HYBRID BONDED TURBINE ROTORS AND METHODS FOR MANUFACTURING THE SAME

摘要

Hybrid bonded turbine rotors and methods for manufacturing the same are provided. A hybrid bonded turbine rotor comprises a turbine disk and a plurality of turbine blades each metallurgically bonded to a corresponding raised blade attachment surface of a plurality of raised blade attachment surfaces of the turbine disk to define a bond plane located at a selected radial position. Turbine disk has a rim portion comprising a live rim of circumferentially continuous material and a plurality of live rim notches in an outer periphery of the turbine disk alternating with the plurality of raised blade attachment surfaces defining the outer periphery. The selected radial position is outboard of the live rim. Each pair of adjacent turbine blades defines a shank cavity therebetween. The shank cavity extends radially outwardly from the live rim and includes a live rim notch disposed below the bond plane and above the live rim.

主权项

1. A hybrid bonded turbine rotor comprising:
a turbine disk having a rim portion comprising:
a live rim of circumferentially continuous material;a plurality of live rim notches in an outer periphery of the turbine disk alternating with a plurality of raised blade attachment surfaces defining the outer periphery; and a plurality of turbine blades each metallurgically bonded to a corresponding raised blade attachment surface of the plurality of raised blade attachment surfaces to define a bond plane located at a selected radial position outboard of the live rim; wherein each pair of adjacent turbine blades defines a shank cavity therebetween, the shank cavity extending radially outwardly from the live rim and including a live rim notch of the plurality of live rim notches, the plurality of live rim notches being disposed below the bond plane and above the live rim.