Vane ring, and method for the production thereof
AssigneeMTU Aero Engines AG
InventorsSiegfried Sikorski, Max Kraus, Karl Hoffmann, Alois Niedersüss
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Abstract
The invention relates to a vane ring of a turbo engine, particularly a gas turbine, comprising a vane support ring and several guide vanes that are mounted on the vane support ring. According to the invention, the vane support ring and the guide vanes are made of different materials, the materials of which the guide vanes are made being of a higher quality than the material of which the vane support ring is made.
Claims14
1-11. (canceled)
A guide vane ring of a turbo engine, the guide vane ring comprising:
- a guide vane carrier ring produced from a first material;
- and
- a plurality of guide vanes attached to the guide vane carrier ring, each of the plurality of guide vanes produced from a second material that is different from the first material;
- wherein with the second material from which the guide vanes are produced has a higher value of thermal stability than the first material from which the guide vane carrier ring is produced.
A method for manufacturing a guide vane ring of a turbo engine, the method comprising the following steps:
- a) manufacturing a guide vane carrier ring from a first material;
- b) manufacturing a plurality of guide vanes from a second material that is of higher value of thermal stability than the first material;
- and
- c) soldering the guide vanes to the guide vane carrier ring.
A method for manufacturing guide vanes for a guide vane ring of a turbo engine, the method comprising the following steps:
- (a) producing a plurality of continuously connected guide vane blanks by powder-metallurgical injection molding;
- (b) processing the guide vane blanks by one of a precise electrochemical machining (PECM) process and an electrochemical machining (ECM) process.
Dependencies are inferred from the claim text.