公开(公告)号：EP3875256A1

公开(公告)日：2021-09-08

申请号：EP21159392.6

申请日：2021-02-25

申请人： The Boeing Company

发明人： HEATH, Richard E. ,  PRAUSE, Richard A. ,  MODIN, Andrew E.

IPC分类号： B29C70/44 ,  B29D99/00 ,  B29C33/50 ,  B64C1/06 ,  B64C1/12 ,  B64C3/18 ,  B64C3/26 ,  B29C43/36 ,  B64C1/00

摘要： A method for manufacturing a cured composite structure from first stringers, second stringers and a panel comprising a first side and a second side, the method includes, for each first stringer, supporting the first stringer on the first side of the panel using a substantially rigid mandrel positioned within a first cavity defined between the first stringer and the first side of the panel, for each second stringer, supporting the second stringer on the second side of the panel using a flexible mandrel positioned within a second cavity defined between the second stringer and the second side of the panel, and co-curing the first stringers, the panel, and the second stringers while each of the one or more first stringers are supported by the respective substantially rigid mandrel and each of the one or more second stringers are supported by the respective flexible mandrel.

公开(公告)号：EP4098430A1

公开(公告)日：2022-12-07

申请号：EP22170030.5

申请日：2022-04-26

申请人： The Boeing Company

发明人： PRAUSE, Richard A. ,  MODIN, Andrew E. ,  HALBRITTER, Allen ,  HEATH, Richard E. ,  RAMIREZ, Ivan G. ,  NIBE, John R.

IPC分类号： B29D99/00 ,  B29C70/54 ,  B29C70/50

摘要： An example method of forming a composite structure (100) includes applying a laminated charge (116) onto an expandable pallet (112), moving the expandable pallet (112) in a linear motion relative to a plurality of rollers (118A, 118), and progressively urging the laminated charge (116) into a continuously expanding recess (120) defined by the expandable pallet (112) using the plurality of rollers (118A, 118). The plurality of rollers (118A, 118) are oriented in a serial configuration so as to shape the laminated charge (116) into at least part of a shape of the composite structure (100).

公开(公告)号：EP3995298A1

公开(公告)日：2022-05-11

申请号：EP21193026.8

申请日：2021-08-25

申请人： The Boeing Company

发明人： HEALTH, Richard E. ,  MODIN, Andrew E. ,  PRAUSE, Richard A. ,  SHAW, Paul D. ,  SURIYAARACHCHI, Raviendra S.

IPC分类号： B29C70/46 ,  B29C70/56 ,  B29C33/20 ,  B29C33/24 ,  B29C53/04 ,  B29C53/80 ,  B29D99/00

摘要： There is provided a forming apparatus for constraining a composite charge and forming the composite charge into a highly contoured composite structure. The forming apparatus includes a first die and a second die between which the composite charge is formed. The first die has pairs of first die portions spaced apart to define a die cavity into which the composite charge is formed into a contoured hat section having a cap. The forming apparatus includes a constraining assembly having a constraining device positioned in the die cavity. The constraining device is designed to constrain a cap portion, and to apply an upward resistive force against the cap portion, and against a downward compressive force applied by the second die, to provide wrinkle prevention in the cap as the contoured hat section is formed. The constraining assembly has a retaining element to retain the constraining device.