- 1). Load a spool of aluminum MIG wire into a MIG welding machine according to the manufacturer's directions.
- 2). Attach a tank of argon gas to your MIG welding machine's gas hose by screwing the hose coupling onto the tank's air regulator.
- 3). Brush the edges of the aluminum metal with a wire brush in order to remove any corrosion and dirt.
- 4). Clamp the sheets of aluminum metal together in the configuration that you will weld them. The clamps will prevent the sheet metal from shifting during the welding process.
- 5). Hold the MIG torch 1/8 inch from the aluminum plates at a 10 degree angle with the tip of the torch facing away from the direction of travel. This "push" method of welding exposes the aluminum to heat for a greater period of time in order to melt and fuse the metal.
- 6). Move the welding torch in a circular pattern to aid in mixing the liquid metal together as you move the torch along the welding seam.
- 7). Hold the torch at the end of the welding seam for an additional few seconds to create a pool of liquid metal to fill in the edge of the plates.
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