Acta Optica Sinica, Volume. 38, Issue 7, 0726001(2018)
Tungsten Inert Gas Welding Arc Radiation and Its Role in Energy Balance
Figures & Tables(9)
![Comparison between simulated and experimental[19] temperature field results of TIG argon arc with current of 200 A](/Images/icon/loading.gif){kind=icon}
Fig. 3. Comparison between simulated and experimental[19] temperature field results of TIG argon arc with current of 200 A
Fig. 4. Comparison between experimental[20] and simulated heat fluxes from TIG welding arc with current of 200 A to water-cooled copper anode
Fig. 7. Comparison of temperature fields with and without consideration of radiation of arc with current of 200 A
Table 1. Boundary conditions
View tableTable 1. Boundary conditions
Position Speed v Temperature T Electric potential V Magnetic potential A ABCD ∂ v /∂r =0∂ T /∂r =0∂ V /∂r =0∂ A /∂r =0DE v =0T =2500I =50,100,200 AÑ A ·e n=0EF ρv =10Ñ T ·e n=0Ñ V ·e n=0Ñ A ·e n=0FG-GH Constant T =300Ñ V ·e n=0A =0AI v =0T =300V =0Ñ A ·e n=0HI v =0T =300Ñ V ·e n=0A =0BH v =0Eq. (7) Ñ V ·e n=0- CKJE v =0Eq. (6) Ñ V ·e n=0-
Table 2. Role of each energy term in different areas of TIG arc
View tableTable 2. Role of each energy term in different areas of TIG arc
Zone No. t radContributor of heat increase Contributor of heat loss Major Minor Major Minor I t rad<0.5,t rad→0Ohmic heat Transport heat Radiation II t rad<0.5,t rad→0.5Ohmic heat Radiation Transport heat III t rad>0.5,t rad→0.5Ohmic heat Transport heat Radiation IV t rad>0.5,t rad→1.0Transport heat Ohmic heat Radiation Note: transport heat represents heat transferred by conduction and convection
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Fei Wang, Huan Li, Ke Yang, Yann Cressault, Philippe Teulet. Tungsten Inert Gas Welding Arc Radiation and Its Role in Energy Balance[J]. Acta Optica Sinica, 2018, 38(7): 0726001
Paper Information
Category: Physical Optics
Received: Dec. 26, 2017
Accepted: --
Published Online: Sep. 5, 2018
The Author Email: Wang Fei (wangfei2012@tju.edu.cn)
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