"Open Air" Welding of Commercially Pure Titanium

Abstract

Titanium can be welded by TIG welding, MIG welding, EB welding and in chambers in which the atmosphere can be controlled. Of these methods, MIG welding poses certain problems such as spatter and porosity. EB welding and controlled atmosphere chamber welding impose limitations on the size of the jobs that can be welded. A more flexible, but difficult method of welding compared to other methods of welding is the TIG welding in open air. This paper describes the open air welding of titanium as developed by BHPV and the various precautions that should be taken to get welded joints of adequate ductility.