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

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2006 (1)

2005 (4)

H. Staufer, Welding in the World 49, 66 (2005).

B. Hu and G. den Ouden, Science and Technology of Welding and Joining 10, 427 (2005).

B. Hu and G. den Ouden, Science and Technology of Welding and Joining 10, 76 (2005).

B. W. Shinn, D. F. Farson, and P. E. Denney, Science and Technology of Welding and Joining 10, 475 (2005).

2004 (2)

M. El Rayes, C. Walz, and G. Sepold, Welding Journal 83, (Suppl.) 147 (2004).

T. Ueyama, H. Tong, I. Yazawa, M. Hirami, K. Nakata, and M. Ushio, Welding in the World 48, 139 (2004).

2003 (2)

T. Graf and H. Staufer, Welding Journal 82, 42 (2003).

M. Kutsuna and L. Chen, Proc. SPIE 4831, 341 (2003).

2001 (2)

C. V. Hyatt, K. H. Magee, J. F. Porter, V. E. Merchant, and J. R. Matthews, Welding Research 80, (Suppl.) 163 (2001).

C. E. Albright, J. Eastman, and W. Lempert, Welding Journal 80, 55 (2001).

1993 (1)

J. Paulin and G. Simon, J. Phys. D: Appl. Phys. 26, 1523 (1993).

1979 (1)

W. M. Steen and M. Eboo, Metal Construction 11, 332 (1979).

Chin. Opt. Lett. (1)

J. Phys. D: Appl. Phys. (1)

J. Paulin and G. Simon, J. Phys. D: Appl. Phys. 26, 1523 (1993).

Metal Construction (1)

W. M. Steen and M. Eboo, Metal Construction 11, 332 (1979).

Proc. SPIE (1)

M. Kutsuna and L. Chen, Proc. SPIE 4831, 341 (2003).

Science and Technology of Welding and Joining (3)

B. Hu and G. den Ouden, Science and Technology of Welding and Joining 10, 427 (2005).

B. Hu and G. den Ouden, Science and Technology of Welding and Joining 10, 76 (2005).

B. W. Shinn, D. F. Farson, and P. E. Denney, Science and Technology of Welding and Joining 10, 475 (2005).

Welding in the World (2)

T. Ueyama, H. Tong, I. Yazawa, M. Hirami, K. Nakata, and M. Ushio, Welding in the World 48, 139 (2004).

H. Staufer, Welding in the World 49, 66 (2005).

Welding Journal (3)

M. El Rayes, C. Walz, and G. Sepold, Welding Journal 83, (Suppl.) 147 (2004).

C. E. Albright, J. Eastman, and W. Lempert, Welding Journal 80, 55 (2001).

T. Graf and H. Staufer, Welding Journal 82, 42 (2003).

Welding Research (1)

C. V. Hyatt, K. H. Magee, J. F. Porter, V. E. Merchant, and J. R. Matthews, Welding Research 80, (Suppl.) 163 (2001).

Other (3)

D. P. Pace, K. L. Kenney, and D. L. Galiher, in Proceedings of the ASM International Conference: 6th International Trends in Welding Research 442 (2002).

U. Jasnau, J. Hoffmann, and P. Seyffarth, in Proceedings of the International Conference on Robotic Welding, Intelligence and Automation pp.14-24 (2004).

N. Abe, Y. Kunugita, M. Hayashi, and Y. Tsuchitani, in Proceedings of Section G-ICALEO of Laser Institute of America 83, 155 (1997).

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