COMPOSITE-MATERIAL AIRCRAFT PART AND METHOD OF MANUFACTURING SAME

    公开(公告)号:US20230271389A1

    公开(公告)日:2023-08-31

    申请号:US18143606

    申请日:2023-05-05

    CPC classification number: B29C70/44 B29C70/465 B29C70/46 B29C70/54 B29K2101/10

    Abstract: An aircraft structure (such as a T-shaped structure, a convex structure, a curved structure, or the like) includes: a laminated structure including composite-material layers that are laminated; and wherein the composite material aircraft structure is a three-dimensional structure that includes at least one of a standing structure, a convex structure, or a curved structure. The composite-material layers include at least a composite-material layer in which a reinforced fiber is a single continuous fiber, wherein the single continuous fiber includes a partial slit region. When a thickness of a flat-plate formed body including a same laminated structure as the aircraft structure but not including the three-dimensional structure, is defined as a reference thickness, the aircraft structure includes a thin plate region which has a thickness that is smaller than the reference thickness while maintaining the laminated structure.

    A METHOD OF MANUFACTURING A SHELL OF A WIND TURBINE BLADE

    公开(公告)号:US20230249421A1

    公开(公告)日:2023-08-10

    申请号:US18015166

    申请日:2021-07-08

    Inventor: Pavlo ZHURAVLOV

    CPC classification number: B29C70/541 B29C65/7817 B29C70/443 B29D99/0028

    Abstract: A method of manufacturing a shell (36 and 38) of a wind turbine blade (10) is disclosed. The method comprises providing a mould (9) having a marker (11) at pre-determined locations. One or more layers of fiber fabrics are provided on surface of the mould (9) to form a shell half structure (36 and 38). Resin is infused through the one or more layers of fiber fabrics and subsequently cured to obtain the shell half structure (36 and 38). A reference portion (19) is marked on the shell half structure (36 and 38) to assemble one or more components on the shell half structure (36 and 38), by detecting a location of the marker (11) in the mould (9) by a detection device (13). The above method facilitates accurate positioning of component such as shear webs (7).

    Method of seamlessly bagging composite parts

    公开(公告)号:US11660829B2

    公开(公告)日:2023-05-30

    申请号:US17171628

    申请日:2021-02-09

    Inventor: Blaise Bergmann

    CPC classification number: B29C70/446 B29C33/485 B29C70/342

    Abstract: A method and system for manufacturing composite parts free of wrinkles and mark-offs from bagging compression. The method can include placing composite material around a rigid mandrel and sealing opposing end of an elastomeric hollow membrane within a rigid external vessel. Then the method can include inflating the hollow membrane from a natural state to an inflated state. In the natural state, the hollow membrane can have a cross-section smaller than the cross section of the rigid mandrel with the composite material thereon. The method can then include inserting the rigid mandrel and the composite material into the membrane while it is in the inflated state, followed by releasing the membrane from the inflated state to naturally contract toward its natural state. Then the method can include heating the composite material to a cure temperature while the composite material is compressed by the membrane.

    APPARATUSES AND METHODS FOR CONSOLIDATING FIBER-REINFORCED RESIN MATERIAL

    公开(公告)号:US20230127079A1

    公开(公告)日:2023-04-27

    申请号:US18068595

    申请日:2022-12-20

    Abstract: An apparatus for consolidating fiber-reinforced resin material comprises a housing, comprising a barrel and a receptacle. The receptacle comprises a base, a lid, positionable relative to the base and relative to the barrel such that the housing is in an open state or a closed state, and a de-gassing port. The apparatus comprises a gasket that is in contact with the lid, the base, and the barrel when the housing is in the closed state. The apparatus comprises a piston, movable between a retracted position, in which the piston, in its entirety, is in the barrel, and an extended position, in which a portion of the piston is in the receptacle and another portion of the piston is in the barrel. The apparatus comprises a seal, which is in contact with the piston and the barrel, and a drive system, configured to control movement of the piston.

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