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公开(公告)号：US20160054121A1
公开(公告)日：2016-02-25
申请号：US14750779
申请日：2015-06-25
Applicant: Arcam AB
Inventor： Anders Snis
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.
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公开(公告)号：US20150283613A1
公开(公告)日：2015-10-08
申请号：US14636607
申请日：2015-03-03
Applicant: ARCAM AB
Inventor： Johan Backlund , Tomas Lock
CPC classification number: B22F3/1055 , B22F2003/1056 , B22F2003/1057 , B23K15/0013 , B23K15/0086 , B23K15/02 , B23K26/0643 , B23K26/0648 , B23K26/0732 , B23K26/0738 , B23K26/342 , B23K26/702 , B28B1/001 , B28B17/0081 , B29C64/153 , B29C64/386 , B29K2105/251 , B33Y10/00 , B33Y30/00 , B33Y50/02 , G02B27/0911 , Y02P10/295
Abstract: Various embodiments of the present invention relate to a method for welding a workpiece comprising the steps of: making a first weld at a first position on said workpiece with a high energy beam, deflecting the high energy beam with at least one deflection lens for making a second weld at a second position on said workpiece, focusing the high energy beam on said workpiece with at least one focusing lens, shaping the high energy beam on said workpiece with at least one astigmatism lens so that the shape of the high energy beam on said workpiece is longer in a direction parallel to a deflection direction of said high energy beam than in a direction perpendicular to said deflection direction of said high energy beam. The invention is also related to the use of an astigmatism lens and to a method for forming a three dimensional article.
Abstract translation: 本发明的各种实施例涉及一种用于焊接工件的方法，包括以下步骤：用高能束在所述工件上的第一位置处进行第一焊接，用至少一个偏转透镜偏转高能束，以使 在所述工件上的第二位置处的第二焊缝，用至少一个聚焦透镜将高能束聚焦在所述工件上，用至少一个散光透镜将所述高能束束形成在所述工件上，使得所述高能束 工件在与所述高能束的偏转方向平行的方向上比在所述高能束的所述偏转方向垂直的方向上更长。 本发明还涉及散光透镜的使用和三维制品的形成方法。
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73.发明授权Method and apparatus for increasing the resolution in additively manufactured three-dimensional articles 有权用于增加附加制造的三维制品中的分辨率的方法和装置公开(公告)号：US09079248B2
公开(公告)日：2015-07-14
申请号：US14349052
申请日：2012-12-04
Applicant: Arcam AB
Inventor： Ulf Ackelid
CPC classification number: B22F3/1055 , B22F3/1039 , B22F3/105 , B22F3/24 , B22F2201/10 , B22F2201/11 , B22F2201/12 , B22F2201/20 , B22F2999/00 , B23K15/00 , B23K26/342 , B29C64/00 , B29C64/153 , B29C67/00 , B33Y30/00 , Y02P10/295 , Y10T428/12028 , B22F2201/013 , B22F2201/02 , B22F2201/30 , B22F2201/04 , B22F2201/016
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.
Abstract translation: 一种用于通过粉末床部分的连续融合来形成三维制品时的分辨率的方法，所述方法包括提供真空室，提供电子枪，在所述真空室内的工作台上提供第一粉末层， 将来自所述电子枪的电子束引导到所述工作台上，使粉末层在所选择的位置熔化以形成所述三维制品的第一横截面，在所述工作台上提供第二粉末层， 使所述第二粉末层在所选择的位置熔合以形成所述三维制品的第二横截面，从而在提供所述第一粉末层之间将真空室中的压力从第一压力水平降低到第二压力水平 和所述第二粉末层。
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公开(公告)号：US20150174658A1
公开(公告)日：2015-06-25
申请号：US14547549
申请日：2014-11-19
Applicant: Arcam AB
Inventor： Ulric Ljungblad
IPC: B22F3/105
CPC classification number: B22F3/1055 , B22F2003/1056 , B22F2003/1057 , B29C64/153 , B29C64/20 , B29C64/386 , B33Y10/00 , B33Y50/02 , Y02P10/295
Abstract: A method for forming a three-dimensional article through successive fusion of parts of a powder bed comprising: providing a model of the three dimensional article, applying a first powder layer on a work table, directing an energy beam over the work table causing the first powder layer to fuse in selected locations according to the model to form a first cross section of the three-dimensional article, applying a second powder layer on the work table, directing the energy beam over the work table causing the second powder layer to fuse in selected locations according to the model to form a second cross section of the three-dimensional article, wherein the second layer is bonded to the first layer, detecting a local thickness in at least two positions in at least the second powder layer, varying an energy beam parameter depending on the detected local thickness of the second powder layer.
