Deca, Mig aluminium welding,

by ahmed al hallami
(AL Ain- United Arab Emirates)

Hi there,
I bought a new mig Welding machine (DECA, Italy) since one year, to weld diamond plate 1.5mm and 2mm.

The result is:
-Very Bad & Dirty welding.
-Black welding.
-Went Thru more than 50 Nozzle, and lose money, time and plate.

I need Help Please
Set Up the machine, welding speed & gas

Regards
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I made a video on this topic recently, you can see it here...

mig welding aluminum tips









First things first.

Anything thinner than 3mm is tough to weld with mig....tig is better for thin stuff.

1.5mm and 2mm aluminum diamond plate is pretty thin for mig welding.

here are a few tips...

use .9 mm or smaller wire (.035" or smaller)
for that thickness aluminum sheet.

push dont pull whenever possible.

when soot appears , it means poor argon coverage.

( you are using pure argon ...right?)

gases used for mig welding steel will not work on aluminum,,,you need pure argon.

I shot this video recently on mig welding aluminum using a Hobart IronMan 230 machine.

I was having trouble with soot as well and found that by using a small piece of scotch brite as a diffuser, the shielding gas worked better and I got less soot.