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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 6, Iss. 1 — Jan. 10, 2008
  • pp: 47–50

Influences of laser in low power YAG laser-MAG hybrid welding process

Ruisheng Huang, Liming Liu, and Fan Zhang  »View Author Affiliations


Chinese Optics Letters, Vol. 6, Issue 1, pp. 47-50 (2008)


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Abstract

The influences of laser defocusing amount Delta z, laser power P, space distance DLA between laser and arc on weld penetration, arc modality and stability are investigated in low power YAG laser and metal active gas (laser-MAG) hybrid welding process. The experimental results indicate that the effects of laser-induced attraction and contraction of MAG arc are emerged in hybrid welding process, which result in the augmentation of hybrid welding energy. When DLA=-0.5-2 mm, Delta z=-2-2 mm and P?73 W, the synergic efficiency between laser and MAG arc is obvious, the cross section at the root of hybrid arc is contracted and the hybrid weld penetration is increased. The maximal ratio of hybrid/MAG weld penetration is 1.5 and the lowest YAG laser power that augments MAG arc is 73 W. The input of YAG laser makes the stabilities of arc ignition and combustion prominent in hybrid welding process.

© 2008 Chinese Optics Letters

OCIS Codes
(140.3390) Lasers and laser optics : Laser materials processing
(350.2660) Other areas of optics : Fusion
(350.3390) Other areas of optics : Laser materials processing
(350.5400) Other areas of optics : Plasmas

Citation
Ruisheng Huang, Liming Liu, and Fan Zhang, "Influences of laser in low power YAG laser-MAG hybrid welding process," Chin. Opt. Lett. 6, 47-50 (2008)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-6-1-47


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