Chinese Journal of Lasers, Volume. 48, Issue 18, 1802011(2021)
Numerical Simulation of Characteristics of Laser-Hollow Tungsten Inert Gas Coaxial Composite Welding Arc
Figures & Tables(14)
Fig. 2. Cloud diagram of arc temperature distribution. (a) Laser coaxial composite arc; (b) TIG arc
Fig. 4. Cloud diagram of plasma velocity distribution. (a) Laser coaxial composite arc; (b) TIG arc
Fig. 6. Cloud diagram of arc pressure distribution. (a) Laser coaxial composite arc; (b) TIG arc
Fig. 8. Cloud diagram of arc potential distribution. (a) Laser coaxial composite arc; (b) TIG arc
Fig. 10. Cloud diagram of arc magnetic field distribution. (a) Horizontal of composite arc; (b) horizontal of TIG arc; (c) vertical of composite arc; (d) vertical of TIG arc
Fig. 11. Comparison of magnetic field. (a) Horizontal of composite arc; (b) horizontal of TIG arc; (c) vertical of composite arc; (d) vertical of TIG arc
Fig. 13. Welding joint in experiment. (a) Laser coaxial composite arc; (b) TIG arc
Table 1. Boundary condition of hollow TIG arc model
View tableTable 1. Boundary condition of hollow TIG arc model
Area Boundary type Velocity V /(m·s-1) Temperature T /K Potential φ/V Magnetic vector A /(Wb·m-1) BC Wall 0 5000 0 ∂A/∂z=∂A/∂r=0 AB, CD Pressure-outlet 1000 ∂φ/∂z=∂φ/∂r=0 0 DE, HJ, MA Velocity-inlet 2 1000 ∂φ/∂z=∂φ/∂r=0 ∂A/∂z=∂A/∂r=0 EF, LM Wall 0 1000 ∂φ/∂z=∂φ/∂r=0 ∂A/∂z=∂A/∂r=0 FG, KL Wall 0 3000 -σ∂φ/∂z=I/Sc ∂A/∂z=∂A/∂r=0 GH, JK Wall 0 1000 ∂φ/∂z=∂φ/∂r=0 ∂A/∂z=∂A/∂r=0
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Zheng Lei, Zongtao Zhu, Yuanxing Li, Yan Liu, Hui Chen. Numerical Simulation of Characteristics of Laser-Hollow Tungsten Inert Gas Coaxial Composite Welding Arc[J]. Chinese Journal of Lasers, 2021, 48(18): 1802011
Paper Information
Category: laser manufacturing
Received: Mar. 12, 2021
Accepted: Apr. 15, 2021
Published Online: Aug. 23, 2021
The Author Email: Zhu Zongtao (zongtaozhu@163.com), Chen Hui (xnrpt@163.com)
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