TIG

TIG welding may be one of the more difficult welding processes to learn but once you get it down it just looks and feels like you should have been doing it all along.

Here's some tips to get you started:

• TIG = Tungsten Inert Gas

• GTAW = Gas Tungsten Arc Welding

• Tungsten Melting Temp.=3375ºC (6100ºF)

• Water cooled torch for amperage’s over 150 A

• TIG machines must produce a constant current (CC) 

• Mild and stainless steel = DCEN (approx. 2/3^rds of heat in workpiece, 1/3^rd of heat in electrode)

• Aluminum = AC or ACHF (Greater current during the DCEN half cycle and a reduced DCEP half cycle)

• Water Cooling Pressure = Around 35 psi (245 kPa), approx. 1L per minute.

• Pulsed Current used for thinner materials and for vertical and overhead positions.