[bdebde]

I have welded titanium. I would not want to try it on a ring. It is quite difficult even for the best of welders. Much prep and cleanliness are required. It must also be welded in a 100% argon atmosphere (sealed box). Any contaminants on the material or in the weld gas will cause discoloration. Not what you want on a ring. The time and procedures required are why most will say it can't be done.