A method of joining vane blades to vane roots or rotor disks in the manufacture and / or repair of gas turbine blades or integrally bladed gas turbine rotors

摘要

The invention relates to a method for connecting blade leaves with blade roots or rotor disks in the manufacture and / or repair of gas turbine blades or integrally bladed gas turbine rotors, comprising at least the following steps: a) providing a blade (16) and a blade root or blade to be connected to the blade rotor disk (12) to be connected to the blade (16), wherein the blade (16) and the blade root or the rotor disk (12) have a thickening (13, 20) at sections (15, 18) to be joined thereto; b) machining the sections (15, 18) of the blade (16) and the blade root or rotor disk (12) to be joined together to form recesses (17, 19); c) subsequent alignment of the blade (16) and of the blade root or rotor disk (12) to be connected to the blade, wherein opposite recesses (17, 19) delimit at least one groove-shaped seam preparation (21); d) connecting blade (16) and blade root or rotor disk (12) in the region of the or each seam preparation (21) by laser powder build-up welding; e) machining interconnected airfoil (16) and blade root (12) to provide a gas turbine blade or integrally bladed gas turbine rotor (10) having a predetermined geometric profile.