Abstract translation: 一种用于通过粉末床部分的连续融合形成三维制品的方法，包括：提供三维制品的模型，在工作台上施加第一粉末层，将能量束引导到工作台上，使第一 粉末层根据模型在所选择的位置熔合以形成三维制品的第一横截面，将第二粉末层施加在工作台上，将能量束引导到工作台上，使第二粉末层熔化 根据模型选择的位置以形成三维制品的第二横截面，其中第二层结合到第一层，在至少第二粉末层中的至少两个位置检测局部厚度，改变能量 光束参数取决于检测到的第二粉末层的局部厚度。
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公开(公告)号：US20150165525A1
公开(公告)日：2015-06-18
申请号：US14547530
申请日：2014-11-19
Applicant: Arcam AB
Inventor： Daniel Jonasson
CPC classification number: B22F3/1055 , B23K15/0086 , B28B1/001 , B29C64/153 , B29C64/386 , B29K2105/251 , B33Y10/00 , B33Y50/02 , Y02P10/295
Abstract: The present invention relates to a method for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article, said method comprising the steps of: providing at least one electron beam source emitting an electron beam for heating and/or fusing said powder material. Controlling the electron beam source in a first mode when said formation of said three dimensional article is in a first process step. Controlling said electron beam in a second mode when said formation of said three dimensional article is in a second process step, wherein in said first mode an electron beam current from said electron beam source is controlled in a feed-forward mode and in said second mode said electron beam current is controlled in a feed-back mode.
Abstract translation: 本发明涉及一种通过连续地沉积熔合在一起以形成制品的粉末材料的各层来形成三维制品的方法，所述方法包括以下步骤：提供至少一个发射电子的电子束源 用于加热和/或熔化所述粉末材料的光束。 当所述三维制品的形成处于第一工艺步骤中时，以第一模式控制电子束源。 当所述三维制品的形成处于第二工艺步骤中时，以第二模式控制所述电子束，其中在所述第一模式中，来自所述电子束源的电子束电流被控制在前馈模式和所述第二模式 所述电子束电流被控制在反馈模式。
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Patent Agency Ranking
公开(公告)号：US20150151490A1
公开(公告)日：2015-06-04
申请号：US14618748
申请日：2015-02-10
Applicant: Arcam AB
Inventor： Daniel Jonasson , Morgan Larsson , Ulf Ackelid , Anders Snis , Tomas Lock
IPC: B29C67/00
CPC classification number: B29C64/20 , B22F3/1055 , B22F2003/1056 , B22F2003/1057 , B22F2999/00 , B29C64/153 , B29C64/386 , B29C64/393 , B29L2009/00 , B33Y30/00 , Y02P10/295 , B22F2203/03
Abstract: The invention 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, 10 a, 10 b, 10 c, 10 d, 10 e) capable of generating a signal (S) upon detection of lifting of powdery material from the working area (5).
Abstract translation: 本发明涉及一种用于使用粉末材料逐层生产三维物体（6）的装置（1），该粉末材料可以通过用带电粒子束（4）照射而固化，所述装置（1）包括用于连续 将粉末层施加到工作台上，以及用于输送所述带电粒子束（4）的辐射枪（3），其中本发明的设备（1）包括粉末起重检测装置（10,10a，10b， 10c，10d，10e），其能够在检测到从工作区域（5）提起粉末材料时产生信号（S）。
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公开(公告)号：US20150086409A1
公开(公告)日：2015-03-26
申请号：US14452294
申请日：2014-08-05
Applicant: Arcam AB
Inventor： Calle Hellestam
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 comprising applying a first powder layer on a work table; directing a first energy causing said first powder layer to fuse in first selected locations to form a first cross section where said first energy beam is fusing a first region with parallel scan lines in a first direction and a second region with parallel scan lines in a second direction; fusing at least one of the scan lines in said first region in said first direction immediately before fusing at least one of said scan lines in said second region in said second direction; applying a second powder layer and directing the energy beam causing said second powder layer to fuse in second selected locations where the energy beam is fusing said first region with parallel scan lines in a third direction and said second region in a fourth direction.
