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    SCAN FIELD VARIATION FOR ADDITIVE MANUFACTURING
    21.
    发明申请
    SCAN FIELD VARIATION FOR ADDITIVE MANUFACTURING 有权

    公开(公告)号：US20210178480A1

    公开(公告)日：2021-06-17

    申请号：US16761644

    申请日：2018-11-02

    Applicant: General Electric Company

    Inventor： Justin Mamrak ,  MacKenzie Ryan Redding ,  Thomas Graham Spears

    IPC: B22F10/366 ,  B29C64/165 ,  B29C64/268 ,  B29C64/393 ,  B22F10/14 ,  B22F12/41 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y30/00

    Abstract: A method, apparatus, and program for additive manufacturing. The additive manufacturing method may include solidifying at least a portion of a first layer (601) of build material (416) within a first scan region (902A). At least one of a build unit (400) and a build platform (310) may be moved to solidify at least a portion of the first layer (601) of build material (416) within a second scan region (902B). A second layer (602) of build material (416) may be provided over at least a portion of the first scan region (902A) and the second scan region (902B). A second layer (602) of build material (416) may be solidified within at least a portion of the third scan region (902C), the third scan region (902C) may at least partially overlap and may be offset with relation to the first scan region (902A).

    Triangle hatch pattern for additive manufacturing
    22.
    发明授权
    Triangle hatch pattern for additive manufacturing 有权

    公开(公告)号：US10828700B2

    公开(公告)日：2020-11-10

    申请号：US15451108

    申请日：2017-03-06

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Justin Mamrak ,  MacKenzie Ryan Redding

    IPC: B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

    Abstract: A scanning technique for the additive manufacturing of an object. The method comprises the irradiation of a portion of a given layer of powder to form a fused region using an energy source. When forming an object layer by layer, the irradiation follows a first irradiation path bounded by a first stripe, wherein the first irradiation path is formed at an oblique angle with respect to the first stripe. The first irradiation path further comprises at least a first scan vector and a second scan vector at least partially melting a powder and forming a first solidification line and second solidification line respectively, wherein the first solidification intersects and forms an oblique angle with respect to the second solidification line. After a layer is completed, a subsequent layer of powder is provided over the completed layer, and the subsequent layer of powder is irradiated. Irradiation of the subsequent layer of powder follows a second irradiation path bounded by a second stripe. wherein the second irradiation path is formed at an oblique angle with respect to the second stripe. The first irradiation path further comprises at least a third scan vector and a fourth scan vector at least partially melting a powder and forming a third solidification line and fourth solidification line respectively, wherein the third solidification intersects and forms an oblique angle with respect to the fourth solidification line.

    Vibration isolation device for an additive manufacturing machine
    29.
    发明授权
    Vibration isolation device for an additive manufacturing machine 有权

    公开(公告)号：US11584073B2

    公开(公告)日：2023-02-21

    申请号：US16761623

    申请日：2018-11-02

    Applicant: General Electric Company

    Inventor： Justin Mamrak ,  MacKenzie Ryan Redding

    IPC: B29C64/209 ,  B33Y30/00 ,  B29C64/214 ,  B29C64/364 ,  B29C64/268 ,  B29C64/165 ,  F16F15/08

    Abstract: An additive manufacturing machine (900) includes a build unit (904) that is supported by an overhead gantry (918). The build unit (904) includes a powder dispenser (906) including a vibration mechanism (922) and a scan unit (908) including a powder fusing device (910) for fusing or binding portions of a layer of additive powder. A vibration isolation device (932), such as a passive rubber damper (940) or an active vibration canceling mechanism (960), is positioned between the powder dispenser (906) and the scan unit (908) to prevent vibrations in the powder dispenser (906) from causing operational issues with the scan unit (908) and inaccuracies in the additive manufacturing process.

    DETECTING OPTICAL ANOMALIES ON OPTICAL ELEMENTS USED IN AN ADDITIVE MANUFACTURING MACHINE
    30.
    发明申请
    DETECTING OPTICAL ANOMALIES ON OPTICAL ELEMENTS USED IN AN ADDITIVE MANUFACTURING MACHINE 有权

    公开(公告)号：US20220331876A1

    公开(公告)日：2022-10-20

    申请号：US17232648

    申请日：2021-04-16

    Applicant: General Electric Company ,  Concept Laser GmbH

    Inventor： Fabian Zeulner ,  Christian Dicken ,  Justin Mamrak ,  MacKenzie Ryan Redding ,  Bertram Gaerber

    IPC: B22F10/85 ,  B33Y10/00 ,  B22F12/90 ,  B22F10/28 ,  B33Y30/00 ,  B22F12/41 ,  B22F12/49 ,  B33Y50/02

    Abstract: An additive manufacturing machine may include an energy beam system configured to emit an energy beam utilized in an additive manufacturing process, and one or more optical elements utilized by, or defining a portion of, the energy beam system and/or an imaging system of the additive manufacturing machine. The imaging system may be configured to monitor one or more operating parameters of the additive manufacturing process. The additive manufacturing machine may include a light source configured to emit an assessment beam that follows an optical path incident upon the one or more optical elements, and one or more light sensors configured to detect a reflected beam comprising at least a portion of the assessment beam reflected and/or transmitted by at least one of the one or more optical elements. The additive manufacturing machine may include a control system configured to determine, based at least in part on assessment data comprising data from the one or more light sensors, whether the one or more optical elements exhibit an optical anomaly.

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