Aluminum mig welding question

[yomax4]

I suggest a cobra push pull system at about 3k and a digital Synergic twin pulse power supply at approx 7K. If this is a no go then be sure to secure the ground on clean aluminum and preset hotstart if available. if not. Start in the middle and work back. Good luck and enoy ! Aluminum is awesome.

 

[Big Barn]

I can vouch for the Cobra push-pull system. I liked it. The power source mine was attached to, (Miller 350P) not so much.....

 

[RNeumann]

Mig Welding Aluminum with a Spool Gun - YouTube

 

[RNeumann]

And good discussion on grounding etc

Mig Welding Basics - YouTube

 

[Mark @ Everlast]

Learn what true spray is and looks like. So many people try to short circuit weld aluminum.

 

[Stimw]

Check 3 things, ground- wire to clamp connection, welding wire dirty, or tip dirty.
Also spool gun connections.