Have a project which requires 1/4" 6061 plate be welded to 1/16 wall tube
What risk is there of success welding these 2 together? I've read that
pre-heating the parts to 400F-plus will minimize possibility of blow-out of
Is this do-able with minimal risk?
The only questionable part of the equation is the weldor. I would set it up
with some scraps of identical material before touching the good stuff. Keep
the heat and puddle on the thick piece, and if and when possible, position
it flat, horizontal, or other position where the puddle is controllable to
flow from thin to thick, as vertical with thin piece down. Keep the
electrode aimed at the thin metal yet not touching it, but about two rod
diameters away from the thin. Don't carry the puddle to the thin until it
has formed on the thick and it flows to the thin. Don't let the arc get
close enough to the thin, or it will eat a hole in it in a millisecond.
HTH - and good luck. Practice on scrap, because on the good stuff, you only
get one try.
Steve. Welding since 1974 2g, 3g, 4g, 6g, 6gTIG, and 2g 36" dia. 1.5" wall
thickness oil caisson with FCAW .072" wire and Argon shield, 6010++ open
root. All X ray. Now I do acceptable honey doos.