Method for chemically pickling a cast metal part with porous ceramic core(s)

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United States of America

PATENT NO 12173415
APP PUB NO 20230175141A1
SERIAL NO

17906410

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Abstract

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A method for chemically pickling a cast metal part, including a metal envelope which delimits an inner space in which at least one porous ceramic core is housed, and an outer space, the ceramic core being in fluid communication with the outer space, which method including: filling the pores of the ceramic core with a liquid; and then chemically pickling the cast metal part. This chemical pickling method may be implemented in a method for manufacturing a metal part by investment casting. This method is applicable at least to manufacture of turbine blades for turbomachines and, especially, for aircraft turbojet engines.

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Patent Owner(s)

Patent OwnerAddress
SAFRAN AIRCRAFT ENGINES2 BOULEVARD DU GÉNÉRAL MARTIAL VALIN 75015 PARIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bruin, Aymeric Moissy-Cramayel, FR 1 0
Krebs, Jean Philippe Moissy-Cramayel, FR 1 0

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