How to Weld Aluminum With a Wire Welder
Aluminum welding can be very challenging as the metal oxidizes easily outdoors. the oxidation contaminates the weld and in certain cases may present a fire threat. The right planning of a wire welder is an important thing to achieve in aluminum welding.
How to Weld Aluminum With a Stick Welder
- Use a wire tip greater than the wire scale to position the wire welder in place. Recess the welder touch tip in the nozzle of the solder tip around 1/8-inch. Remove it and substitute it with a plastic or Teflon lining if your welder has metal linen for steel that will not attach to the aluminum wire.
- Place an aluminum wire spool of 1 mm on the solder and push it into the wire. Continue to feed the wire to the tip of the wire.
- Attach the wire welder as a shielding gas to a tank of pure argon gas. The argon helps avoid flames and blowouts from oxidation and stops oxygen from adding to the metal you attempt to solder.
- Clean the surfaces of aluminum that you are welding. Clean the metal with a clean in stainless steel made for metal use; make sure you have a brush never used on stainless steel. Brush the metal away from the seam in a single direction to avoid spreading oxidized aluminum to the area you are welding.
- Attach a heat sink of brass to the aluminum and position it as near as possible to the soldering area. The brass won't respond with aluminum, meaning that an unnecessary heat sink is eliminated equally, minimizing the possibility of a warp.
- Link the electric connection of the welder to the metal. Switch on the gas flow and welder shielding. Create your metal arc. Turn the voltage and feed the wire so that the tone of the arc varies substantially and the tone is similar to an aerosol spray and this sound adjustment reveals that you have made a "spray arc."
- Start welding the seam to make it possible to form a pool of molten aluminum between the two pieces. Tilt the nozzle away from 10-15 degrees, so that the arc will shift the molten metal bead so that the weld is still slightly ahead of the nozzle.
- Be sure the weld tip moves because it retains the feed of the wire and doesn't overheat any of the sheets. As the heat is rapidly dispersed by aluminum, you must hold the weld forward such that the welds can cool easily.
- Shut down the wire welder, detach from the metal, then dismount and clean the welder until the welds have been done.