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    Method for additive manufacturing
    11.
    发明授权
    Method for additive manufacturing 有权

    公开(公告)号：US10786865B2

    公开(公告)日：2020-09-29

    申请号：US14950626

    申请日：2015-11-24

    Applicant: ARCAM AB

    Inventor： Calle Hellestam

    IPC: B23K15/00 ,  B29C64/153 ,  B33Y30/00 ,  B22F3/105 ,  B23K26/144 ,  B23K26/342 ,  B28B1/00 ,  B23K15/02 ,  B33Y10/00 ,  B33Y50/02 ,  B29K105/00

    Abstract: A method for forming at least one three-dimensional article through successive fusion of parts of a powder bed, comprising the steps of: providing at least one model of said three-dimensional article, moving a support structure in z-direction at a predetermined speed while rotating said support structure at a predetermined speed, directing a first and second energy beam causing said powder layer to fuse in first and second selected locations according to said model, wherein a first cover area of said first energy beam on said powder layer is arranged at a predetermined minimum distance and non-overlapping from a second cover area of said second energy beam on said powder layer, a trajectory of said first cover area and a trajectory of said second cover area are at least one of overlapping each other, abutting each other or separated to each other when said support structure is rotated a full lap.

    Method and apparatus for detecting electron beam source filament wear
    12.
    发明授权
    Method and apparatus for detecting electron beam source filament wear 有权

    公开(公告)号：US10529070B2

    公开(公告)日：2020-01-07

    申请号：US16154374

    申请日：2018-10-08

    Applicant: ARCAM AB

    Inventor： Calle Hellestam ,  Mattias Fager

    IPC: G06T7/00 ,  H01J37/22 ,  B33Y30/00 ,  B33Y40/00

    Abstract: A method for detecting electron beam filament wear in an electron beam source, the method comprising the steps of: enlarging a beam spot emanating from the electron beam source on a work table to a predetermined minimum size, capturing an image of the beam spot on the work table by a camera, comparing the captured image of the beam spot with a reference image, and detecting filament wear if the captured image is deviating more than a predetermined value from the reference image.

    APPARATUS FOR ADDITIVE MANUFACTURING
    13.
    发明申请
    APPARATUS FOR ADDITIVE MANUFACTURING 审中-公开

    公开(公告)号：US20170246685A1

    公开(公告)日：2017-08-31

    申请号：US15592752

    申请日：2017-05-11

    Applicant: Arcam AB

    Inventor： Calle Hellestam

    IPC: B22F3/105 ,  B28B17/00 ,  G05B19/4099 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B28B1/00 ,  B29C67/00

    Abstract: An apparatus comprising a control unit configured for applying a first powder layer on a work table, directing a first energy beam from a first energy beam source over said work table causing said first powder layer to fuse in first selected locations according to a corresponding model to form a first cross section of said at least one three-dimensional article, where said first energy beam is fusing a first article with parallel scan lines in a first direction, fusing a second scan line in said first direction in said first layer in said first article within a predetermined time interval after fusing a first scan line in said first article, wherein at least one intermediate scan line is fused within said time interval at another predetermined position and where said first and second scan lines are adjacent to each other.

    METHOD FOR ADDITIVE MANUFACTURING
    16.
    发明申请
    METHOD FOR ADDITIVE MANUFACTURING 审中-公开
    添加剂制造方法

    公开(公告)号：US20160167160A1

    公开(公告)日：2016-06-16

    申请号：US14950626

    申请日：2015-11-24

    Applicant: ARCAM AB

    Inventor： Calle Hellestam

    IPC: B23K15/00 ,  B22F3/105 ,  B23K26/342 ,  B23K26/144 ,  B28B1/00 ,  B23K15/02

    Abstract: A method for forming at least one three-dimensional article through successive fusion of parts of a powder bed, comprising the steps of: providing at least one model of said three-dimensional article, moving a support structure in z-direction at a predetermined speed while rotating said support structure at a predetermined speed, directing a first and second energy beam causing said powder layer to fuse in first and second selected locations according to said model, wherein a first cover area of said first energy beam on said powder layer is arranged at a predetermined minimum distance and non-overlapping from a second cover area of said second energy beam on said powder layer, a trajectory of said first cover area and a trajectory of said second cover area are at least one of overlapping each other, abutting each other or separated to each other when said support structure is rotated a full lap.

