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High rate fabrication of compression molded components

United States Patent

April 19, 2016
View the Complete Patent at the US Patent & Trademark Office
A method for fabricating a thermoplastic composite component comprises inductively heating a thermoplastic pre-form with a first induction coil by inducing current to flow in susceptor wires disposed throughout the pre-form, inductively heating smart susceptors in a molding tool to a leveling temperature with a second induction coil by applying a high-strength magnetic field having a magnetic flux that passes through surfaces of the smart susceptors, shaping the magnetic flux that passes through surfaces of the smart susceptors to flow substantially parallel to a molding surface of the smart susceptors, placing the heated pre-form between the heated smart susceptors; and applying molding pressure to the pre-form to form the composite component.
Matsen; Marc R. (Seattle, WA), Negley; Mark A. (Bellevue, WA), Dykstra; William C. (Rockford, MI), Smith; Glen L. (Dearborn, MI), Miller; Robert J. (Fall City, WA)
The Boeing Company (Chicago, IL)
13/ 870,111
April 25, 2013
GOVERNMENT CONTRACT The invention disclosed herein was made with support of the United States Government under Contract No. DE-FG36-08GO18135 awarded by the Department of Energy. The Government has certain rights in this invention.