HYBRID BONDED TURBINE ROTOR AND METHOD OF MANUFACTURING THE SAME

摘要

An hybrid bonded turbine rotor (110) and a method of manufacturing the same are provided. A hybrid bonded turbine rotor (110) comprises a turbine disk (122) and a plurality of turbine blades (124) each metallurgically bonded to a corresponding raised blade attachment surface of a plurality of raised blade attachment surfaces of the turbine disk (122) to define a bond plane located at a selected radial position. The turbine disk (122) 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 8122) altemating 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 (124) 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.