On the calculation of the free surface temperature of gas-tungsten-arc weld pools from first principles: Part I. modeling the welding arc

1992 ◽  
Vol 23 (3) ◽  
pp. 357-369 ◽  
Author(s):  
R. T. C. Choo ◽  
J. Szekely ◽  
R. C. Westhoff
Keyword(s):  
Free Surface ◽  
Surface Temperature ◽  
First Principles ◽  
Gas Tungsten Arc ◽  
Welding Arc ◽  
Gas Tungsten ◽  
Weld Pools

Modelling turbulent thermofluid flow in stationary gas tungsten arc weld pools

2002 ◽  
Vol 7 (3) ◽  
pp. 125-136 ◽  
Author(s):  
K. Hong ◽  
D. C. Weckman ◽  
A. B. Strong ◽  
W. Zheng
Keyword(s):  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Weld Pools

Mathematical modeling of the dynamic behavior of gas tungsten arc weld pools

2000 ◽  
Vol 31 (6) ◽  
pp. 1465-1473 ◽  
Author(s):  
Sung H. Ko ◽  
Choong D. Yoo ◽  
Dave F. Farson ◽  
Sang K. Choi
Keyword(s):  
Mathematical Modeling ◽  
Dynamic Behavior ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Weld Pools

Heating Characteristics of Gas Tungsten Arc Welding of Copper Thick Plates with Shielding Gas of Argon, Helium or Nitrogen

2007 ◽  
Vol 353-358 ◽  
pp. 2096-2099 ◽  
Author(s):  
Jiu Chun Yan ◽  
Yi Nan Li ◽  
Wei Wei Zhao ◽  
Shi Qin Yang
Keyword(s):  
Welded Joints ◽  
Arc Welding ◽  
Gas Tungsten Arc Welding ◽  
Rise Velocity ◽  
Shielding Gas ◽  
Welding Temperature ◽  
Thick Plates ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Weld Pools

The welding temperature patterns of gas tungsten arc welding for copper thick plates during Ar, He or N2 shielded arc welding were simulated, and the size of weld pools and heat-affected zones have been compared. It was predicted that the heat-affected zone in the welded joints during Ar arc welding is the widest and that during N2 arc welding is the narrowest, while the size of weld pools using Ar (preheating at 400°C), He and N2 (without preheating) shielding arc welding is very similar. Among the three kinds of gases shielded arc welding, the temperature gradient of welded joints during Ar arc welding is the least and that during N2 arc welding is the greatest. The temperature rise velocity at the arc center during N2 arc welding is the highest, and those at the zone close to the weld pool of welded joints during He arc and N2 arc welding are a few higher than that during Ar arc welding.

scholarly journals Mapping flow evolution in gas tungsten arc weld pools

2021 ◽  
Vol 179 ◽  
pp. 121679
Author(s):  
Fan Wu ◽  
Thomas.  F. Flint ◽  
Ken Vidar Falch ◽  
Michael C. Smith ◽  
Michael Drakopoulos ◽  
...  
Keyword(s):  
Gas Tungsten Arc ◽  
Flow Evolution ◽  
Gas Tungsten ◽  
Weld Pools
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