A process for milling the rotor of a turbomolecular pump

摘要

A process for milling the rotors of turbomolecular pumps comprises the following steps: a monolithic rotor (1) having disks (3, 5) obtained through turning is inserted into a mold into which an amount of resin has been disposed and melted. The mold with the rotor (1) is brought into a furnace to obtain a uniform distribution thereof; then it is cooled, the rotor (1) is extracted from the mold and is milled to create the blades (7). The residual resin is melted and removed by bringing the rotor (1) back to the furnace, and thereafter the blades (7) are deburred.