Combination welding between CO<sub>2</sub>laser beam and MIG arc

Makino, Yoshinobu; Shiihara, Katsunori; Asai, Satoru

doi:10.1080/09507110209549499

Cited by 12 publications

(2 citation statements)

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“…[1][2][3][4] However, development of the hybrid process has only occurred more recently, as higher power lasers have become more widespread in industrial fabrication, and work has concentrated on addressing the larger number of welding parameters that influence the quality and productivity of hybrid welding. [5][6][7][8] Current hybrid welding process combinations include coaxial Nd:YAG laser/TIG, Nd:YAG and CO 2 laser/MAG, and laser/plasma. [8][9][10] Hybrid welding combines the advantages of laser welding (high travel speeds, deep penetration and low distortion) with those of arc welding (including filler additions, higher tolerance to fit-up and better mechanical properties).…”

Section: Introductionmentioning

confidence: 99%

“…[5][6][7][8] Current hybrid welding process combinations include coaxial Nd:YAG laser/TIG, Nd:YAG and CO 2 laser/MAG, and laser/plasma. [8][9][10] Hybrid welding combines the advantages of laser welding (high travel speeds, deep penetration and low distortion) with those of arc welding (including filler additions, higher tolerance to fit-up and better mechanical properties). 11 Consequently, the hybrid process is gaining broader acceptance within industry, and is currently used in automotive manufacture and shipbuilding.…”

Section: Introductionmentioning

confidence: 99%

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Microstructures and properties of laser/arc hybrid welds and autogenous laser welds in pipeline steels

Moore¹,

Howse²,

Wallach³

2004

Science and Technology of Welding and Joining

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Lasers are capable of producing welds with deep penetration, low distortion and faster travel speeds, compared to arc welding. More recently, laser/arc hybrid welding processes have also been generating interest for industrial fabrication. In this paper, six carbon–manganese, mainly pipeline, steels were welded using both autogenous Nd:YAG laser welding, and Nd:YAG laser/MAG hybrid welding. The improvements in weld microstructures and weld metal toughness that are possible when using the hybrid process are described and illustrated. Laser/arc hybrid welding is shown to be a process that can generate good quality welds in commercially available pipeline steels. It also has the potential to complete girth welds in these steels with significantly fewer welding passes than are currently required for arc welded pipelines, reducing the joint completion time.

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