The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2020
Filed:
Dec. 15, 2015
Safran Aircraft Engines, Paris, FR;
Dominique Coyez, Conflans Sainte Honorine, FR;
Christian Bariaud, Orsay, FR;
Sami Benichou, Le Blanc Mesnil, FR;
Jean-Claude Marcel Auguste Hanny, Paris, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
A method for manufacturing a turbine engine blade () comprising a pressure side and a suction side separated from one another by an inner space for the circulation of cooling air, the blade () comprising a tip (S) with a closing wall () joining the pressure side and suction side walls in the region of this tip (S) in order to define a well shape, the closing wall including through-holes. The closing wall () obtained by moulding has a considerable nominal thickness with pits () locally reducing this thickness at each through-hole in order to facilitate the removal by chemical etching of alumina rods defining the holes. Since the closing wall () thus has a large nominal thickness, it can then be machined in order to form raised patterns or complex shapes inside the well.