has your wire feed rate slowed down,slipping rollers ectHi, I'm pulse welding 3mm aluminium quite happily then all of a sudden I start goin' thru loads of contact tips. How many possible causes can you think of that bring about this problem? Thanks in advance!!!!
your liner may be getting blocked with ali as it passes through leaves a build up which clogs and strangles the wire , this is the reason for spool guns when migging Ali , no liners to bung up !
Alu mig is a temperamental process at the best of times and any thing slight can cause wire feed trouble, the out come is either a mess on the tip or a birds nest at the feed rollers.
You really need an Ali kit for your welder if your to have success. U shape feed rollers as to not deform the wire, if it's a 4 roll feeder you need a Teflon guide tube between the rolls to prevent it bending there, a Teflon liner through the torch which ideally wants to be no longer than 3 Mtrs.
Yes a spool gun or push pull torch is the optimum solution but then it gets bigger bucks.
How's the Ali Tig going so far.Ain't that the truth!! I have been very successful with MIG on aluminium but it's a pain in the ass and is the reason I have taken up TIG on aluminium instead!!
How's the Ali Tig going so far.