Self-terminating etching interfaces using iodine-based chemistries

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United States of America Patent

PATENT NO 12017276
APP PUB NO 20220297190A1
SERIAL NO

17697814

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Abstract

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A method is provided to remove a selective amount of material from a metal component fabricated by additive manufacturing in a self-terminating manner. The method can be used to remove support structures and trapped powder from a metal component as well as to smooth surfaces of a 3D printed metal component. In some embodiments, selected surfaces of the metal component are treated to make the selected surfaces at least one of mechanically and chemically unstable. The unstable portion of the metal support can then be removed chemically, electrochemically, or through vapor-phase etching. The method can be used for processing any fluid or vapor-accessible regions and surfaces of a 3D printed metal component.

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Patent Owner(s)

Patent OwnerAddress
COLORADO SCHOOL OF MINESA CORPORATION OF CO GOLDEN CO 80401

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heilig, Meredith Golden, US 1 0
Hildreth, Owen Lakewood, US 11 124
Raikar, Subbarao Golden, US 3 0
Yazdanparast, Sanaz Golden, US 1 0

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