It remains challenges to machine advanced aero-engine powder metallurgy turbine disk with structure integration. Low cutting efficiency
poor surface quality and distortion are the major obstacles. Therefore
researchers in the world have proposed many ways to process turbine disk. This paper reviews the structures of powder metallurgy turbine disks and their cutting properties
discussing the key issues in machining along with existing methodology
as well as surface integration after machining. Finally
the article summarizes some of the tool selecting principles available. It is believed combining wire electrical discharge machining (WEDM) and the super-hard abrasive grinding may be an effective and economic process for final finish of powder metallurgy turbine disks.