Patent ID: 9114488
Filing Date: 2015-08-25
Classification: B22F,B23P,C22C,F04D,F05D,Y10T

Abstract:
1. A method of forming a rotationally mounted rotor component having at least one internal void enclosed therein in at least one selected area thereof comprising the steps of: forming a mold having an internal cross-section shape that is substantially identical to that of the rotationally mounted rotor component; coating a core insert with a diffusion barrier forming a coated core insert; selectively positioning the coated core insert within the mold in a selective position corresponding to the at least one selected area of the rotationally mounted rotor component to be formed, the core insert having a cross-section shape that is substantially identical to the at least one internal void; filling the mold with a superalloy material powder; hot-isostatic pressing the mold and superalloy material powder to consolidate the superalloy material powder about the coated core insert and form a superalloy structure about the coated core insert, the superalloy structure having at least one void in fluid communication with the coated core insert and comprising the rotationally mounted rotor component to be formed; removing the mold from the superalloy structure;