Patent ID: 8336206
Filing Date: 2012-12-25
Classification: F01D,Y10T

Abstract:
1. A process of forming a turbine rotor blade comprising the steps of: forming a shell from a plurality of shell segments each having an airfoil cross sectional shape with a pressure side wall and a suction side wall with a pair of adjacent ribs extending across the airfoil walls and forming a radial extending passage between the adjacent ribs; forming a plurality of retainer occupying spaces on at least one of the adjacent ribs; forming a spar with a radial extending projection having a row of cavities on a forward or an aft side; placing the shell segments on the spar to form the shell; pouring a non-solid retainer material into the shell retainer occupying spaces and the spar cavities to fill the spaces and the cavities; and, hardening the non-solid material to form a retainer to secure each shell segment to the spar separately.