plastikdreams
Diamond
- Joined
- May 31, 2011
- Location
- upstate nj
hey guys, i was recently welding some .25 6061 plate to .25 wall 6061 tubing in a fillet weld...welder is a 12 or so year old lincoln 255a machine...i tried green pure tungsten, red 2% lanth, and gold 1.5% thor all 3/32" with about 20 cfm flow and up to 230 amps AC...it gave me more trouble than a little. i couldnt get it to puddle for SHIT, and when i did it would blow out and a few times actually exploded all over me...i eventually got it done but not without great frustration.
prep was 150 grit hand sand and clean with denatured alcohol. material was sourced from mcmaster.
basically most of the welds look like a bag of smashed assholes and it pisses me off. a lot of them have blackish spots on them.
i have never run into this, granted i dont weld a ton of aluminum, but still what the hell.
any ideas?
prep was 150 grit hand sand and clean with denatured alcohol. material was sourced from mcmaster.
basically most of the welds look like a bag of smashed assholes and it pisses me off. a lot of them have blackish spots on them.
i have never run into this, granted i dont weld a ton of aluminum, but still what the hell.
any ideas?