Welding Aluminum How To. Gas tungsten arc welding GTAW also known as tungsten inert gas TIG welding is one of the most popular welding processes chosen for aluminum. Laser welding is also a good option.
Strike a clean welding electrode around an inch from the start of your weld then quickly move it over to the point where you want to start welding. Figure 1 shows how the HAZ softening occurs in non-heat-treatable aluminum alloys such as 3003 type welded. Welding aluminum presents some unique challenges compared to welding steel or other common materials particularly in terms of the chemistry and crack sensitivity.
How to MIG Weld Aluminium.
Clamp up the tubing and start heating the aluminum with a propane torch. Using any propane torch or putting it inside an oven could be enough. Preheat Your Workpiece. Firstly you need to get your flux-coated aluminum electrode ready prepare the base metal set the current and polarity on the welding machine right and start welding.