Abstract translation: 一种用于形成三维制品的方法，包括将第一粉末层施加在工作台上; 引导第一能量，使所述第一粉末层在第一选定位置熔化以形成第一横截面，其中所述第一能量束将第一区域与第一方向上的平行扫描线熔合，并且第二区域具有平行扫描线 方向; 在所述第二方向上的所述第二区域中的至少一个所述扫描线熔接之前，将所述第一区域中的所述扫描线中的至少一条在所述第一方向熔合; 施加第二粉末层并引导能量束，使得所述第二粉末层在第二选定位置熔化，其中能量束在第三方向上与平行扫描线在第三方向上熔合所述第一区域，而所述第二区域在第四方向上熔化。
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公开(公告)号：US20140314964A1
公开(公告)日：2014-10-23
申请号：US14230922
申请日：2014-03-31
Applicant: ARCAM AB
Inventor： Ulf Ackelid
CPC classification number: B22F3/1055 , B05D3/068 , B22F1/025 , B22F2003/1056 , B22F2998/10 , B22F2999/00 , B28B1/001 , B29C64/153 , B33Y10/00 , B33Y30/00 , B33Y70/00 , C23C14/00 , C23C14/223 , C23C16/4417 , Y02P10/295 , C23C16/00 , B22F2202/01
Abstract: Various embodiments provide a method and apparatus 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 in an additive manufacturing machine, which parts corresponds to successive cross sections of the three-dimensional article. The method comprises the steps of: applying a layer of predetermined thickness of powder particles on the work table, applying a coating on at least a portion of the powder particles, which coating is at least partially covering the powder particles, and fusing the powder particles on the work table with an electron beam.
Abstract translation: 各种实施例提供了一种用于通过连续熔化设置在添加剂制造机器的工作台上的至少一层粉末床的部分的三维制品的形成方法和装置，该部分对应于三维制品的连续横截面， 三维文章。 该方法包括以下步骤：将预定厚度的粉末颗粒层施加在工作台上，在至少部分粉末颗粒上施加涂层，该涂层至少部分地覆盖粉末颗粒，并将粉末颗粒 在工作台上用电子束。
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公开(公告)号：US20140314609A1
公开(公告)日：2014-10-23
申请号：US14230957
申请日：2014-03-31
Applicant: Arcam AB
Inventor： Ulric Ljungblad , Lars Loewgren , Anders Snis , Mattias Fager
CPC classification number: B22F3/1055 , B22F3/12 , B22F2003/1056 , B23K15/00 , B29C64/153 , Y02P10/295
Abstract: An apparatus for forming at least one three-dimensional article by fusing parts of a powder bed layer-wise. The apparatus comprising a powder distributor and an energy beam for fusing the powder layer. Said powder distributor comprises a first part being an elongated rod provided movable at a predetermined distance above the powder bed and with its central axis in parallel with a top surface of said work table and second part being a metal foil having at least a first and a second opposite edge portions. Said metal foil is provided between said elongated rod and said work table, said first and second opposite edge portions are attached to said elongated rod so that a distance between said first and second edge portions is smaller than the distance between said first and second edge portions of said metal foil when said metal foil is in a flat position.
Abstract translation: 一种用于通过将粉末床的部分层压成型来形成至少一个三维制品的装置。 该装置包括粉末分配器和用于熔化粉末层的能量束。 所述粉末分配器包括第一部分，所述第一部分是细长杆，其设置成可在所述粉末床的上方以预定距离移动，并且其中心轴与所述工作台的顶表面平行;第二部分是金属箔，其具有至少第一和第 第二相对边缘部分。 所述金属箔设置在所述细长杆和所述工作台之间，所述第一和第二相对边缘部分附接到所述细长杆，使得所述第一和第二边缘部分之间的距离小于所述第一和第二边缘部分之间的距离 当所述金属箔处于平坦位置时。
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公开(公告)号：US20130300286A1
公开(公告)日：2013-11-14
申请号：US13828112
申请日：2013-03-14
Applicant: ARCAM AB
Inventor： Ulric Ljungblad , Mattias Svensson
IPC: H01J29/52
CPC classification number: H01J29/52 , B29C64/153 , B33Y10/00 , B33Y30/00 , H01J37/077 , H01J37/305 , H01J37/3178 , H01J2237/043 , H01J2237/3128 , H01J2237/31732
Abstract: Various embodiments of the present invention relate to a plasma electron source apparatus. The apparatus comprises a cathode discharge chamber in which a plasma is generated, an exit hole provided in said cathode discharge chamber from which electrons from the plasma are extracted by an accelerating field provided between said cathode discharge chamber and an anode, at least one plasma confinement device, and a switching mechanism for switching the at least one plasma confinement device between a first value allowing for electron extraction from the plasma and a second value prohibiting electron extraction from the plasma. Associated methods are also provided.
Abstract translation: 本发明的各种实施方式涉及等离子体电子源装置。 该装置包括：阴极放电室，其中产生等离子体，设置在所述阴极放电室中的出射孔，来自等离子体的电子由所述阴极放电室和阳极之间的加速场提取，至少一个等离子体限制 装置和切换机构，用于在允许从等离子体提取电子的第一值和禁止从等离子体中提取电子的第二值之间切换至少一个等离子体约束装置。 还提供了相关的方法。
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