γ-TiAl 合金的加工特性及能场辅助技术研究进展

y-TiAl alloys, duc to their low density, high specific strength and excellent high-tem-peraturc Oxidation resistance had broad application potentials in the aerospace fields. However, duc to their high brittleness and low room-temperature plasticity, they were considered typical difficult-to-machine materials, with challenges such as high cutting forces, rapid tool wcar and surface defects during the machining processes. In recent years, field-assisted machining technologies provided new Solutions to these issues. The material properties, machining characteristics, and surface integrity of y-TiAl alloys were systematically analyzed, with a focus on the research progresses of field-assisted machining technologies, including their applications in reducing cutting forces, extending tool life and improving surface quality. Additionally, the current research limitations and future development trends were sorted out, aiming to provide theoretical and technical references for the efficient machining of y-TiAl alloys.