Process and apparatus for molding composite articles

    公开(公告)号:US11179901B2

    公开(公告)日:2021-11-23

    申请号:US16243021

    申请日:2019-01-08

    Applicant: Eric Hurdle

    Inventor: Eric Hurdle

    Abstract: A method and an apparatus for molding composite articles are disclosed. The method generally involves the saturation of reinforcing fibers (e.g. glass fibers, carbon fibers, etc.) with a matrix (e.g. resin, epoxy, cyanate ester, vinyl ester, polyester, etc.) in/on a mold using a conventional resin transfer molding (“RTM”) process (e.g. “RTM-light”) or a vacuum assisted resin transfer molding (“VARTM”) process (e.g. advanced VARTM or “A-VARTM”), and, once saturation is completed, the vibration of the matrix-infused fibers using controlled ultrasonic sound waves transmitted through the mold. By vibrating the matrix-infused fibers with the ultrasonic sound waves, the method and apparatus allow voids present between fibers to be closed and localized pockets of gases to be dislodged and degassed, and also allow the fibers to compact, thereby producing composite articles with reduced porosity and higher compaction.

    FLEXIBLE VACUUM SECUREMENT OF OBJECTS TO COMPLEX SURFACES

    公开(公告)号:US20210339516A1

    公开(公告)日:2021-11-04

    申请号:US17376424

    申请日:2021-07-15

    Inventor: Allen Halbritter

    Abstract: Systems and methods are provided for vacuum handling of composite parts. One embodiment is a method for performing vacuum securement of an object. The method includes covering the object with an impermeable membrane, locating a vacuum port at the impermeable membrane, and applying a negative pressure to the vacuum port that offsets air leaks between the impermeable membrane and the object.

    MOLD
    96.
    发明申请
    MOLD 有权

    公开(公告)号:US20210331353A1

    公开(公告)日:2021-10-28

    申请号:US17301934

    申请日:2021-04-19

    Inventor: Randall B. Hall

    Abstract: The improved mold assembly for cultured marble molding is provided. The mold assembly can comprise a male mold portion and a female mold portion. The assembly can further comprise a molding tool. The molding tool can have a side wall having an upper curved s and a lower curved portion. The molding tool can be constructed from a flexible and/or soft material. The lower curved portion of the molding tool can be coated with a gel coat having a first color. The molding tool can facilitate molding of a countertop having a recessed bowl portion having a color different from a counter portion of the countertop.

    APPARATUSES AND METHODS FOR CONSOLIDATING FIBER-REINFORCED RESIN MATERIAL

    公开(公告)号:US20210316518A1

    公开(公告)日:2021-10-14

    申请号:US16845367

    申请日:2020-04-10

    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.

    Method of manufacturing a wind turbine rotor blade

    公开(公告)号:US11135741B2

    公开(公告)日:2021-10-05

    申请号:US16482759

    申请日:2018-02-06

    Abstract: The present invention relates to a method of manufacturing a wind turbine rotor blade, to a wind turbine rotor blade obtainable by said method, to a pultrusion process for producing an elongated preform (97) for embedment in a wind turbine rotor blade and to an elongated preform (97) obtainable by said process. The blade manufacturing process involves a pultrusion process to obtain the preform (97), embedding the preform (97) within one or more parts of the blade, infusing a resin into said one or more blade parts containing the preform (97), and assembling the rotor blade including said one or more blade parts.

    Method and Tool Set for Manufacturing a Composite Component

    公开(公告)号:US20210299974A1

    公开(公告)日:2021-09-30

    申请号:US17257634

    申请日:2019-07-03

    Inventor: Kevin Mee

    Abstract: There is disclosed a method of manufacturing a composite component. A preform for the component is laid-up on a lay-up tool so that a first surface of the preform conforms to a lay-up profile of the tool. The preform is transferred to a forming tool comprising opposing first and second forming surfaces, each having a near net shape profile corresponding to a respective side of the component. The preform is formed in the forming tool to a near net shape of the component. The preform has a preform bulk in excess of the near net shape of the component prior to forming, and the lay-up profile is offset relative to the near net shape profile of the first forming surface to accommodate a proportion of the preform bulk. Accordingly, both the first surface and an opposing second surface of the preform displace during forming to conform to the respective near net shape profiles of the forming surfaces.

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