Process for the assembly of a disc fitted with vanes by welding

摘要

The blades (8) are composed of a root (3) manufactured as one piece with the disc (1) and welded vanes (4). The disc (1) and the vanes (4) are installed on a rotating jig (template) with means for fixing at the desired position, and melting of the components is achieved at the junction surface (5) using an electron gun or a similar means. The blades (8) are successively welded in one or two operations. Screens (shields) for stopping the thermal (heating) radiation are located behind the blades undergoing the welding. One application of the invention relates to the rotors of turbines and compressors.