Author:
Michael Kulikowski
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Date Posted: 05:14:54 08/23/02 Fri
In reply to:
Wynand
's message, "re: MIG welding aluminum with no success" on 19:11:32 08/21/02 Wed
Hello,
I learned to weld on aluminum with a Lincoln 135 Pro and was able to get great beads on 1/8" aluminum. My secret was to clean the heck out of the weld area with a SS brush and then I preheated the metals with a small propane torch for about 20 seconds. Make sure you do not go above 300 degrees F or you will mess it up, use a temp indicating crayon if you want. I am willing ot bet if you do this you and your welder will be much happier. The aluminum will turn into a huge heatsink and demand everything your welder has got to get a bead started, that's where the preheat helps. Feel free to email at mkulikow@us.ibm.com if you have any other questions.
Also.....with that 120V MIG I was able to get 100% penetration and good beads on 1/4 Al plate using preheat.
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Re: re: MIG welding aluminum with no success