Best welding techniques for arc welding aluminium
Remove oil and grease and wire brush or sand/grind the immediate weld area. Chamfer the edges of the plates to be joined and open up cracks. Make holes to be filled wider at the top. Pre-heat heavy sections broadly. In thick-to-thin joining, preheat the the thicker material. This aluminium welding rod will run from any DC arc welding machine including engine driven welder generators. Adjust for the upper end of the recommended amperage range and reduce the amperage as welding progresses and the aluminium base material starts to absorb the heat. Burn the aluminium arc welding rod quickly and move relatively fast. When picking up each bead, welding into the previous crater before continuing.
Typical aluminium welding applications
Truck beds, bodies and frames, loading ramps and docks, pipe railings, bannisters, stairs, diamond plate, door and window frames and supports, irrigation piping, transmission housings, gear boxes, engine and motor blocks, machine bases and supports, bus bars, electrical switch boxes and mounts.