Spectroscopy and Spectral Analysis, Volume. 33, Issue 4, 890(2013)
Plasma Temperature Calculation and Coupling Mechanism Analysis of Laser-Double Wire Hybrid Welding
The plasma radiation of laser-double wire hybrid welding was collected by using fiber spectrometer, the coupling mechanism of arc with laser was studied through high-speed photography during welding process, and the temperature of hybrid plasma was calculated by using the method of Boltzmann plot. The results indicated that with laser hybrid, luminance was enhanced; radiation intensity became stronger; arc was attracted to the laser point; cross section contracted and arc was more stable. The laser power, welding current and arc-arc distance are important factors that have great influence on electron temperature. Increase in the laser power, amplification of welding current and reduction of arc-arc distance can all result in the rise of temperature.
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ZHENG Kai, LI Huan, YANG Li-jun, GU Xiao-yan, GAO Ying. Plasma Temperature Calculation and Coupling Mechanism Analysis of Laser-Double Wire Hybrid Welding[J]. Spectroscopy and Spectral Analysis, 2013, 33(4): 890
Received: Sep. 2, 2012
Accepted: --
Published Online: Apr. 8, 2013
The Author Email: Kai ZHENG (zhengkai@tju.edu.cn)