Originally Posted by KTM640Dakar
You can TIG weld Titanium. Use a DC negative torch and keep the part under argon until the part cools below 500degrees F. You can also use a glovebox with argon flooded in it if the part is really critical.
Is this for a 50 cal? I have a customer that makes titanium recievers for 50 caliber machine guns for the US gov. Cool stuff.
A Glove Box works really nice, and not to hard to build.