How To Weld Aluminium With A Gasless Mig. How to MIG Weld Aluminium. I havent used or seen cored al mig wire would be great if it worked.
While the too thin wire makes aluminum hard to feed the thicker. You need to install one of the gears which are included in the no gas welder kit. The welder should be set up with a positive earth and negative electrode for gasless welding.
Using a spool gun eliminates the possibility of birdnesting because the wire only feeds a few inches.
The process will require more heat than mild steel which is the most common metal used in MIG welding jobs. Pushing the torch with gasless MIG wire creates slag inclusions and weld defects. You should adjust the settings and use wires with low crack sensitivity to minimize porosity cracking and other defects. To use a gasless MIG welding you should.