TUNGSTEN INERT GAS(TIG)WELDING
tungsten inert gas (TIG) welding, also known as gas tungsten arc welding (GTAG) is an arc welding process that produces the weld with a non-consumable tungsten electrode
tungsten inert gas (TIG) welding become an overnight success in the 1940 for joining magnesium and aluminum. using an inert gas shield instead of a slag to protect the weldpool, the process was a highly attractive replacement for gas and manual metal arc welding. TIG has played a major role in the acceptance of aluminum for high quality welding and structural application.
TIG WELDING USED FOR
tig welding can be used fore more metals than any other type of process. for this reason, a variety of industries rety on tig welding. it is used in the construction of spacecraft and airplanes in the aerospace industry. auto manufacturers use tig welding on fenders for its anti-corrosive properties. tig welding is also widely employed in auto body repair shops. artists appreciate the excellent quality of tig welding using them in sculpture welding. tig welding is very use full process.
TIG WELDING ADVANTAGES AND DISADVANTAGES
on of the greatest advantages of tig welding is the amount of control it allows. a welder can control heat and amperage with precision using a foot or thumb remote control switch. the tig welder is thin, which adds to the control a welder with excellent dexterity can have over the process. as a result,tig welding is good for projects where detailed designs or curves are required on the base metal.
NOTE-as hf generates abnormally high electromagnetic emission (EM), welders should be aware that its use can cause interference especially in electronic equipment.
MATERIALS
gas tungsten arc welding is most commonly used to weld stainless steel and nonferrous materials, such as aluminum and magnesium, but it can be applied to nearly all metals, with a notable exception being zinc and its alloys. its application involving carbon steel are limited not because of process restriction, but because of the existence of more economical steel welding techniques such as gas metal arc welding and shielded metal arc welding