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    Thermoplastic welding apparatus and related methods
    2.
    发明授权
    Thermoplastic welding apparatus and related methods 有权

    公开(公告)号：US11077625B2

    公开(公告)日：2021-08-03

    申请号：US15411589

    申请日：2017-01-20

    Applicant: The Boeing Company

    Inventor： Marc R. Matsen ,  Mark A. Negley ,  William Preston Geren ,  Robert Miller

    IPC: B29C65/36 ,  B29C65/00 ,  H05B6/10 ,  B29L31/30

    Abstract: Thermoplastic welding apparatus and related methods are disclosed. An example method includes providing a smart susceptor between composite parts that are to be joined via thermoplastic welding. The example method includes positioning the composite parts and the smart susceptor on a tooling surface within a cavity of a tooling apparatus and applying a seal to the composite parts and the tooling surface to form a vacuum chamber between the composite parts and the tooling surface at a welding joint of the composite parts; producing a magnetic field at the welding joint. The example method includes providing a vacuum in the vacuum chamber during a welding operation.

    Induction heating cells with controllable thermal expansion of bladders and methods of using thereof
    3.
    发明授权
    Induction heating cells with controllable thermal expansion of bladders and methods of using thereof 有权

    公开(公告)号：US10701767B2

    公开(公告)日：2020-06-30

    申请号：US15841964

    申请日：2017-12-14

    Applicant: The Boeing Company

    Inventor： Marc R. Matsen ,  Lee C. Firth ,  Mark A. Negley

    IPC: H05B6/10 ,  H05B6/06

    Abstract: Disclosed herein are induction heating cells and methods of using these cells for processing. An induction heating cell may be used for processing (e.g., consolidating and/or curing a composite layup having a non-planar portion. The induction heating cell comprises a caul, configured to position over and conform to this non-planar portion. Furthermore, the cell comprises a mandrel, configured to position over the caul and force the caul again the surface of the feature. The CTE of the caul may be closer to the CTE of the composite layup than to the CTE of the mandrel. As such, the caul isolates the composite layup from the dimensional changes of the mandrel, driven by temperature fluctuations. At the same time, the caul may conform to the surface of the mandrel, which can be used to define the shape and transfer pressure to the non-planar portion.

    SYSTEM FOR ADJUSTING THE EQUILIBRIUM TEMPERATURE OF AN INDUCTIVELY-HEATED SUSCEPTOR
    4.
    发明申请
    SYSTEM FOR ADJUSTING THE EQUILIBRIUM TEMPERATURE OF AN INDUCTIVELY-HEATED SUSCEPTOR 审中-公开

    公开(公告)号：US20190134863A1

    公开(公告)日：2019-05-09

    申请号：US14599475

    申请日：2015-01-17

    Applicant: The Boeing Company

    Inventor： Marc R. Matsen ,  Mark A. Negley ,  William Preston Geren

    IPC: B29C43/52 ,  H05B6/10 ,  B29C33/06

    CPC classification number: B29C43/52 ,  B29C33/06 ,  B29C2035/0811 ,  H05B6/105 ,  H05B2206/023

    Abstract: A system for inductively heating a workpiece may include an induction coil, at least one susceptor face sheet, and a current controller coupled. The induction coil may be configured to conduct an alternating current and generate a magnetic field in response to the alternating current. The susceptor face sheet may be configured to have a workpiece positioned therewith. The susceptor face sheet may be formed of a ferromagnetic alloy having a Curie temperature and being inductively heatable to an equilibrium temperature approaching the Curie temperature in response to the magnetic field. The current controller may be coupled to the induction coil and may be configured to adjust the alternating current in a manner causing a change in at least one heating parameter of the susceptor face sheet.

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