aluminum wire bunch up

[taktoa]

ive got a millermatic 350 p mig welder. i loaded aluminum wire because thats all we really work with in my shop but the wire keeps on bunching up. we will weld about 3 posts (3 inch pipe welds each) then the wire bunches up and we end up loosing a lot of wire and time fixing the rats nest. is there anything that we can do to fix it or is it just something that we need to work around?

 

[OcalaWill]

A spool gun/torch may help.

 

[taktoa]

ive got a gun that pulls from the handle and from in the machine. maybe disable the pulling wheels on the machine and leave just the one in the gun?

 

[James1012]

Taktoa,
Al. wire is soft and when using a push pull system the drive rolls at the gun need to turn a little faster than the drive wheels in the machine that way the wire stays taunt and wont kink.

 

[bigjoe]

what size wire? loosen the rolls up a little on the machine end, it takes some tweaking to get right