Laser-induced plasma in CO&lt;inf&gt;2&lt;/inf&gt; laser welding aluminum alloys

Wang, Xubao; Ding, Peng; Qi, Junfeng; Xiao, Rongshi; Zuo, Tao

doi:10.1109/cleopr.2009.5292688

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2012

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“…LACROIX analyzed the scattering effect in a laser-induced plasma plume in a Nd:YAG laser-welding process using a discrete ordinate scheme and the radiative transfer equation [14] . WANG measured the spectra of plasma in laser welding aluminum alloy through a transient spectrometer [15] . However, both the measurement and analysis of the features of the plasma dynamic image are less reported, especially for high-power disk laser welding.…”

Section: Introductionmentioning

confidence: 99%

Study of Dynamic Features of Surface Plasma in High-Power Disk Laser Welding

Wang

Gao

Katayama

et al. 2012

Plasma Sci. Technol.

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High-speed photography was used to obtain the dynamic changes in the surface plasma during a high-power disk laser welding process. A color space clustering algorithm to extract the edge information of the surface plasma region was developed in order to improve the accuracy of image processing. With a comparative analysis of the plasma features, i.e., area and height, and the characteristics of the welded seam, the relationship between the surface plasma and the stability of the laser welding process was characterized, which provides a basic understanding for the real-time monitoring of laser welding.

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Section: Introductionmentioning

confidence: 99%