Posted by Stick welding on February 24, 2013 at 12:51:50 from (96.53.210.246):
In Reply to: Re: Aluminum welders posted by c-man on February 24, 2013 at 12:18:14:
They make rods for stick welding aluminum but your MIG is a MUCH, MUCH better choice. Most people consider the stick rods a waste of time. What wire are you using? 4043 usually welds easier than 5356. I don't know what machine you're using but you could try preheating the aluminum a little if your machine isn't hot enough. There is also a slight possibility that your argon is contaminated. It's not common but we've had a couple bad argon cylinders in the last couple of months. Mostly noticeable doing aluminum TIG yet hardly noticeable welding steel. If you tried everything else and still get black welds, consider it could be contaminated argon. Your supplier should replace the cylinder if you just recently picked it up for your aluminum project.
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