Continuous contact transfer behavior in bypass coupling triple-wire indirect arc welding

Continuous contact transfer mode in bypass coupling triple-wire indirect arc welding (BCTW-GIA) is proposed to pursue an optional way to ensure the high deposition rate and obtain stable depositing process. The arc behaviors, droplet transfer, and process stability with different distance between th...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology 2024-05, Vol.132 (1-2), p.99-111
Main Authors: Liu, Liming, Xu, Guomin, Li, Hao, Ba, Xianli
Format: Article
Language:English
Subjects:
Arc deposition
Arc welding
CAE) and Design
Coefficient of variation
Computer-Aided Engineering (CAD
Coupling
Droplets
Engineering
Exploding wires
Industrial and Production Engineering
Mechanical Engineering
Media Management
Original Article
Short circuits
Stability
Wire
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Summary:Continuous contact transfer mode in bypass coupling triple-wire indirect arc welding (BCTW-GIA) is proposed to pursue an optional way to ensure the high deposition rate and obtain stable depositing process. The arc behaviors, droplet transfer, and process stability with different distance between the tips ( d 1 ) of the main wire and side wires and the feeding speed of main wire (FSM) were studied. With the increase d 1 and FSM, the droplet transfer mode of main wire varied from explosive transfer to short-circuit transfer to bridge transfer. When the d 1 was greater than 4 mm, the continuous contact transfer bypass coupling triple-wire indirect arc welding can be realized and the welding process stability was improved. With the d 1 adjusted from 0 to 6 mm, the standard deviation of the current dropped from 123.8 to 53.8 and its variation coefficient from 117.33 to 39.24% at FSM = 1 m/min. The weld penetration and weld width reduced with the FSM increasing, while the weld reinforcement gradually increased.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-024-13232-4