Method for manufacturing a TiAl blade of a turbine engine
AssigneesSafran Aircraft Engines, Safran
InventorsGilbert Leconte, Jean-Michel Franchet, Pierre Sallot
Life of this patent
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Abstract
A method for manufacturing a titanium aluminide blade of a turbine engine, including production of a titanium aluminide ingot, extrusion of the ingot through an opening in a die having one main arm and at least one side arm, such as to obtain a extruded ingot having the shape of a bar with a cross-section having one main arm and at least one side arm substantially perpendicular to the main arm, transverse cutting of the extruded ingot such as to obtain sections of extruded ingot, forging of each section of extruded ingot such as to obtain a turbine engine blade.
Claims5
A method for manufacturing a turbine engine blade, made of titanium aluminide, comprising:
- forming a titanium aluminide ingot;
- extruding the titanium aluminide ingot through an opening of a die, the opening having a main slot and at least one side slot which extends from one of the ends of the main slot substantially perpendicular to said main slot, so as to obtain an extruded ingot having the shape of a bar with a cross-section having a main branch and at least one side branch substantially perpendicular to the main branch;
- transverse cutting of the extruded ingot so as to obtain sections of extruded ingot;
- forging of each section of extruded ingot so as to obtain a turbine engine blade, wherein said forging is carried out in hot dies with a temperature comprised between 600° and 950° C.,
- wherein the titanium aluminide ingot is formed by powder spraying,
- said method further comprising cladding the titanium aluminide ingot prior to said extruding and stripping between said extruding and the forging.
Dependencies are inferred from the claim text.