    Abstract translation: 一种用于通过粉末床的部分的连续融合形成至少一个三维制品的方法，包括以下步骤：提供所述三维制品的至少一个模型，以预定速度在z方向上移动支撑结构 同时以预定速度旋转所述支撑结构，引导第一和第二能量束，使得所述粉末层根据所述模型在第一和第二选定位置熔化，其中所述粉末层上的所述第一能量束的第一覆盖区域被布置 在预定的最小距离处并且与所述粉末层上的所述第二能量束的第二覆盖区域不重叠，所述第一覆盖区域的轨迹和所述第二覆盖区域的轨迹是彼此重叠的至少一个， 当所述支撑结构旋转整圈时，其它或彼此分离。

    METHOD FOR ADDITIVE MANUFACTURING
    17.
    发明申请
    METHOD FOR ADDITIVE MANUFACTURING 有权
    添加剂制造方法

    公开(公告)号：US20150088295A1

    公开(公告)日：2015-03-26

    申请号：US14452308

    申请日：2014-08-05

    Applicant: Arcam AB

    Inventor： Calle Hellestam

    IPC: G05B19/4099

    CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B28B1/001 ,  B28B17/0081 ,  B29C64/153 ,  B29C64/386 ,  B29C67/0077 ,  B29C67/0088 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G05B19/4099 ,  G05B2219/49023 ,  Y02P10/295

    Abstract: A method for forming a three-dimensional article through successive fusion of parts of a powder bed, applying a first powder layer on a work table, directing a first energy beam from a first energy beam source over said work table causing said first powder layer to fuse in first selected locations according to a corresponding model to form a first cross section of said at least one three-dimensional article, where said first energy beam is fusing a first article with parallel scan lines in a first direction, fusing a second scan line in said first direction in said first layer in said first article within a predetermined time interval after fusing a first scan line in said first article, wherein at least one intermediate scan line is fused within said time interval at another predetermined position and where said first and second scan lines are adjacent to each other.

    Abstract translation: 一种通过连续融合粉末床部分形成三维制品的方法，在工作台上施加第一粉末层，将来自第一能量束源的第一能量束引导到所述工作台上，从而使所述第一粉末层 根据相应的模型在第一选择位置中熔断以形成所述至少一个三维制品的第一横截面，其中所述第一能量束将第一制品与第一方向上的平行扫描线熔合，将第二扫描线 在所述第一制品中熔化第一扫描线之后的预定时间间隔内，在所述第一制品的所述第一层中的所述第一方向上，其中至少一个中间扫描线在所述时间间隔内熔合在另一预定位置，并且其中所述第一和 第二扫描线彼此相邻。

    Platform device
    20.
    发明授权
    Platform device 有权

    公开(公告)号：US11072117B2

    公开(公告)日：2021-07-27

    申请号：US16154415

    申请日：2018-10-08

    Applicant: Arcam AB

    Inventor： Calle Hellestam

    IPC: B29C64/232 ,  B29C64/241 ,  B29C64/153 ,  B22F12/00 ,  B29C64/245 ,  B29C64/393 ,  B29C64/236 ,  B22F10/10 ,  B33Y10/00 ,  B33Y30/00

    Abstract: The invention relates to a platform device (4) for forming a three-dimensional article (2) in an additive manufacturing machine layer by layer by successive fusion of selected areas of powder layers (3), which selected areas correspond to successive layers of the three-dimensional article. The platform device (4) has a support member (5) with a surface (6) for receiving powder. The support member (5) is rotatable about a first rotation axis (13) extending in a direction (15) substantially perpendicular to the surface (6). The support member (5) and the first rotation axis (13) are rotatable about a second rotation axis (14) arranged substantially in parallel with and off-set to the first rotation axis (13).

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