Mtu Aero Engines Gmbh

Marcus Klemm

Karl-Hermann Richter

Alexander Gindorf

A method for replacing a blade () of a rotor () having integral blades, wherein a new blade () is joined to a base () arranged on a separation surface () on the main rotor body, and to a rotor repaired or mended according to said method.

Method for replacing a blade of a rotor having integrated blades and such a rotor

The invention relates to a high-pressure compressor of a gas turbine having at least one blisk, specifically a disk with a plurality of blades that are disposed on the disk, wherein the blisk has at least one titanium material from the group that comprises Ti-6246 and Ti-6242, wherein the materials of the disk and the blades of the blisk differ in their chemical composition and/or their microstructure. The blades are welded to the disk, in particular, by means of a pressure welding method supported by high-frequency current, whereby the current is conducted through the joint surfaces and leads to local limited melting therein.

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Puchheim, Germany

Marcus Klemm