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    System for selective laser sintering
    1.
    发明授权
    System for selective laser sintering 有权

    公开(公告)号：US11312069B2

    公开(公告)日：2022-04-26

    申请号：US16604934

    申请日：2018-04-25

    Applicant: Hexcel Corporation

    Inventor： Scott DeFelice ,  Anthony DeCarmine

    IPC: B29C64/153 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/295 ,  B29C64/393 ,  B29C64/268 ,  B29K71/00

    Abstract: A system for producing an object from a powder by selective laser sintering. The system includes a chamber and a support platform in the chamber. A spreader applies a layer of powder to a bed surface. An irradiation source irradiates select points in the powdered layer prepared on the support platform. A radiant heater heats at least a portion of the bed surface. A temperature sensor monitors the temperature of select points on the bed surface. A controller adjusts the radiant heater in response to temperature data provided by the temperature sensor.

    System for Identifying Parts Formed in an Additive Manufacturing Build
    2.
    发明申请
    System for Identifying Parts Formed in an Additive Manufacturing Build 有权

    公开(公告)号：US20210140860A1

    公开(公告)日：2021-05-13

    申请号：US16682762

    申请日：2019-11-13

    Applicant: Hexcel Corporation

    Inventor： Whitney Kline ,  Alden Winn

    IPC: G01N3/08 ,  B29C64/153

    Abstract: A system and method for identifying test bars formed during a selective laser sintering build. A part cake is formed during a selective laser sintering build. The part cake comprises parts formed from a powder by selective laser sintering and unsintered powder around the formed parts. The parts include test bars for performing material testing. Each test bar includes a plurality of indentations in a first grip section and a second grip section. The plurality of indentations are arranged in a information providing pattern that is adapted to be readable after the test part is removed from the part cake.

    Polymer Powder and Object Made from the Same
    4.
    发明申请
    Polymer Powder and Object Made from the Same 审中-公开

    公开(公告)号：US20200165417A1

    公开(公告)日：2020-05-28

    申请号：US16778721

    申请日：2020-01-31

    Applicant: Hexcel Corporation

    Inventor： Whitney Kline ,  Lawrence Varholak

    IPC: C08K7/06 ,  B29B9/02 ,  B33Y70/00

    Abstract: A powder composition suitable for use in selective laser sintering for printing an object. The powder composition includes a first fraction including a plurality of polyaryletherketone (PAEK) particles having a mean diameter less than 30 microns, a second fraction having a plurality of polyaryletherketone (PAEK) particles having a mean diameter greater than 30 microns, and a third fraction having a plurality of carbon fibers. The first fraction and the second fraction are formed by an air classification separation performed on a pulverized powder. After the separation, the first fraction, the second fraction, and the third fraction are blended in a high intensity mixer. The powder composition when used in selective laser sinter results in parts with increased tensile strength and reduced surface roughness, among other improvements, as compared to similar powders omitting the first fraction. The PAEK may include polyetherketoneketone (PEKK).

    Plugged acoustic honeycomb
    5.
    发明授权
    Plugged acoustic honeycomb 有权

    公开(公告)号：US10604277B2

    公开(公告)日：2020-03-31

    申请号：US15583059

    申请日：2017-05-01

    Applicant: Hexcel Corporation

    Inventor： Andres Baca ,  Clark Smith ,  Earl Ayle ,  Heather Botello

    IPC: B64F5/40 ,  B64D33/02 ,  B32B3/12 ,  G10K11/172 ,  B29C73/06 ,  B29C73/26

    Abstract: An acoustic honeycomb panel is plugged with an acoustic honeycomb plug. The acoustic honeycomb plug is adhesively bonded in the panel using a honeycomb seam. The honeycomb seam is composed of a honeycomb support that is located within the seam channel and an adhesive. Using honeycomb seams to adhesively bond acoustic honeycomb plugs into acoustic honeycomb panels is useful in repairing damaged areas of acoustic honeycomb panels that are located in the acoustic treatments for jet engines.

    THERMAL PANEL
    10.
    发明申请
    THERMAL PANEL 审中-公开

    公开(公告)号：US20190086082A1

    公开(公告)日：2019-03-21

    申请号：US15708558

    申请日：2017-09-19

    Applicant: Hexcel Corporation

    Inventor： Merid Haile ,  Earl Ayle ,  Whitney Dailey

    IPC: F23R3/00 ,  F23R3/60 ,  B32B3/28 ,  B32B18/00

    Abstract: A thermal paid having a high temperature side located nearest a source of heat and a low temperature side. The thermal panel includes a corrugated composite material core having hot side ridges and cold side ridges. A hot side skin is attached to the hot side ridges to form a plurality of first cells. A cold side skin is attached to the cold side ridges to form a plurality of second cells. The first cells and second cells are substantially filled with an insulating material that has a thermal conductivity which is lower than the thermal conductivity of the composite material.

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