Method for manufacturing a turbomachine blade
AssigneeSafran Aircraft Engines
InventorsJosserand Jacques André Bassery, Ba-Phuc Tang, Elsa Maxime, Yann François Louis Baraton, Jérôme Salmon, Victor Desnoyer, Mickaël Mabrut
Life of this patent
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Abstract
The method for manufacturing a blade (32) of a turbomachine (100) comprises: —manufacturing a part (4) comprising an air flow path zone (10) and a layer (20) covering the zone, the layer having cavities (21) forming a periodic pattern, the manufacture taking place by injecting a mixture comprising a binder and a power; —removing a larger part of the binder from the part; —sintering the part, and —removing the layer (20) from the part to obtain the blade (32).
Claims16
A method for manufacturing a turbomachine blade, the method comprising:
- manufacturing a part by injecting a mixture comprising a binder and a powder, the part comprising:
- a root,
- a tip,
- an air flow path zone extending between the root and the tip, and
- a layer covering the zone, the layer having cavities forming a periodic pattern, the layer extending continuously from the root to the tip, wherein:
- the cavities form at least one first line and one second line,
- the cavities of the at least one first line being identical to one another,
- the cavities of the one second line being identical to one another,
- each of the cavities has a hexagonal profile and a closed profile, and
- the cavities of the at least one first line have a profile having a different orientation from the cavities of the one second line;
- eliminating from the part a majority of the binder;
- sintering the part;
- and
- eliminating the layer from the part to obtain the turbomachine blade.
A part comprising:
- a turbomachine blade, the blade comprising an air flow path zone, and
- a layer that is connected to an outer surface of the turbomachine blade and configured to be removed from the outer surface of the turbomachine blade, and extends over the air flow path zone and having cavities forming a periodic pattern,
- wherein:
- the cavities form at least one first line and one second line,
- the cavities of the at least one first line are identical to one another,
- the cavities of the one second line are identical to one another,
- each of the cavities has a hexagonal profile and a closed profile, and
- the cavities of the at least one first line have a profile having a different orientation from the cavities of the one second line.
Dependencies are inferred from the claim text.