Machining of gamma-TiAl

Knowledge of the machining parameters for titanium aluminides of the type g amma-TiAl is essential for the acceptance and application of this new heat- resistant light-weight material for high performance components in automobi le and aircraft engines. This work evaluates drilling, turning, sawing, mil ling, electroerosion, grinding, and high-pressure water-jetting of primary castings. The results indicate that there is a potential for each machining process, but a high quality of surface finish can only be achieved by some of the processes.