Patent ID: 9194245
Filing Date: 2015-11-24
Classification: B23K,F01D,F05B,F05D

Abstract:
1. A process for friction welding of blades to a rotor of an axial turbomachine, said process comprising: positioning the rotor to provide a faying surface for one of a plurality of blades; moving the blade in an orbital frictional motion against the faying surface for the blade in a mean contact plane between the blade and the faying surface such that a welding temperature is generated, the rotor being held motionless in the plane of frictional movement of the blade; immobilizing of the blade and exerting a forging pressure on the blade against the rotor; and wherein positioning the rotor to provide a faying surface for one of the blades comprises locating a support within the rotor on an internal surface of the rotor opposite to the faying surface for the blade to provide a brace for the faying surface with respect to the forging pressure being exerted on the blade.