How To Tig Weld Aluminum Without Warping. Keep the torch in a steady forward-moving position with a slight backward tilt of 5 to 15 degrees. Well for aluminum you might need as much as 15 amps per thou.
With a little bit of practice you will be able to generate decent welding results even if you are just a beginner in the field. Use a solvent such as acetone or a mild alkaline solution like a strong soap to remove any oil grease and water vapor from the aluminums surface. Welding on both sides of the plate offsets one shrinkage force with another to minimize warpage Figure 4.
Id start by dividing the seam length into thirds and take near middle and far.
We cover basics for beginners who want to TIG wel. Wanted to build with sides made of full sheets of 14 6061 aluminum but the engineer had other plans. Use a solvent such as acetone or a mild alkaline solution like a strong soap to remove any oil grease and water vapor from the aluminums surface. Long story short the sides have to be welded together to make a full.