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. 10, 2023
Filed:
Dec. 17, 2019
Safran Aircraft Engines, Paris, FR;
Universite DE Lorraine, Nancy, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Mariem Msakni Malouche, Moissy-Cramayel, FR;
Janvier Lecomte, Moissy-Cramayel, FR;
Mickael Rancic, Moissy-Cramayel, FR;
Nicolas Stein, Metz, FR;
Clotilde Boulanger, Coin les Cuvry, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITE DE LORRAINE, Nancy, FR;
Abstract
An electrolyte for electrochemical machining of a γ-γ' nickel-based superalloy includes NaNOat a content of between 10 and 50% by weight relative to the total weight of the electrolyte; an additive chosen from KBr, NaBr, KI, NaI and mixtures thereof, in an additive/NaNOmolar ratio of between 1 and 15; optionally an ethylenediaminetetraacetic acid-based complexing agent at a content of between 1 and 5% by weight relative to the total weight of the electrolyte at a pH of between 6 and 12; optionally an anionic surfactant at a content of between 1 and 5% by weight relative to the total weight of the electrolyte; optionally NaOH to obtain the appropriate pH; and an aqueous solvent.