field, which were the root cause of the change in metal transfer mode [3] .…”

Section: Results and Analysismentioning

confidence: 99%

Effect of Laser Beam on Double Wire Pulsed MIG Welding Process

Lou

Wang

et al. 2011

AMM

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Based on the coupling of laser beam and double arcs, a novel process was investigated. This research set up the laser-double wire pulsed MIG hybrid welding system. Meanwhile the current and voltage sensors were used to detect welding current and arc voltage wave-form and high-speed videography system was used to observe the metal transfer process and arc behavior. The three signals were acquired synchronously. The results showed that the synergic action of the three different heat sources leads to a change in metal transfer mode. It was revealed that the metal transfer mode was two droplets per pulse in laser-double wire hybrid welding process while one droplet per pulse in double wire welding process with the same certain experiment parameters. And we also discovered that the arcs were attracted strongly by the laser beam.

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Section: Results and Analysismentioning

confidence: 99%

Effect of Laser Beam on Double Wire Pulsed MIG Welding Process

Lou

Wang

et al. 2011

AMM

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Microstructure and mechanical properties of laser beam welded 10 mm-thick Q345 steel joints

Xie,

Tu,

Nian

et al. 2023

Welding International

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Study on Downhill Welding Mild Steel Using Laser-MAG Hybrid Welding

Zhang

Luo

2012

Materials and Manufacturing Processes

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In this article, the idiographic critical values of welding velocity and inclination angle in neodymium-doped yttrium aluminum garnet (Nd:YAG) laser-melt active gas (MAG) hybrid welding on downhill welding Q235B mild steel in comparison with MAG welding are investigated. Results show that enhancing heat input augments the critical welding velocity and critical inclination angle between the welding plate and the horizontal plane in downhill MAG welding and laser-MAG hybrid welding. Besides, compared with MAG welding, the critical welding velocity and inclination angle in laser-MAG hybrid welding are greater because of the addition of YAG laser. Furthermore, in the MAG welding and hybrid welding, the variational trends of inclination angle and welding velocity are consistent, because of the molten metal filling welding seam to form eligible welding joint and the gravity of droplet changing with appropriate welding parameters.

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Experimental Study on Critical Speed of Laser-Arc Hybrid Welding

Cited by 4 publications

References 0 publications

Effect of Laser Beam on Double Wire Pulsed MIG Welding Process

Effect of Laser Beam on Double Wire Pulsed MIG Welding Process

Microstructure and mechanical properties of laser beam welded 10 mm-thick Q345 steel joints

Study on Downhill Welding Mild Steel Using Laser-MAG Hybrid Welding

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