It is currently Tue Sep 19, 2017 2:58 pm Advanced search

Thin aluminum

Tig welding tips, questions, equipment, applications, instructions, techniques, tig welding machines, troubleshooting tig welding process

Re: Thin aluminum

Postby AndersK » Fri Sep 01, 2017 4:06 am

LtBadd wrote:AndersK, you snapped it off before starting the weld!! :lol: :lol:


So you really think I can weld? :lol:

It actually needed 2 or three bends to snap off :mrgreen:
User avatar
AndersK
Weldmonger
 
Posts: 640
Joined: Sat Mar 30, 2013 11:49 am
Location: Sweden

Re: Thin aluminum

Postby Dalzani » Sun Sep 17, 2017 6:17 pm

Hello all again.

Trying some overlaps on thin aluminum 1.5mm. I don´t know why but seems to be much more difficult then a butt joint using the same thickness. Probably the weld is good but it is VERY ugly. What i´m doing wrong?

By the way... 60A for the bead.

Thanks all.

overlap.jpg
Overlap bead
overlap.jpg (48.83 KiB) Viewed 32 times
Dalzani
New Member
 
Posts: 9
Joined: Sun Jul 30, 2017 7:46 pm

Re: Thin aluminum

Postby motox » Sun Sep 17, 2017 6:50 pm

the sheets need to be clamped as so the edge does not lift or warp.
use a backer and tack often.
if the edge lifts heat gets under the edge and melts it away.
hope this help some
craig
htp invertig 221
syncrowave 250
miller 140 mig
hypertherm plasma
morse 14 metal devil
motox
Weldmonger
 
Posts: 1289
Joined: Thu Nov 28, 2013 12:49 pm
Location: Milford Delaware

Re: Thin aluminum

Postby Dalzani » Sun Sep 17, 2017 7:00 pm

No clamps was used. And just a few tacks 3 or 4 in a 35 cm extension. Next time I´ll double the tacks and buy some long clamps. You are sure a did a lot of deviations to refill the burned edges.

Thanks.
Dalzani
New Member
 
Posts: 9
Joined: Sun Jul 30, 2017 7:46 pm

Re: Thin aluminum

Postby AndersK » Mon Sep 18, 2017 3:36 am

No too bad, just need more time to maintain consistent speed.

When welding long flat surfaces I use a small piece of fire blanket that I fold to about 4 layers. Rest your palm at it and you won't get burned and it helps you slide along easier.
User avatar
AndersK
Weldmonger
 
Posts: 640
Joined: Sat Mar 30, 2013 11:49 am
Location: Sweden

Re: Thin aluminum

Postby Dalzani » Mon Sep 18, 2017 6:01 pm

AndersK, good ideia.

And what about "Tig Finger"? Anyone knows the material used?

Thanks.
Dalzani
New Member
 
Posts: 9
Joined: Sun Jul 30, 2017 7:46 pm

Previous

Return to Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding