Method for the manufacture of turbine or compressor rotors for gas-turbine engines

Abstract

With the manufacture of turbine engine rotor drums, the opposite joining surfaces of rotor disks are brought into contact and at least one of the two rotor disks clamped into a fixture is set in a circular movement until the joining areas reach a pasty state due to the frictional heat. The circular movement of the rotor disks, in which the axis of the rotor disk moves along a circular path, is optically recorded and deviations due to imbalance are corrected by weight compensation at the fixture. Upon reaching the pasty material state the joining areas weld together, with the rotor disks being at rest and in axial alignment. Manufacture is cost-effective and guarantees precise axial alignment of the rotor disks and a long service life of the engine rotor drums.

Dependencies are inferred from the claim text.