I'm pretty sure it stands for Gas-Tungsten Arc Welding.
GAS TUNGSTEN ARC WELDING
The tip of the tungsten electrode has to be hot in GTAW because you are trying to weld two pieces of metal together, and that takes a lot of heat.
The main difference between these two types of welding is that GTAW uses gases to create the weld whilst SMAW uses an an electrical current. Both are very popular welding processes.
CO2 is an oxygen compound or a non-inert gas,the purpose of a shielding gas is to shield the weld and the electrode from oxygen. argon, nitrogen and helium are the most common gases used for GTAW
Tgs 50
GTAW is the Gas-Tungsten Arc Welding process A defect means something's wrong with the weld. There are hundreds of kinds, and every kind of defect has a different cause--and sometimes there are seven or eight causes for one defect.
GTAW is commonly used to weld thin slections of stainless steel and non-ferrous metals luike aluminum, magnesium and copper alloys. The gas shield is never removed to prevent oxidation of its surface and contamination of the weld.
Bohler EASN 2 Si-IG for GTAW Bohler FOX EAS 2Si for SMAW
TIG (Tungsten Inert Gas, or GTAW) welding at the link below. I don't know about others, but this is one I saw in class
A C, with high frequency superimposed, when welding Aluminum. D C straight polarity on almost everything else.
Choosing one of the six commonly available tungsten electrodes is a crucial first step in successful gas tungsten arc welding (GTAW).
For GTAW Process use ER90-B9 and for the SMAW Process use E 9018-B9, or E 9015-B9