公开(公告)号：US09897513B2

公开(公告)日：2018-02-20

申请号：US15495318

申请日：2017-04-24

Applicant: ARCAM AB

Inventor： Anders Snis

IPC: G01J5/02 ,  G01M11/02 ,  B23K15/00 ,  B23K26/03 ,  B23K26/342 ,  B23K26/046 ,  B23K15/02 ,  B33Y50/02 ,  H01J37/244

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.

公开(公告)号：US20170341141A1

公开(公告)日：2017-11-30

申请号：US15495250

申请日：2017-04-24

Applicant: Arcam AB

Inventor： Ulf Ackelid

IPC: B22F3/10 ,  B33Y10/00 ,  C22C14/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B23K26/12 ,  B23K26/00 ,  B23K15/02 ,  B23K15/00 ,  B22F3/24 ,  B22F3/15 ,  B22F3/105 ,  B22F1/00 ,  B23K26/70 ,  B23K26/342 ,  C23C8/08 ,  B23K103/14

CPC classification number: B22F3/1055 ,  B22F3/1039 ,  B22F3/15 ,  B22F3/24 ,  B22F2003/1056 ,  B22F2003/241 ,  B22F2998/10 ,  B22F2999/00 ,  B23K15/0026 ,  B23K15/0086 ,  B23K15/0093 ,  B23K15/02 ,  B23K15/10 ,  B23K26/0006 ,  B23K26/126 ,  B23K26/127 ,  B23K26/342 ,  B23K26/702 ,  B23K2103/04 ,  B23K2103/08 ,  B23K2103/14 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y70/00 ,  C22C1/0458 ,  C22C14/00 ,  C23C8/08 ,  Y02P10/295 ,  B22F2201/013 ,  B22F2201/10 ,  B22F2201/016 ,  B22F2201/02 ,  B22F2201/30

Abstract: A method for forming a three-dimensional article through successive fusion of parts of a metal powder bed is provided, comprising the steps of: distributing a first metal powder layer on a work table inside a build chamber, directing at least one high energy beam from at least one high energy beam source over the work table causing the first metal powder layer to fuse in selected locations, distributing a second metal powder layer on the work table, directing at least one high energy beam over the work table causing the second metal powder layer to fuse in selected locations, introducing a first supplementary gas into the build chamber, which first supplementary gas comprising hydrogen, is capable of reacting chemically with or being absorbed by a finished three-dimensional article, and releasing a predefined concentration of the gas which had reacted chemically with or being absorbed by the finished three dimensional article.

公开(公告)号：US20170227417A1

公开(公告)日：2017-08-10

申请号：US15495318

申请日：2017-04-24

Applicant: ARCAM AB

Inventor： Anders Snis

IPC: G01M11/02 ,  B23K26/03 ,  B33Y50/02 ,  B23K26/046 ,  B23K15/02 ,  B23K15/00 ,  B23K26/342

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.

公开(公告)号：US20170136541A1

公开(公告)日：2017-05-18

申请号：US15290635

申请日：2016-10-11

Applicant: Arcam AB

Inventor： Mattias Fager

IPC: B22F3/105 ,  B33Y30/00 ,  B23K15/02 ,  B22F3/10 ,  B23K15/00 ,  B33Y10/00 ,  B33Y50/02

Abstract: The present invention relates to a method for prolonging lifetime of a triod electron beam source when forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article, the method comprising the steps of: adjusting a cathode heating power at a predetermined value above a threshold heating value, which threshold heating value creates a predetermined X-ray signal emanating from the triod electron beam source, fusing the three-dimensional article with the electron beam source having the cathode heating power at a predetermined value above a threshold heating value.

公开(公告)号：US09561542B2

公开(公告)日：2017-02-07

申请号：US14439209

申请日：2012-11-06

Applicant: Arcam AB

Inventor： Ulf Ackelid

IPC: B22F1/00 ,  B22F3/105 ,  B29C67/00 ,  B28B1/00 ,  B28B17/02 ,  B29B13/06 ,  B22F7/00 ,  B33Y10/00 ,  B33Y40/00 ,  B29K105/00

CPC classification number: B22F1/0085 ,  B22F3/1055 ,  B22F2003/1056 ,  B28B1/001 ,  B28B17/026 ,  B29B13/065 ,  B29C64/153 ,  B29C64/20 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y40/00 ,  Y02P10/295

Abstract: The present invention relates to a method for removing moisture from powder to be used in an additive manufacturing process 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, which parts corresponds to successive cross sections of the three-dimensional article, characterized in that said method comprising the steps of: providing at least a first powder tank and at least at least a second powder tank, providing a predetermined amount of powder on a movable table inside said first powder tank, heating the top surface of the powder in said first powder tank to a predetermined temperature interval for removing moisture from said powder, raising said movable table a predetermined distance, moving a predetermined thickness of the powder material from said first powder tank to said second powder tank.

