公开(公告)号：EP4375051A1

公开(公告)日：2024-05-29

申请号：EP23211626.9

申请日：2023-11-23

申请人： Daher Aerospace

发明人： LEMOINE, Ivain ,  VAUDOUR, Julie

IPC分类号： B29C65/02 ,  B29C70/68 ,  B29C65/78 ,  B29C70/86 ,  B29C70/34 ,  B29C70/44 ,  B29C70/08 ,  B29D99/00 ,  B29C65/48 ,  B29C65/50 ,  B29K101/12 ,  B29K105/08 ,  B29K105/10 ,  B29K105/12 ,  B29K71/00

CPC分类号： B29C65/02 ,  B29C66/1122 ,  B29C66/545 ,  B29C66/532 ,  B29C66/73921 ,  B29C66/712 ,  B29C66/72141 ,  B29C66/72143 ,  B29C66/7212 ,  B29C66/91933 ,  B29C66/91935 ,  B29C66/81422 ,  B29C66/81455 ,  B29C66/81811 ,  B29C66/8432 ,  B29C66/81431 ,  B29C66/92921 ,  B29C66/91951 ,  B29L2031/307620130101 ,  B29C66/723 ,  B29C65/4815 ,  B29C65/5057 ,  B29C65/7802 ,  B29C70/44 ,  B29D99/0014 ,  B29C66/73116

摘要： The invention pertains to a composite part with a fibrous reinforcement and a thermoplastic polymer matrix, comprising:
- a substrate part with a matrix of a first thermoplastic polymer having a first melting temperature;
- a stiffener made of a composite material with a matrix of a second thermoplastic polymer having a second melting temperature;
comprising the steps of:
obtaining an unconsolidated preform of the substrate part;
obtaining a preform of the stiffener;
integrating a layer of the first thermoplastic polymer into the preform of the stiffener at a location configured to be in contact with the substrate part; and
subjecting the substrate part and the preform of stiffener to a thermomechanical cycle so as to consolidate the substrate part and weld the stiffener to the substrate part.