公开(公告)号：US20170106443A1

公开(公告)日：2017-04-20

申请号：US15268849

申请日：2016-09-19

Applicant: Arcam AB

Inventor： Kristofer Karlsson

IPC: B22F3/105 ,  B33Y30/00 ,  B23K26/70 ,  B23K15/00 ,  B23K15/02 ,  B23K26/342 ,  B33Y10/00 ,  B33Y50/02

CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2999/00 ,  B23K15/0086 ,  B23K15/02 ,  B23K26/342 ,  B23K26/70 ,  B29C64/153 ,  B29C64/20 ,  B29L2009/00 ,  B33Y10/00 ,  B33Y30/00 ,  Y02P10/295 ,  B22F3/004

Abstract: Apparatus for producing a three-dimensional object layer by layer using a powdery material which can be solidified by irradiating it with an energy beam, said apparatus comprising: a working area onto which layers of powdery material are to be placed; a powder storage unit, where said base surface is supporting a supply of powder in said powder storage unit; a powder distribution member, a pivoted powder pushing device for bringing a portion of powder from said base surface to a position between said distribution member and said working area, said distribution member further being arranged to be moveable towards and across the working area so as to distribute the portion of powder onto the working area, wherein a first portion of said pivoted powder pushing device is movable under said distribution member. An associated method and computer program product are also provided.

公开(公告)号：US20170080495A1

公开(公告)日：2017-03-23

申请号：US15371637

申请日：2016-12-07

Applicant: Arcam AB

Inventor： Ulf Ackelid

IPC: B22F3/105 ,  C23C14/22 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y30/00 ,  B22F1/02 ,  C23C16/44

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.

公开(公告)号：US20160307731A1

公开(公告)日：2016-10-20

申请号：US15190899

申请日：2016-06-23

Applicant: Arcam AB

Inventor： Tomas Lock

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

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：US20160282848A1

公开(公告)日：2016-09-29

申请号：US15040590

申请日：2016-02-10

Applicant: Arcam AB

Inventor： Calle Hellestam

IPC: G05B19/4099

CPC classification number: G05B19/4099 ,  B22F3/105 ,  B22F3/1055 ,  B22F2003/1057 ,  B23K15/0086 ,  B23K15/02 ,  B23K26/342 ,  B23K26/70 ,  B28B1/001 ,  B29C64/153 ,  B29C64/386 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y50/02 ,  G03F7/0037 ,  G03F7/70416 ,  G05B2219/49023 ,  Y02P10/295

Abstract: A method is provided for forming at least one three-dimensional article through successive fusion of parts of a powder bed. The method involves: providing a model of the at least one three dimensional article, dividing at least two cross sections in said model into a first inner area portion, a second inner area portion and a contour portion, applying a first material layer on a work table, directing at least one energy beam over the work table causing the first material layer to join in selected locations according to the model for forming a partial first cross section of the three dimensional article, applying a second material layer on said work table; and directing at least one energy beam over the work table causing the second material layer to join in selected locations and form a partial second cross section of said three dimensional article.

Abstract translation: 提供了一种用于通过粉末床的部分的连续融合来形成至少一个三维制品的方法。 该方法包括：提供所述至少一个三维制品的模型，将所述模型中的至少两个横截面分成第一内部区域部分，第二内部区域部分和轮廓部分，在工件上施加第一材料层 将至少一个能量束引导到工作台上，使得第一材料层根据用于形成三维制品的局部第一横截面的模型在选定位置连接，在所述工作台上施加第二材料层; 以及将至少一个能量束引导到所述工作台上，使所述第二材料层在所选择的位置连接并形成所述三维制品的部分第二横截面。

公开(公告)号：US20160279735A1

公开(公告)日：2016-09-29

申请号：US15040604

申请日：2016-02-10

Applicant: Arcam AB

Inventor： Calle Hellestam

IPC: B23K15/00 ,  B28B1/00 ,  B23K26/70 ,  B23K15/02 ,  B23K26/342 ,  B29C67/00 ,  B22F3/105

CPC classification number: G05B19/4099 ,  B22F3/105 ,  B22F3/1055 ,  B22F2003/1057 ,  B23K15/0086 ,  B23K15/02 ,  B23K26/342 ,  B23K26/70 ,  B28B1/001 ,  B29C64/153 ,  B29C64/386 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y50/02 ,  G03F7/0037 ,  G03F7/70416 ,  G05B2219/49023 ,  Y02P10/295

Abstract: A method is provided for production of at least one three-dimensional article by successively providing powder layers and fusing together of selected areas of the layers, which areas correspond to partial cross sections of the three-dimensional body. The method involves: applying a first powder layer on a work table, fusing the first powder layer in the selected areas, the selected areas being a full contour of the three dimensional article and a first portion of an inner area of the three-dimensional article, and fusing a second portion of the inner area of the three-dimensional article in the first powder layer completely when the first powder layer is covered with at least one second layer, the second portion being distinct relative to the first portion.

