Needle arrays for forming ultrasonic perforations, and methods of making the same

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United States of America Patent

PATENT NO 11897074
APP PUB NO 20210260713A1
SERIAL NO

16796658

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Abstract

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Needle arrays for forming ultrasonic perforations may be formed from additive manufacturing and with non-circular cross-sectional areas for forming a plurality of holes, or perforations, in a thin sheet material. Methods of forming a plurality of perforations in a thin sheet of a composite material may include positioning the thin sheet under the needle array, repeatedly contacting the surface of the thin sheet to form perforations therein, translating the thin sheet and/or the needle array such that a different area of the thin sheet is positioned under the needle array, and again repeatedly contacting the surface of the thin sheet to form the perforations therein. Related systems may include an ultrasonic actuator, a needle array, and a remote heating unit configured to heat the workpiece while the perforations are formed therein.

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Patent Owner(s)

Patent OwnerAddress
THE BOEING COMPANY929 LONG BRIDGE DRIVE ARLINGTON VA 22202

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Song, Weidong Woodinville, US 67 153

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