High-throughput dry drilling of titanium aluminide

Abstract

There is always an increasing interest in and demand for materials with superior properties, particularly in aerospace and automobile industries. Intermetallic titanium aluminides have been recognized as the possible material that could be used in high-performance applications. The understanding of the machinability during various machining processes is very much essential in order to widen the usage of these materials over various fields of application. Drilling, particularly with high aspect ratio, is a complex machining process that has to be explored. In the present work, machinability of titanium aluminide has been evaluated during high-throughput dry drilling, based on thrust, torque, surface integrity, and chip morphology.