TIG Welding an Aluminum lap joint uphill with nothing to prop on but the hot aluminum.
16ga 6061 aluminum using 1/16" (1.6mm) 4043 filler.
I used a tapered 2% lanthanated 3/32" (2.4mm) tungsten.
Welding small aluminum coupons with a chill backing,
This can also be done without backing but on small pieces of aluminum heat can saturate the piece and the puddle gets very watery.
Chil...
You’ve probably read how aluminum needs to be really cleaned thoroughly before welding.
A lot of aluminum can be tig welded without doing a whole lot of cleaning it really depends on the application.
For general fabrication, often times a wipe with acetone or alcohol will do the trick if the me...
Doesnt do much good to have 280 amps if your tig torch is only rated at 150 amps.
So I hooked up a water cooler and water cooled tig torch and brought you along in case you need to do the same
