Method for manufacturing an integrally bladed rotor

摘要

The invention relates to a method for manufacturing an integrally bladed rotor, whereby several rotating blades are attached to a basic rotor body by welding in such a way that first, grooves into which the rotating blades are introduced by their blade feet or adapters, and which extend substantially in the axial direction of the basic rotor body, are introduced into the basic rotor body radially outside, prior to attaching the rotating blades, then, the rotating blades are welded to the basic rotor body, wherein the grooves are introduced in the rotor body and the blade feet or adapters are formed on the rotating blades in such a way that a central axis of the grooves is positioned obliquely relative to a central axis of the blade feet or the adapters, so that a pre-twisting is formed on the rotating blades when the rotating blades are introduced into the groove.

主权项

1. A method for manufacturing an integrally bladed rotor, comprising the steps of:
providing a basic rotor body having an axial direction; providing grooves in the basic rotor body, the grooves extending substantially in the axial direction of the basic rotor body; providing rotating blades, each rotating blade having a blade foot; positioning the rotating blades relative to the basic rotor body so the central axis of each groove is positioned obliquely relative to a central axis of each respective blade foot; inserting the rotating blades by their blade feet or by adapters respectively connected thereto into their respective grooves so that a pre-twisting is automatically formed on the rotating blades when the rotating blades are inserted into the grooves; and welding the rotating blades to the basic rotor body; wherein the grooves of the basic rotor body and/or the blade feet or the adapters of the rotating blades are contoured conically in the axial direction of the basic rotor body.