How To Weld Thin Alloy. Welding of High Alloy Materials. When a welder uses tig welding in thick copper he must preheat the copper alloy up to 350 degrees Celcius.
How to MIG Weld Aluminium 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. When welding in narrow groove joints uses an electrode small enough to properly reach the bottom of the joint. This material and its alloys are readily fusion welded providing suitable precautions are taken.
Well for aluminum you might need as much as 15 amps per thou.
Apply the flux to the joint using the aluminum welding rod and continue to apply heat to the thick piece of aluminum. On the other hand a 5-inch thick sheet must be preheated at about 400 degrees Celcius. A welder should weld from left to right placing every weld seam from left to right rather than the opposite way. Zinc rods that have no flux do not polish or hold a polish.