Influence of synchronous magnetic pulse on short circuit transfer CO<sub>2</sub> arc welding process

ZOU Wenfeng; LI Yiwen; MEI Qiang; Babkin Aleksandr; CHANG Yunlong

doi:10.12073/j.hjxb.20200313002

TRANSACTIONS OF THE CHINA WELDING INSTITUTION > 2020 > 41(9): 16-21. > DOI: 10.12073/j.hjxb.20200313002

ZOU Wenfeng, LI Yiwen, MEI Qiang, Babkin Aleksandr, CHANG Yunlong. Influence of synchronous magnetic pulse on short circuit transfer CO₂ arc welding process[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(9): 16-21. DOI: 10.12073/j.hjxb.20200313002

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Influence of synchronous magnetic pulse on short circuit transfer CO₂ arc welding process

1.
School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110870, China
2.
Lipetsk State Technical University. Lipetsk, 398024, Russia

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Received Date: March 12, 2020
Available Online: November 24, 2020

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Abstract

Abstract

The short-circuit transfer of CO₂ gas shielded arc welding is widely used in manufacturing industry, but there are many problems such as spatter, poor formation,unstable transition, etc. in this welding process, especially during higher welding current. A new approach to solve the problems were put forward through applying a synchronous magnetic field. The effect of the synchronous magnetic field with different types on arcing phase was investigated. The short-circuit transfer processes were captured through high-speed camera system with laser backlight to observe the droplet transfer process, calculate droplet size and transfer frequency, etc. The experimental results showed that the droplet transfer frequency was increased, the short-circuit metal transfer process was more stable, the shape of droplet was changed evidently from a round or ellipsoid with sharp tip to flat end, and the dimension of droplet was reduced.
- short-circuit transfer,
- synchronous magnetic field,
- CO₂ arc welding,
- droplet transfer frequency,
- the morphology of droplet

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References

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Influence of synchronous magnetic pulse on short circuit transfer CO₂ arc welding process