Rotor stage of an integral bladed compressor drum of an axial turbomachine and corresponding manufacturing method.

摘要

#CMT# #/CMT# The stage has vanes (2) arranged at a periphery of a hollow body, where each vane includes an attachment platform (5) housed in a corresponding opening made in the hollow body. Each platform is housed in the corresponding opening such that an outer surface of each platform is essentially flush with an outer surface of the hollow body at an edge of the corresponding opening. Each platform is attached to the hollow body by welding between an outer edge of the platform and an inner edge of the corresponding opening. #CMT# : #/CMT# An independent claim is also included for a method for obtaining a compressor drum stage for an axial turbo-machine. #CMT#USE : #/CMT# Compressor drum rotor stage for an axial turbo-machine. #CMT#ADVANTAGE : #/CMT# The arrangement of the vanes allows savings in material and mass of a drum shell, and avoids the need for the material for producing large vane roots. The stage allows better control of the position of the vanes with respect to the drum, thus reducing or even eliminating the rotations of the vanes in the drum in operation. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a partial sectional view of the exterior of the compressor drum. 1 : Rotor 2 : Vanes 5 : Attachment platform 6 : Wipers 7, 8 : Side plates.