TWI Industrial Member Report Summary 442/1992
By W A Baeslack III, P L Threadgill and E D Nicholas
Titanium aluminide alloys based on the Ti3Al compound offer significant potential as a high temperature structural material in advanced gas turbine engines. It is therefore important to understand how to join them to themselves and other titanium alloys. Rotary friction welding is widely used in the gas turbine industry for radially symmetrical components, but there are many applications where a linear motion would be useful. This study investigates the linear friction welding of a Ti-14Al-21Nb weight % intermetallic alloy to itself, and to a Ti-6242 alloy.