Depowdering of additively manufactured objects with small and/or complex internal geometries

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12208573
APP PUB NO 20220168950A1
SERIAL NO

17107726

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of depowdering objects (e.g., heat exchangers) having small and/or complex internal geometries and manufactured using an additive manufacturing technique performed with a powder material. The method includes applying a pressurized fluid to the objects via a pressurized fluid applicator operatively coupled to the object, thereby removing a portion of unbound powder material on or in the object. The method further includes applying vortex vibration to the object via a vortex vibration source operatively coupled to the object, thereby loosening a portion of the unbound powder material remaining on or in the object, and applying the pressurized fluid to the object via the pressurized fluid application, thereby removing a portion of the loosened, unbound powder material from the object. The latter two applying steps are repeated until a specified amount of the unbound powder material has been removed from the object.

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Patent Owner(s)

Patent OwnerAddress
UCHICAGO ARGONNE LLC5801 SOUTH ELLIS AVENUE CHICAGO IL 60637

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Du, Wenchao Willowbrook, US 3 4
France, David M Lombard, US 12 42
Singh, Dileep Naperville, US 36 507
Yu, Wenhua Darien, US 31 133

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