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1.发明公开
公开(公告)号：EP4454865A1
公开(公告)日：2024-10-30
申请号：EP24164621.5
申请日：2024-03-19
摘要： A method of forming a thermoplastic cellular structure includes positioning a lower surface of a trough of a first corrugated thermoplastic sheet against an upper surface of a crest of a second corrugated thermoplastic sheet; positioning a support against a lower surface of the crest of the second corrugated thermoplastic sheet; and pressing a thermoplastic welding element against an upper surface of the trough of the first corrugated thermoplastic sheet so that at least a portion of the lower surface of the trough of the first corrugated thermoplastic sheet melts and bonds to at least a portion of the upper surface of the crest of the second corrugated thermoplastic sheet.
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2.发明公开
公开(公告)号：EP4434723A1
公开(公告)日：2024-09-25
申请号：EP24164812.0
申请日：2024-03-20
CPC分类号： B29D99/0089 , B29C70/46 , B29C65/02 , B29D99/001 , B29C53/28 , B29C70/504 , B29C53/285
摘要： A method of forming a corrugated thermoplastic matrix composite sheet includes preheating a thermoplastic matrix composite sheet (20) 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 (32,34) 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 (32,34) to form a corrugation in the thermoplastic matrix composite sheet; and holding the corrugation between the pair of complementary corrugating tools (32,34) 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 (10).
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