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    DEVICES, SYSTEMS, AND METHODS FOR CALIBRATING AND OPERATING AN ADDITIVE MANUFACTURING SYSTEM HAVING A PLURALITY OF ELECTRON BEAM GUNS
    12.
    发明申请
    DEVICES, SYSTEMS, AND METHODS FOR CALIBRATING AND OPERATING AN ADDITIVE MANUFACTURING SYSTEM HAVING A PLURALITY OF ELECTRON BEAM GUNS 有权

    公开(公告)号：US20220402035A1

    公开(公告)日：2022-12-22

    申请号：US17349997

    申请日：2021-06-17

    Applicant: ARCAM AB

    Inventor： Anders Snis

    IPC: B22F10/31 ,  B22F10/85 ,  B22F12/30 ,  B22F12/41 ,  B22F12/45 ,  B22F12/90 ,  B33Y50/02

    Abstract: Devices, systems and methods for calibrating and operating an additive manufacturing system are disclosed. A calibration system for an electron beam additive manufacturing system having a plurality of electron beam guns includes a calibration probe positioned in a build chamber of the electron beam additive manufacturing system, a sensing device positioned to measure and acquire a response generated as a result of impingement of electron beams emitted from the plurality of electron beam guns on the calibration probe, the sensing device generating a response signal as a result of the measured and acquired response, and an analysis component communicatively coupled to the sensing device and programmed to analyze and evaluate the response signal.

    METHOD AND DEVICE FOR PRODUCING THREE-DIMENSIONAL OBJECTS
    13.
    发明申请
    METHOD AND DEVICE FOR PRODUCING THREE-DIMENSIONAL OBJECTS 有权

    公开(公告)号：US20220176458A1

    公开(公告)日：2022-06-09

    申请号：US17682226

    申请日：2022-02-28

    Applicant: Arcam AB

    Inventor： Anders Snis

    IPC: B22F12/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K15/00 ,  B29C64/268 ,  B23K15/06 ,  B29C64/277 ,  B23K26/082 ,  B22F3/10 ,  B23K26/08

    Abstract: A method for producing three-dimensional objects layer by layer using a powdery material which can be solidified by irradiating it with at least two electron beams, said method comprises a pre-heating step, wherein the pre-heating step comprises the sub-step of scanning a pre-heating powder layer area (100) by scanning a first electron beam in a first region (I) and by scanning a second electron beam in a second region (II) distributed over the pre-heating powder layer area (100), wherein consecutively scanned paths are separated by, at least, a security distance (ΔY), said sub-step further comprising the step of synchronising the preheating of said first and second electron beams when simultaneously preheating said powder material within said first and second regions respectively, so that said first and second electron beams are always separated to each other with at least a minimum security distance (ΔX).

    Energy beam size verification
    16.
    发明授权
    Energy beam size verification 有权
    能量束尺寸验证

    公开(公告)号：US09347770B2

    公开(公告)日：2016-05-24

    申请号：US14750779

    申请日：2015-06-25

    Applicant: Arcam AB

    Inventor： Anders Snis

    IPC: G01J5/02 ,  G01B11/14 ,  B22F3/105 ,  G01B11/00 ,  G01B15/00 ,  G01P3/36 ,  G01P21/00 ,  B23K15/02 ,  B23K26/03 ,  B23K26/04 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y40/00

    CPC classification number: G01M11/02 ,  B22F3/1055 ,  B22F2003/1057 ,  B23K15/0013 ,  B23K15/0086 ,  B23K15/02 ,  B23K26/032 ,  B23K26/04 ,  B23K26/046 ,  B23K26/082 ,  B23K26/342 ,  B23K26/70 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  G01B11/00 ,  G01B11/14 ,  G01B15/00 ,  G01P3/36 ,  G01P21/00 ,  H01J37/244

    Abstract: A method for verifying a size of an energy beam spot, said method comprising the steps of providing a first beam spot having a predetermined size and power at a first position on a work piece, varying a focus and/or astigmatism lens setting for said first beam spot until max intensity for the beam spot is detected, comparing the detected settings of said focus lens and/or astigmatism lens for said maximum intensity of the beam spot with stored settings of said focus lens and/or astigmatism lens for the beam spot with said predetermined size and power, repeating step a-c for different predetermined beam powers, repeating step a-d for different positions on said work piece, wherein said beam spot size is verified if each detected settings of said focus lens and/or astigmatism lens are deviating less than a predetermined value from corresponding stored settings of said focus lens and/or astigmatism lens.

    Abstract translation: 一种用于验证能量束点的尺寸的方法，所述方法包括以下步骤：在工件上的第一位置处提供具有预定尺寸和功率的第一束斑，改变所述第一和第二像素的焦点和/或像散透镜设置 检测到光束点的最大强度的光束点，将所述聚焦透镜和/或散光透镜的检测设置与所述光束点的所述最大强度的比较与所述聚焦透镜和/或用于光束点的散光透镜的存储设置进行比较， 所述预定尺寸和功率，对于不同的预定光束功率重复步骤ac，对所述工件上的不同位置重复步骤ad，其中如果所述聚焦透镜和/或像散透镜的每个检测到的设置偏离小于 来自所述聚焦透镜和/或像散透镜的相应存储设置的预定值。

    ENERGY BEAM SIZE VERIFICATION
    19.
    发明申请
    ENERGY BEAM SIZE VERIFICATION 有权
    能量束尺寸验证

    公开(公告)号：US20160202042A1

    公开(公告)日：2016-07-14

    申请号：US15077155

    申请日：2016-03-22

    Applicant: Arcam AB

    Inventor： Anders Snis

    IPC: G01B11/14

    CPC classification number: G01M11/02 ,  B22F3/1055 ,  B22F2003/1057 ,  B23K15/0013 ,  B23K15/0086 ,  B23K15/02 ,  B23K26/032 ,  B23K26/04 ,  B23K26/046 ,  B23K26/082 ,  B23K26/342 ,  B23K26/70 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  G01B11/00 ,  G01B11/14 ,  G01B15/00 ,  G01P3/36 ,  G01P21/00 ,  H01J37/244

    Abstract: A method for verifying a size of an energy beam spot, said method comprising the steps of providing a first beam spot having a predetermined size and power at a first position on a work piece, varying a focus and/or astigmatism lens setting for said first beam spot until max intensity for the beam spot is detected, comparing the detected settings of said focus lens and/or astigmatism lens for said maximum intensity of the beam spot with stored settings of said focus lens and/or astigmatism lens for the beam spot with said predetermined size and power, repeating step a-c for different predetermined beam powers, repeating step a-d for different positions on said work piece, wherein said beam spot size is verified if each detected settings of said focus lens and/or astigmatism lens are deviating less than a predetermined value from corresponding stored settings of said focus lens and/or astigmatism lens.

    Abstract translation: 一种用于验证能量束点的尺寸的方法，所述方法包括以下步骤：在工件上的第一位置处提供具有预定尺寸和功率的第一束斑，改变所述第一和第二像素的焦点和/或像散透镜设置 检测到光束点的最大强度的光束点，将所述聚焦透镜和/或散光透镜的检测设置与所述光束点的所述最大强度的比较与所述聚焦透镜和/或用于光束点的散光透镜的存储设置进行比较， 所述预定尺寸和功率，对于不同的预定光束功率重复步骤ac，对所述工件上的不同位置重复步骤ad，其中如果所述聚焦透镜和/或像散透镜的每个检测到的设置偏离小于 来自所述聚焦透镜和/或像散透镜的相应存储设置的预定值。

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