Abstract translation: 提供了一种用于通过连续地提供粉末层并将层的选定区域熔合在一起的方式来生产至少一个三维制品，该区域对应于三维体的部分横截面。 该方法包括：将第一粉末层施加在工作台上，将所选择的区域中的第一粉末层熔合，所选择的区域是三维制品的完整轮廓和三维制品的内部区域的第一部分 并且当第一粉末层被至少一个第二层覆盖时，在第一粉末层中将三维制品的内部区域的第二部分完全熔合，第二部分相对于第一部分是不同的。

公开(公告)号：US20160211116A1

公开(公告)日：2016-07-21

申请号：US14973230

申请日：2015-12-17

Applicant: Arcam AB

Inventor： Tomas Lock

IPC: H01J37/304 ,  H01J37/244 ,  B23K15/00 ,  H01J37/305

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 device for detecting X-rays radiated out of a substrate surface, said device comprising at least one X-ray detector, a resolver grating and a modulator grating, said resolver grating with at least one opening facing towards said X-ray detector is arranged in front of said X-ray detector. Said modulator grating is provided between said resolver grating and said substrate at a predetermined distance from said resolver grating and said substrate, where said modulator grating having a plurality of openings in at least a first direction, wherein said x-rays from said surface is spatially modulated with said modulator grating and resolver grating.

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。

公开(公告)号：US20150174695A1

公开(公告)日：2015-06-25

申请号：US14547538

申请日：2014-11-19

Applicant: Arcam AB

Inventor： Isak Elfstroem ,  Calle Hellestam ,  Mattias Fager

IPC: B23K15/00 ,  B23K26/08 ,  B23K26/34 ,  B23K15/02 ,  B23K15/10

CPC classification number: B23K15/0086 ,  B22F3/1055 ,  B23K15/02 ,  B23K15/10 ,  B23K26/08 ,  B29C64/153 ,  B29C64/386 ,  Y02P10/295

Abstract: The invention relates to a method for forming a three-dimensional article through successive fusion of locations of a powder bed. The method comprising: providing a model of said three-dimensional article; applying a powder layer on a work table; determining a maximum scan length of an energy beam; directing said energy beam from a first energy beam source over said work table with constant energy 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, wherein locations with a shorter scan length than said maximum scan length is provided with a time sink before and/or after said scan line so that the time period between each two adjacent scan lines is constant throughout the manufacture of said three-dimensional article.

Abstract translation: 本发明涉及通过粉末床位置的连续熔化来形成三维制品的方法。 该方法包括：提供所述三维制品的模型; 在工作台上涂抹粉末层; 确定能量束的最大扫描长度; 将来自第一能量束源的所述能量束以恒定能量引导到所述工作台上，使得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，其中具有较短的位置 在所述扫描线之前和/或之后，在所述最大扫描长度上的扫描长度设置有时间信号，使得在所述三维制品的制造过程中，每两条相邻扫描线之间的时间段是恒定的。

公开(公告)号：US20150165524A1

公开(公告)日：2015-06-18

申请号：US14547584

申请日：2014-11-19

Applicant: Arcam AB

Inventor： Ulric Ljungblad ,  Ulf Ackelid

IPC: B22F3/00 ,  B22F3/105 ,  B28B17/00 ,  B28B1/00 ,  B29C67/00

CPC classification number: B22F3/008 ,  B22F3/1055 ,  B22F2003/1057 ,  B28B1/001 ,  B28B17/0081 ,  B29C64/153 ,  B29C64/386 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y50/02

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, the method comprising the step of heating a first portion of a support surface while depositing a layer of powder material on a second portion of the support surface.

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，该方法包括以下步骤：加热支撑表面的第一部分同时沉积 在支撑表面的第二部分上的粉末材料层。

公开(公告)号：US20140308153A1

公开(公告)日：2014-10-16

申请号：US14349283

申请日：2012-12-05

Applicant: ARCAM AB

Inventor： Ulric Ljungblad

IPC: B22F3/105

CPC classification number: B22F3/1055 ,  B22F3/15 ,  B22F2003/1056 ,  B29C64/153 ,  B32B15/01 ,  B32B15/012 ,  B32B15/013 ,  C22C14/00 ,  C22C19/07 ,  C22C21/00 ,  C22C38/00 ,  G01N21/9515 ,  Y02P10/295

Abstract: A method for detecting defects in three-dimensional articles. Providing a model of said article. Providing a first powder layer on a substrate, directing an energy beam over said substrate causing said first powder layer to fuse in selected locations forming a first cross section of said three-dimensional article, providing a second powder layer on said substrate, directing the energy beam over said substrate causing said second powder layer to fuse in selected locations to form a second cross section of said three-dimensional article. A first and second image of a first and second fusion zone of said first powder layer respectively is captured. Comparing said first and second images with corresponding layers in said model. Detecting a defect in the three-dimensional article if a deviation in said first image with respect to said model is at least partially overlapping a deviation in said second image with respect to said model.

Abstract translation: 一种检测三维物品缺陷的方法。 提供所述文章的模型。 在衬底上提供第一粉末层，将能量束引导到所述衬底上，使得所述第一粉末层在形成所述三维制品的第一横截面的选定位置融合，在所述衬底上提供第二粉末层， 将所述第二粉末层熔合在所选择的位置以形成所述三维制品的第二横截面。 分别捕获所述第一粉末层的第一和第二熔融区的第一和第二图像。 将所述第一和第二图像与所述模型中的相应层进行比较。 如果所述第一图像相对于所述模型的偏差与所述模型的所述第二图像的偏差至少部分重叠，则检测所述三维制品中的缺陷。