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    1.
    发明专利
    未知

    公开(公告)号：DE602005016848D1

    公开(公告)日：2009-11-05

    申请号：DE602005016848

    申请日：2005-05-11

    Applicant: ARCAM AB

    Inventor： WALLGREN GOERAN ,  ACKELID ULF ,  SVENSSON MATTIAS

    IPC: B22F3/105 ,  B29C67/00

    Abstract: Systems, apparatus, and methods feed and distribute a powder over a working area used for producing three-dimensional objects. A powder storage unit contains a supply of powder, and a distribution member is arranged to be moveable across the working area to distribute a portion of powder onto the working area. In an embodiment, the distribution member is, in a first step, moveable a predetermined distance into a supply of powder placed in the powder storage unit, said distance being sufficiently long to bring about a transfer of a portion of powder from the powder supply at one side of the distribution member to another side of the distribution member facing the working area, and the distribution member is, in a second step, moveable towards and across the working area to distribute the portion of powder onto the working area. Other embodiments are disclosed.

    POWDER DISTRIBUTION IN ADDITIVE MANUFACTURING OF THREE DIMENSIONAL/ARTICLES
    2.
    发明申请
    POWDER DISTRIBUTION IN ADDITIVE MANUFACTURING OF THREE DIMENSIONAL/ARTICLES 审中-公开
    三维/文章补充制造中的粉末分布

    公开(公告)号：WO2015032590A3

    公开(公告)日：2015-05-07

    申请号：PCT/EP2014067095

    申请日：2014-08-08

    Applicant: ARCAM AB

    Inventor： NORDKVIST JOHAN ,  ACKELID ULF ,  SNIS ANDERS

    IPC: B22F1/00 ,  B22F3/105 ,  B28B1/00 ,  B29C67/00

    CPC classification number: B22F1/0014 ,  B22F3/008 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1059 ,  B23K15/0086 ,  B23K26/342 ,  B28B1/001 ,  B29C64/153 ,  Y02P10/24 ,  Y02P10/295

    Abstract: The present invention relates to a method for forming a three-dimensional article through successive fusion of parts of at least one layer of a powder bed provided on a work table. Said method comprising the steps of: providing at least a first and second powder tank, providing a first type of powder in said first powder tank having a first particle size distribution, providing a second type of powder in said second powder tank having a second particle size distribution, providing a first sub-layer of said first type of powder on said work table, providing a second sub-layer of said second type of powder on top of said first layer of said first type of powder, fusing said first and second sub-layers simultaneously with a high energy beam from a high energy beam source for forming a first cross section of said three-dimensional article.

    Abstract translation: 本发明涉及通过连续融合设置在工作台上的至少一层粉末床的部分来形成三维制品的方法。 所述方法包括以下步骤：提供至少第一和第二粉末罐，在所述第一粉末槽中提供具有第一粒度分布的第一类型的粉末，在所述第二粉末槽中提供第二类型的粉末，其具有第二颗粒 在所述工作台上提供所述第一类粉末的第一子层，在所述第一类粉末的第一层的顶部上提供所述第二类型粉末的第二子层，将所述第一和第二粉末熔化 子层与来自高能束源的高能束同时形成所述三维制品的第一横截面。

    METHOD AND APPARATUS FOR INCREASING THE RESOLUTION IN ADDITIVELY MANUFACTURED THREE DIMENSIONAL ARTICLES
    3.
    发明专利
    METHOD AND APPARATUS FOR INCREASING THE RESOLUTION IN ADDITIVELY MANUFACTURED THREE DIMENSIONAL ARTICLES 未知

    公开(公告)号：IN3184DEN2014A

    公开(公告)日：2015-05-22

    申请号：IN3184DEN2014

    申请日：2014-04-22

    Applicant: ARCAM AB

    Inventor： ACKELID ULF

    IPC: B29C67/00 ,  B22F3/105

    Abstract: A method for increasing the resolution when forming a three dimensional article through successive fusion of parts of a powder bed said method comprising providing a vacuum chamber providing an electron gun providing a first powder layer on a work table inside said vacuum chamber directing an electron beam from said electron gun over said work table causing the powder layer to fuse in selected locations to form a first cross section of said three dimensional article providing a second powder layer on said work table directing the electron beam over said work table causing said second powder layer to fuse in selected locations to form a second cross section of said three dimensional article reducing the pressure in the vacuum chamber from a first pressure level to a second pressure level between the providing of said first powder layer and said second powder layer.

    4.
    发明专利
    未知

    公开(公告)号：AT443587T

    公开(公告)日：2009-10-15

    申请号：AT05748734

    申请日：2005-05-11

    Applicant: ARCAM AB

    Inventor： WALLGREN GOERAN ,  ACKELID ULF ,  SVENSSON MATTIAS

    IPC: B22F3/105 ,  B29C67/00

    Abstract: Systems, apparatus, and methods feed and distribute a powder over a working area used for producing three-dimensional objects. A powder storage unit contains a supply of powder, and a distribution member is arranged to be moveable across the working area to distribute a portion of powder onto the working area. In an embodiment, the distribution member is, in a first step, moveable a predetermined distance into a supply of powder placed in the powder storage unit, said distance being sufficiently long to bring about a transfer of a portion of powder from the powder supply at one side of the distribution member to another side of the distribution member facing the working area, and the distribution member is, in a second step, moveable towards and across the working area to distribute the portion of powder onto the working area. Other embodiments are disclosed.

    METHOD AND APPARATUS FOR PRODUCING THREE-DIMENSIONAL OBJECTS
    7.
    发明公开
    METHOD AND APPARATUS FOR PRODUCING THREE-DIMENSIONAL OBJECTS 有权
    用于产生三维物体的方法和设备

    公开(公告)号：EP2231352A4

    公开(公告)日：2013-03-27

    申请号：EP08705182

    申请日：2008-01-03

    Applicant: ARCAM AB

    Inventor： JONASSON DANIEL ,  LARSSON MORGAN ,  ACKELID ULF ,  SNIS ANDERS ,  LOCK TOMAS

    IPC: B22F3/105 ,  B29C67/00

    CPC classification number: B29C64/20 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/386 ,  B29C64/393 ,  B29C67/0085 ,  B29L2009/00 ,  B33Y30/00 ,  Y02P10/295 ,  B22F2203/03

    Abstract: The invention concerns a method for producing three-dimensional objects (6) layer by layer using a powdery material which can be solidified by irradiating it with a beam (4) of charged particles, which method comprises the following steps: successive application of powder layers to a working area (5), and fusing together successive layers of said three-dimensional object (6) by successively irradiating the powdery layers with said beam (4). The invention is characterized in that it comprises the following steps: determining whether lifting of powdery material from the working area (5) occurs using a powder-lifting detection device (10, 10a, 10b, 10c, 1Od, 1Oe) capable of generating a signal (S) upon detection of lifting of powdery material from the working area (5), and interrupting the irradiation of at least a part of the working area (5) where powder lifting occurs using the signal (S) generated by the powder-lifting detection device (10, 10a, 10b, 10c, 10d, 1Oe) for automatically trigging the interruption. The invention also concerns an apparatus (1) for producing three-dimensional objects (6) layer by layer using a powdery material which can be solidified by irradiating it with a beam (4) of charged particles, said apparatus (1) comprising means for successive application of powder layers to a work table, and a radiation gun (3) for delivering said beam (4) of charged particles, wherein the inventive apparatus (1) comprises a powder-lifting detection device (10, 10a, 10b, 10c, 10d, 10e) capable of generating a signal (S) upon detection of lifting of powdery material from the working area (5).

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