Archer Fabrications
10+ Year Contributor
- 9,734
- 695
- May 9, 2011
-
Scottsdale,
Arizona
Those all probably contributed to porous or blak welds, gas coverage is dictated by your regulator. try 20-25cfh. A gas lens would help a lot.
And always brush the aluminium with a stainless steel brush and dont use it on anything but aluminium, it can contaminate if you do.
And always brush the aluminium with a stainless steel brush and dont use it on anything but aluminium, it can contaminate if you do.