How To Use Aluminum Welding Machine. You may also use a strong soap such as Oil Eater CleanerDegreaser. Clamp up the tubing and start heating the aluminum with a propane torch.
How to setup tig welder for aluminum. For aluminum welding you should buy a shielding gas of pure argon which is the combination of argon and carbon dioxide CO2. AC refers to Alternating Current.
To prevent wire chaffing try to restrain both ends of the liner to eliminate gaps between the liner and the gas diffuser on the gun.
AC mode gives the best results for aluminum welding DC can also be used but the quality will be compromised. While MIG and TIG are commonly used methods for welding aluminum there are several other types of welding that can be used. To MIG weld aluminum thinner than 14 gauge 074 inch it may be necessary to use specialized pulsed MIG or AC TIG welding equipment. Aluminum will start to melt at 1200deg Fahrenheit but the brazing rod will melt at around 700deg so we want to get the aluminum hot enough to melt the rod without melting the tubing.