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    INDUCTION HEATING CELLS INCLUDING PRESSURE BLADDERS
    91.
    发明申请
    INDUCTION HEATING CELLS INCLUDING PRESSURE BLADDERS 审中-公开

    公开(公告)号：US20190389099A1

    公开(公告)日：2019-12-26

    申请号：US16563093

    申请日：2019-09-06

    Applicant: The Boeing Company

    Inventor： Marc R. Matsen ,  David S. Nansen ,  Lee C. Firth ,  Carey E. Wilkinson ,  Gregory J. Hickman ,  William C. Dykstra

    IPC: B29C43/52

    Abstract: Provided are induction heating cells including pressure bladders used for supporting dies and methods of using these induction heating cells. A pressure bladder may be disposed between a die and a bolster of the cell. Even when the bolster is deformed during operation of the cell, the pressure bladder continues to provide uniform support to the die thereby preserving integrity of the die and prevents its cracking or braking. As such, the cell may be operated at a higher processing pressure inside the cavity formed by the die without further strengthening the bolster. The bolster is allowed to deform without compromising the integrity of the die. The deformation of the bolster is compensated by the shape change of the pressure bladder. The number and/or position of the bladders in the cell may depend on the shape of processed parts.

    THERMAL STABILITY OF GEOMETRICALLY COMPLEX-SHAPED SMART SUSCEPTORS
    92.
    发明申请
    THERMAL STABILITY OF GEOMETRICALLY COMPLEX-SHAPED SMART SUSCEPTORS 审中-公开

    公开(公告)号：US20190239292A1

    公开(公告)日：2019-08-01

    申请号：US15884976

    申请日：2018-01-31

    Applicant: The Boeing Company

    Inventor： Landon K. Henson ,  Marc R. Matsen ,  John R. Hull ,  Lee C. Firth ,  Tunde A. Olaniyan

    IPC: H05B6/10 ,  H05B6/40

    CPC classification number: H05B6/105 ,  H05B6/40

    Abstract: A smart susceptor assembly including an electromagnetic flux source such as one or more inductors, a geometrically complex-shaped susceptor having one or more contours, and a cladding on or over the susceptor. The cladding can alter both the thermal performance and the electrical operation of the smart susceptor assembly. With regard to thermal performance, the cladding can function as a passive heat exchanger to dissipate thermal energy across the surface of the susceptor. With regard to electrical operation, the cladding can provide a current path after portions of the susceptor heat and become low or non-magnetic.

    INDUCTION HEATING CELLS WITH CONTROLLABLE THERMAL EXPANSION OF BLADDERS AND METHODS OF USING THEREOF
    93.
    发明申请
    INDUCTION HEATING CELLS WITH CONTROLLABLE THERMAL EXPANSION OF BLADDERS AND METHODS OF USING THEREOF 审中-公开

    公开(公告)号：US20190191495A1

    公开(公告)日：2019-06-20

    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.

    Densification Methods and Apparatuses
    97.
    发明申请
    Densification Methods and Apparatuses 审中-公开

    公开(公告)号：US20180229463A1

    公开(公告)日：2018-08-16

    申请号：US15431413

    申请日：2017-02-13

    Applicant: The Boeing Company

    Inventor： John R. Hull ,  Marc R. Matsen

    IPC: B30B15/34 ,  H01L35/28 ,  B30B11/00

    Abstract: A method includes a first electrode exhibiting a first Seebeck coefficient, a second electrode exhibiting a second Seebeck coefficient greater than the first Seebeck coefficient, and particles between the first and second electrodes exhibiting a third Seebeck coefficient between the first and second Seebeck coefficients. Heat is generated due to the Peltier effect at a junction between the first electrode and the particles and at a junction between the second electrode and the particles. Heat is removed due to the Peltier effect at the junction between the first electrode and the particles and at the junction between the second electrode and the particles. The particles are densified due to heating and cooling phase transitions between a higher-temperature solid phase and a lower-temperature solid phase while compressing the particles. An apparatus includes the first and second electrodes and an alternating current power supply electrically connected to the first and second electrodes.

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