ELECTROLYTE FOR ELECTROCHEMICAL MACHINING OF GAMMA-GAMMA PRIME NICKEL-BASED SUPERALLOYS

The present invention relates to an electrolyte for electrochemical machining of a gamma-gamma' nickel-based superalloy comprising - NaN03 at a content of between 10 and 50% by weight relative to the total weight of the electrolyte; - an additive chosen from the group consisting of KBr, NaBr, K...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	RANCIC MICKAEL, MSAKNI MALOUCHE MARIEM, STEIN NICOLAS, BOULANGER CLOTILDE, LECOMTE JANVIER
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL TRANSPORTING WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL
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Beschreibung
Zusammenfassung:	The present invention relates to an electrolyte for electrochemical machining of a gamma-gamma' nickel-based superalloy comprising - NaN03 at a content of between 10 and 50% by weight relative to the total weight of the electrolyte; - an additive chosen from the group consisting of KBr, NaBr, Kl, Nal and mixtures thereof, in particular KBr, in an additive/NaNCh molar 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; - an aqueous solvent. The invention further relates to the use of said electrolyte and a method for electrochemical machining of a gamma-gamma' nickel-based superalloy as well as a method for electrochemical machining of a gamma-gamma' nickel-based superalloy u