Abstract translation: 本发明涉及一种用于从粉末中除去水分的方法，用于通过连续熔化设置在工作台上的至少一层粉末床的部分形成三维制品的添加剂制造方法，该部分对应于 到所述三维制品的连续横截面，其特征在于，所述方法包括以下步骤：提供至少第一粉末罐和至少第二粉末罐，在所述第二粉末罐内的所述可移动台上提供预定量的粉末 将所述第一粉罐中的粉末的上表面加热到预定的温度间隔，以从所述粉末中除去水分，将所述可移动台升高预定距离，将预定厚度的粉末材料从所述第一粉罐移动到 说第二个粉罐。

公开(公告)号：US09550207B2

公开(公告)日：2017-01-24

申请号：US14230922

申请日：2014-03-31

Applicant: ARCAM AB

Inventor： Ulf Ackelid

IPC: B05D3/06 ,  B22F1/02 ,  B22F3/105 ,  B28B1/00 ,  B29C67/00 ,  C23C14/22 ,  C23C16/44 ,  C23C14/00

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。

公开(公告)号：US09543116B2

公开(公告)日：2017-01-10

申请号：US15190899

申请日：2016-06-23

Applicant: Arcam AB

Inventor： Tomas Lock

IPC: A61N5/00 ,  H01J37/304 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y50/02 ,  B28B1/00 ,  B28B17/00 ,  B29C67/00 ,  B22F3/105 ,  B23K15/00 ,  B23K15/02 ,  H01J37/30 ,  H01J37/317 ,  H01J37/305 ,  G01T1/29 ,  B33Y30/00

CPC classification number: H01J37/3045 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B23K15/0013 ,  B23K15/002 ,  B23K15/0026 ,  B23K15/0086 ,  B23K15/02 ,  B28B1/001 ,  B28B17/00 ,  B28B17/0081 ,  B29C64/153 ,  B29C64/20 ,  B29C64/386 ,  B29C67/0077 ,  B29C67/0088 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  G01T1/295 ,  H01J37/09 ,  H01J37/244 ,  H01J37/30 ,  H01J37/3005 ,  H01J37/304 ,  H01J37/305 ,  H01J37/317 ,  H01J2237/0453 ,  H01J2237/2445 ,  H01J2237/2448 ,  H01J2237/24514 ,  H01J2237/2826 ,  H01J2237/30433 ,  H01J2237/3045 ,  H01J2237/30472 ,  H01J2237/3128 ,  Y02P10/295

Abstract: A method is provided for forming a three-dimensional article through successive fusion of parts of a powder bed. The method includes the steps of: applying a first powder layer on a work table; directing an electron beam from an electron beam source over the work table, the directing of the electron beam causing the first powder layer to fuse in first selected locations according to a pre-determined model, so as to form a first part of a cross section of the three dimensional article, and intensity modulating X-rays from the powder layer or from a clean work table with a patterned aperture modulator and a patterned aperture resolver, wherein a verification of at least one of a size, position, scan speed, or shape of the electron beam is achieved by comparing detected intensity modulated X-ray signals with saved reference values.

Abstract translation: 提供了一种用于通过粉末床的部分的连续熔融来形成三维制品的方法。 该方法包括以下步骤：将第一粉末层施加在工作台上; 将来自电子束源的电子束引导到工作台上，根据预定模型引导使第一粉末层在第一选定位置熔化的电子束，以便形成横截面的第一部分 以及强度调制来自粉末层的X射线或来自具有图案化孔径调制器和图案化孔径分解器的清洁工作台的X射线，其中验证尺寸，位置，扫描速度或 通过将检测到的强度调制的X射线信号与保存的参考值进行比较来实现电子束的形状。

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。

公开(公告)号：US20160129501A1

公开(公告)日：2016-05-12

申请号：US14877428

申请日：2015-10-07

Applicant: Arcam AB

Inventor： Lars Loewgren ,  Martin Wildheim

IPC: B22F3/105

CPC classification number: B22F3/1055 ,  B22F2003/1057 ,  B29C64/153 ,  B33Y10/00 ,  B33Y50/02 ,  Y02P10/295

Abstract: Various embodiments of the present invention relate to a method for forming at a three-dimensional article through successively depositing individual layers of powder material that are fused together with at least one energy beam so as to form the article, said method comprising the steps of generating a model of said three-dimensional article; applying a first powder layer on a work table; directing said at least one energy beam from at least one energy beam source over said work table causing said first powder layer to fuse in first selected locations according to said model to form a first cross section of said three-dimensional article; introducing a predetermined pattern laterally separated from said first cross section for reducing thickness variations in a powder layer provided on top of said first cross section.

Abstract translation: 本发明的各种实施例涉及一种用于通过连续地沉积与至少一个能量束熔合在一起以形成物品的粉末材料的各个层而形成三维制品的方法，所述方法包括以下步骤：产生 所述三维物品的模型; 将第一粉末层施加在工作台上; 将来自至少一个能量束源的所述至少一个能量束引导到所述工作台上，使所述第一粉末层根据所述模型在第一选定位置融合，以形成所述三维制品的第一横截面; 引入与所述第一横截面横向分离的预定图案，用于减小设置在所述第一横截面顶部上的粉末层中的厚度变化。

公开(公告)号：US09310188B2

公开(公告)日：2016-04-12

申请号：US14750752

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 deflection speed of an energy beam spot, the method comprising the steps of: providing a predetermined pattern on a work table with the energy beam spot while deflecting the energy beam spot with a first deflection speed, detecting first positions of the energy beam spot on the work table created with the first deflection speed, providing the predetermined pattern on a work table with the energy beam spot while deflecting the energy beam spot with a second deflection speed, detecting second positions of the energy beam spot on the work table created with the second deflection speed, comparing the first and second positions, wherein the deflection speed is verified if each one of the first positions are deviating less than a predetermined distance from corresponding second positions.

Abstract translation: 一种用于验证能量束点的偏转速度的方法，所述方法包括以下步骤：在具有能量束点的工作台上提供预定图案，同时以第一偏转速度偏转能量束点，检测第一位置 在工作台上以第一偏转速度产生能量束斑，在工作台上提供能量束点的预定图案，同时以第二偏转速度偏转能量束点，检测能量束点在工件上的第二位置 以第二偏转速度产生的台，比较第一和第二位置，其中如果每个第一位置偏离小于相应的第二位置的预定距离，则验证偏转速度。