Method for producing a blade for a turbomachine
AssigneeMTU Aero Engines AG
InventorKarl-Hermann Richter
Life of this patent
Estimating the term…
Abstract
Disclosed is a method for producing a blade comprising a blade airfoil and a blade root for a turbomachine. The method comprises providing a first workpiece based on a first material and a second workpiece based on a second material which is different from the first material and has a higher temperature resistance than the first material; and connecting the first workpiece and the second workpiece by friction welding to form a composite component having a first region of the first material, and a second region of the second material. Optionally upon material-subtracting further processing, the first region forms the blade root, and the second region forms the blade airfoil.
Claims20
A method for producing a blade comprising a blade airfoil and a blade root for a turbomachine, wherein the method comprises:
- providing a first workpiece based on a first material which is a first titanium aluminide alloy (TiAl);
- providing a second workpiece based on a second material which has a higher temperature resistance than the first material and is a second titanium aluminide alloy (HT-TiAl) which has a lower elongation at break than the first titanium aluminide alloy (TiAl);
- directly connecting the first workpiece and the second workpiece by friction welding to form a composite component having a first region of the first material, and a second region of the second material;
- the first region forming the blade root, and the second region forming the blade airfoil.
Dependencies are inferred from the claim text.