Optimization of Laser-Arc Interspacing Distance during CO2 Laser-GMA Hybrid Welding by Using High-Speed Imaging

Cheol Hee Kim; Hyun Byung Chae; Jun Ki Kim; Jeong Han Kim

doi:10.4028/www.scientific.net/AMR.26-28.481

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 26-28Optimization of Laser-Arc Interspacing Distance...

Optimization of Laser-Arc Interspacing Distance during CO2 Laser-GMA Hybrid Welding by Using High-Speed Imaging

Abstract:

Laser welding has not easily been adopted in shipbuilding industry because of its poor gap bridging ability. Recently, laser-GMA hybrid welding process showed possibility to overcome the tight gap tolerance with improved productivity. The laser-arc hybrid welding process is inherently complex because it has three kinds of process parameters: arc welding, laser welding and hybrid welding parameters. In this study, welding phenomena were investigated to optimize the hybrid process parameter; interspacing distance between laser and arc. The bead surface and cross-sectional shapes were evaluated, and weld pool shape and droplet transfer were monitored by high speed camera to clarify welding phenomena.

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Periodical:

Advanced Materials Research (Volumes 26-28)

Pages:

481-484

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.26-28.481

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Online since:

October 2007

Authors:

Cheol Hee Kim, Hyun Byung Chae, Jun Ki Kim, Jeong Han Kim

Keywords:

Laser-Arc Hybrid Welding, Laser-Arc Interspacing Distance, Optimization

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