Gas Setting For Aluminum Welding. To weld aluminum operators must take care to clean the base material and remove any aluminum oxide and hydrocarbon contamination from oils or cutting solvents. Direct current DC should be used for welding steel and stainless steel.
When it comes to gas choices for aluminum welding there are differences from when working on mild steel. Argon 99 of the time ArgonHelium. When it comes to welding aluminum the gas choices and electrode choices are pretty simple.
When it comes to welding aluminum the gas choices and electrode choices are pretty simple.
In almost all cases the gas choices are. The most commonly used types of gases for TIG welding are Argon Ar and Helium He. There are many factors to remember and consider when preparing for a TIG weld. This is an area that requires experimentation.