Laser enhanced short-circuiting metal transfer in GMAW

被引：0

作者：

Jia Y. ^{[1
]}

Chen S. ^{[1
]}

Xiao J. ^{[1
]}

Wang L. ^{[1
]}

机构：

[1] College of Mechanical Engineering & Applied Electronics Technology Beijing University of Technology, Beijing

来源：

Hanjie Xuebao/Transactions of the China Welding Institution | 2018年 / 39卷 / 07期

关键词：

Forced short circuiting; GMAW; High speed camera; Laser enhanced; Short circuiting transfer;

D O I：

10.12073/j.hjxb.2018390174

中图分类号：

学科分类号：

摘要：

The high energy density of the laser beam irradiated the droplet to make it be subjected to local strong evaporation, and the laser recoil force was used to drive the droplet to be forced short circuit, which promoted the droplet to be detached from the wire. Taking the mild steel as the research object and using the high speed camera equipment, the laser enhanced GMAW short circuiting transfer welding test system was built. The influence of laser incident position and arc height on the transfer behavior of droplet short circuit in GMAW short circuiting transfer welding process were studied. The results show that the laser has a significant effect on the short circuiting transfer behavior of the droplet during the welding process. The force state of the droplet can be changed, which can control the size of the droplet. The droplet short circuiting time decreases, while the arcing time and transfer frequency increase, which improves the stability of the welding process. After the laser is applied, the metal transfer is much more frequent and robust. The bead formation looks fine and uniform. © 2018, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.

引用

页码：51 / 54

页数：3

共 7 条

[1] Chang Y., Liu X., Lu L., Et al., Research status and prospect of short-circuiting CO2 gas-shielded arc welding, Welding Technology, 42, 3, pp. 1-5, (2013)
[2] Zhu C., Xu X., Yao Z., Et al., Development of CO2 gas shielded droplet short-circuit transfer arc welding, Electric Welding Machine, 12, 12, pp. 48-51, (2004)
[3] Zhu Z., Wu W., Chen Q., Molten droplet size control in short-circuiting CO2 arc welding, Transactions of the China Welding Institution, 28, 4, pp. 1-4, (2007)
[4] Wei H., Li H., Wang X., Et al., Hybrid interaction of laser and pulsed MIG arc and its influence on metal transfer, Transactions of the China Welding Institution, 32, 11, pp. 41-44, (2011)
[5] Liu L., Huang R., Cao Y., Behavior analysis of low power yag laser-gas metal arc welding hybrid welding arc plasma, Chinese Journal of Lasers, 36, 12, pp. 3167-3173, (2009)
[6] Zhu J., Jiao X., Qiao X., Et al., Experiment on metal transfer control of laser enhanced GMAW welding, Transactions of the China Welding Institution, 35, 8, (2014)
[7] Chen X., Wang H.X., A calculation model for the evaporation recoil pressure in laser material processing, Journal of Physics: Applied Physics, 34, pp. 2637-2642, (2011)

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