title: [Diagnosis and analysis of high power YAG laser and MAG arc hybrid source with spectral information].
abstract: High power YAG laser and MAG are hybrid source is a promising material processing heat source for future industry application Diagnosis of the plasma state is critical for better understanding of the coupling effect, application of the source and optimization of the hybrid parameters. Through establishing a hollow probe spectral collecting system, Avaspec-Ft-2 high speed digital spectrometer was applied for collecting the spectral information of hybrid are plasma. The hollow probe scans the plasma body to acquire the spatial distribution of the YAG laser-MAG hybrid are spectrum. The radiation intensity in specific spectral zone was acquired for analysis of the radiation variation when the laser beam was hybrid with the MAG arc. High speed photo was also applied for comparison of the plasma with and without laser beam coupling. Furthermore, line spectra of Fe I were selected for calculating the electronic temperature of the hybrid plasma with Boltzmann plot method. The results show that energy of the hybrid plasma focused on the weld plate with high intensity and wider acting zone. The electronic temperature increased in the center of the hybrid plasma.
authors.affiliation: Welding Research Center, North University of China, Taiyuan 030051, China. lizhiyong@nuc.edu.cn
authors.forename: Zhi-yong
authors.initials: ZY
authors.lastname: Li
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Xu-you
authors.initials: XY
authors.lastname: Wang
authors.forename: Huan
authors.initials: H
authors.lastname: Li