METHODS AND APPARATUSES FOR FORMING CORRUGATED THERMOPLASTIC SHEETS AND CELLULAR STRUCTURES
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United States of America Patent
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Issued Date -
Sep 26, 2024
app pub date -
Mar 21, 2023
filing date -
Mar 21, 2023
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Abstract
A method of forming a corrugated thermoplastic matrix composite sheet includes preheating a thermoplastic matrix composite sheet including a thermoplastic matrix and a reinforcement material to at least about a melting temperature of the thermoplastic matrix; preheating at least one of a pair of complementary corrugating tools to at least about a glass transition temperature of the thermoplastic matrix; compressing the preheated thermoplastic matrix composite sheet between the pair of complementary corrugating tools to form a corrugation in the thermoplastic matrix composite sheet; and holding the corrugation between the pair of complementary corrugating tools until a portion of the thermoplastic matrix composite sheet having the corrugation is below the melting temperature of the thermoplastic matrix to form the corrugated thermoplastic matrix composite sheet.
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