Visual Observation of Plasma Morphology During Fiber Laser-TIG Arc-Hybrid Welding

Jianglin Zou; Lida Wang; Baoqi Zhu; Rongshi Xiao; Qiang Wu; Kai Zheng

doi:10.3788/CJL201946.1202007

Chinese Journal of Lasers, Volume. 46, Issue 12, 1202007(2019)

Visual Observation of Plasma Morphology During Fiber Laser-TIG Arc-Hybrid Welding

Jianglin Zou^1、*, Lida Wang¹, Baoqi Zhu¹, Rongshi Xiao¹, Qiang Wu¹, and Kai Zheng²

¹High-Power and Ultrafast Laser Manufacturing Laboratory, Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China

²CRRC Qingdao Sifang Co., Ltd., Qingdao, Shandong 266111, China

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Figures & Tables(9)

Fig. 1. Diagram of hybrid welding experiment

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Fig. 2. Typical morphology of hybrid welding plasma

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Fig. 3. Multi-imaging features of plasma during hybrid welding with laser-TIG arc mode

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Fig. 4. Time-dependent areas of first three images during hybrid welding with laser-TIG arc mode. (a) The first image; (b) the second image; (c) the third image

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Fig. 5. Time-dependent areas of first three images with single arc mode. (a) The first image; (b) the second image; (c) the third image

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Fig. 6. Multi-imaging features of plasma during hybrid welding with TIG arc-laser mode

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Fig. 7. Time-dependent areas of first three images during hybrid welding with TIG arc-laser mode. (a) The first image; (b) the second image; (c) the third image

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Fig. 8. Multi-imaging morphology of plasma during hybrid welding with He shielding gas

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Table 1. Welding parameters
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Table 1. Welding parameters
No. Laser power P /kW Arc current I /A Welding speed v /(m·min^-1) Shielding gas Welding mode
1 3 150 2 Ar Laser-TIG arc mode
2 0 150 2 Ar Laser-TIG arc mode
3 3 150 2 Ar TIG arc-laser mode
4 3 150 2 He Laser-TIG arc mode

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Jianglin Zou, Lida Wang, Baoqi Zhu, Rongshi Xiao, Qiang Wu, Kai Zheng. Visual Observation of Plasma Morphology During Fiber Laser-TIG Arc-Hybrid Welding[J]. Chinese Journal of Lasers, 2019, 46(12): 1202007

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