Want to weld up some titanium tubing for an older motorcycle exhaust header. I would like the material to be titanium. I'm considering doing this myself in order to learn. I understand that getting to a baseline to weld titanium could become expensive.
I'm interested in understanding the following components.
How much amperage would be required in order to support titanium welding?
Are there general welder types that are more effective at accomplishing the task than others?
Is welding titanium with some sort of inert gas recommended or can the surface be exposed to oxygen during the welding process?