A large cabinet, filled with dirty argon. Dirty argon is pumped through a a heated stainless tube filled with flake titanium which cleans it of traces of oxygen and nitrogen and water and CO and CO2 etc, and heats it up to maybe 300C after heat exchange (the tube itself is at about 650C).
The hot clean argon is passed to a) a MIG torch or b) a TIG torch.
Would the argon being hot matter insofar as the welding process goes? I'm mostly thinking of a CNC torch here, but not exclusively.
thx,
-- Peter Fairbrother