Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20402
Title: Effect of electric and magnetic fields on plasma control during CO2 laser welding
Authors: Tse, HC
Man, HC 
Yue, TM 
Issue Date: 1999
Source: Optics and lasers in engineering, 1999, v. 32, no. 1, p. 55-63
Abstract: Feasibility in using electric and magnetic fields as a plasma control tool during high-power laser welding is explored in this paper. Preliminary results indicated that both fields can influence the shielding effect of the plasma above the keyhole. It was found that at suitable field parameters the penetration depth can be increased by more than 13%. Moreover, under the effect of both fields, the interrelation between the penetration depth and the width of bead was found. In addition, the influence of both electric and magnetic fields strength, field direction and laser power on the penetration depth and the width of bead were also investigated.
Publisher: Elsevier Science Ltd
Journal: Optics and Lasers in Engineering 
ISSN: 0143-8166
DOI: 10.1016/S0143-8166(99)00045-7
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