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    ADDITIVE MANUFACTURING USING A DYNAMICALLY GROWN BUILD ENVELOPE
    11.
    发明申请
    ADDITIVE MANUFACTURING USING A DYNAMICALLY GROWN BUILD ENVELOPE 有权

    公开(公告)号：US20210283692A1

    公开(公告)日：2021-09-16

    申请号：US16332154

    申请日：2017-12-07

    Applicant: General Electric Company

    Inventor： MacKenzie Ryan Redding ,  Justin Mamrak ,  Zachary David Fieldman

    IPC: B22F12/00 ,  B29C64/40 ,  B29C64/153

    Abstract: The present disclosure generally relates to additive manufacturing systems and methods on a large-scale format. One aspect involves a build unit that can be moved around in three dimensions by a positioning system, building separate portions of a large object. The build unit has an energy directing device that directs, e.g., laser or e-beam irradiation onto a powder layer. In the case of laser irradiation, the build volume may have a gasflow device that provides laminar gas flow to a laminar flow zone above the layer of powder. This allows for efficient removal of the smoke, condensates, and other impurities produced by irradiating the powder (the “gas plume”) without excessively disturbing the powder layer. The build unit may also have a recoater that allows it to selectively deposit particular quantities of powder in specific locations over a work surface to build large, high quality, high precision objects.

    Large scale additive machine
    13.
    发明授权
    Large scale additive machine 有权

    公开(公告)号：US10821516B2

    公开(公告)日：2020-11-03

    申请号：US15996058

    申请日：2018-06-01

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： MacKenzie Ryan Redding ,  Zachary David Fieldman ,  Justin Mamrak

    IPC: B22F3/105 ,  B33Y30/00 ,  B23K15/00 ,  B33Y50/02 ,  B33Y10/00 ,  B29C64/153 ,  B23K26/342 ,  B23K26/14 ,  B23K26/08 ,  B33Y40/00 ,  B29C64/371

    Abstract: The present disclosure generally relates to additive manufacturing systems and methods on a large-scale format. One aspect involves a build unit that can be moved around in three dimensions by a positioning system, building separate portions of a large object. The build unit has an energy directing device that directs, e.g., laser or e-beam irradiation onto a powder layer. In the case of laser irradiation, the build volume may have a gasflow device that provides laminar gas flow to a laminar flow zone above the layer of powder. This allows for efficient removal of the smoke, condensates, and other impurities produced by irradiating the powder (the “gas plume”) without excessively disturbing the powder layer. The build unit may also have a recoater that allows it to selectively deposit particular quantities of powder in specific locations over a work surface to build large, high quality, high precision objects.

    METHODS AND BREAKABLE SUPPORTS FOR ADDITIVE MANUFACTURING
    14.
    发明申请
    METHODS AND BREAKABLE SUPPORTS FOR ADDITIVE MANUFACTURING 审中-公开

    公开(公告)号：US20200331200A1

    公开(公告)日：2020-10-22

    申请号：US16919250

    申请日：2020-07-02

    Applicant: General Electric Company

    Inventor： Zachary David Fieldman

    IPC: B29C64/153 ,  B29C64/40 ,  B22F3/105

    Abstract: The present disclosure generally relates to methods for additive manufacturing (AM) that utilize breakable structures in the process of building objects, as well as novel breakable support structures to be used within these AM processes. A support structure includes a weakened portion and the object includes an outlet. The method includes breaking the removable support structure at the weakened portion into at least two parts.

    DMLM BUILD PLATFORM AND SURFACE FLATTENING
    16.
    发明申请
    DMLM BUILD PLATFORM AND SURFACE FLATTENING 审中-公开

    公开(公告)号：US20190134891A1

    公开(公告)日：2019-05-09

    申请号：US15807434

    申请日：2017-11-08

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Justin Mamrak ,  MacKenzie Ryan Redding ,  Zachary David Fieldman

    IPC: B29C64/153 ,  B22F3/105 ,  B29C64/273 ,  B23K26/144 ,  B29C64/386 ,  B29C64/245

    Abstract: A method of fabricating an object by additive manufacturing is provided. The method includes measuring a build surface for building the object, determining which areas of the build surface are depressed, and initiating a build of the object at one of the depressed areas of the build surface. The initial building includes the steps of depositing a given layer of powder at the one depressed area of the build surface, fusing the given layer of powder at the one depressed area, and depositing a subsequent layer of powder at the one depressed area. The steps are repeating until the build surface is at a layer that is unified across the build surface.

    Large scale additive machine
    17.
    发明授权
    Large scale additive machine 有权

    公开(公告)号：US11370031B2

    公开(公告)日：2022-06-28

    申请号：US17072163

    申请日：2020-10-16

    Applicant: General Electric Company

    Inventor： MacKenzie Ryan Redding ,  Zachary David Fieldman ,  Justin Mamrak

    IPC: B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/14 ,  B23K15/00 ,  B29C64/153 ,  B33Y40/00 ,  B29C64/371 ,  B23K26/08 ,  B22F12/00 ,  B22F10/00 ,  B22F10/10

    Abstract: The present disclosure generally relates to additive manufacturing systems and methods on a large-scale format. One aspect involves a build unit that can be moved around in three dimensions by a positioning system, building separate portions of a large object. The build unit has an energy directing device that directs, e.g., laser or e-beam irradiation onto a powder layer. In the case of laser irradiation, the build volume may have a gasflow device that provides laminar gas flow to a laminar flow zone above the layer of powder. This allows for efficient removal of the smoke, condensates, and other impurities produced by irradiating the powder (the “gas plume”) without excessively disturbing the powder layer. The build unit may also have a recoater that allows it to selectively deposit particular quantities of powder in specific locations over a work surface to build large, high quality, high precision objects.

    Additive manufacturing using a selective recoater
    20.
    发明授权
    Additive manufacturing using a selective recoater 有权

    公开(公告)号：US10981232B2

    公开(公告)日：2021-04-20

    申请号：US15968795

    申请日：2018-05-02

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： MacKenzie Ryan Redding ,  Zachary David Fieldman ,  Justin Mamrak

    IPC: B22F3/105 ,  B23K37/02 ,  B23K26/08 ,  B23K15/00 ,  B23K26/342 ,  B33Y10/00 ,  B23K26/14 ,  B33Y50/02 ,  B33Y40/00 ,  B33Y30/00 ,  B22F12/00 ,  B22F10/10

    Abstract: The present disclosure generally relates to additive manufacturing systems and methods on a large-scale format. One aspect involves a build unit that can be moved around in three dimensions by a positioning system, building separate portions of a large object. The build unit has an energy directing device that directs, e.g., laser or e-beam irradiation onto a powder layer. In the case of laser irradiation, the build volume may have a gasflow device that provides laminar gas flow to a laminar flow zone above the layer of powder. This allows for efficient removal of the smoke, condensates, and other impurities produced by irradiating the powder (the “gas plume”) without excessively disturbing the powder layer. The build unit may also have a recoater that allows it to selectively deposit particular quantities of powder in specific locations over a work surface to build large, high quality, high precision objects.

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