How To Weld Aluminium Sheet

Often when welding steel and stainless steel to an aluminium alloy an interlayer of pure aluminium is used which drastically reduces intermetallic formation.

How to weld aluminium sheet. I purchased all of these things at home depot. In gas welding thickness over 3 16 in. You ll also need some aluminum brazing rods. How to weld aluminum without a welder step 1.

This is the final installment of a series which began in january and continued in may. Intermetallic compounds between friction welded steels and aluminium alloys are iron aluminium based consequently it would be expected that the brittle compounds would also be formed. Constant current cc and constant voltage cv machines can be used for spray arc welding. How to mig weld aluminium.

Links to the tools and materials leah uses in this video. 4 8 mm the edges should be beveled to secure complete penetration. See tm technologies aluminum gas welding system. Welding aluminum body sheet from automotive body repair news december 1995.

The included angle of bevel may be 60 to 120 degrees. Spray arc takes a tiny stream of molten metal and sprays it across the arc from the electrode wire to the base material. 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. For thick aluminum that requires welding current in excess of 350 a cc produces optimum results.

The blue bernzomatic will work just fine but i prefer using the yellow premium touch as it s. A beginner s guide to welding brazing aluminum with alumiweld rods. Welding without filler rod is normally limited to the pure aluminum alloys since weld cracking can occur in the higher strength alloys. Then set the amperage of your welder aim at the aluminum pieces and press the button on the torch.