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公开(公告)号：US12241735B2
公开(公告)日：2025-03-04
申请号：US17416232
申请日：2019-03-04
Applicant: Arcam AB
Inventor： Anders Snis
IPC: G01B21/00 , B22F10/28 , B22F12/90 , B29C64/153 , B29C64/393 , G01B21/08 , B22F10/36 , B22F10/368 , B22F12/49 , B22F12/67
Abstract: Disclosed herein are methods for estimating a powder layer thickness in an additive manufacturing machine when forming a three-dimensional article layer by layer. The method comprises applying a first powder layer and selectively melting the first powder layer and thereafter measuring the temperature of the first powder layer at a plurality of times. The method further comprises providing a mathematical function giving a reference temperature as a function of time based on the measured temperatures of the first powder layer, applying a second powder layer on top of the first powder layer and measuring the temperature of the second powder layer at a predetermined time, and estimating the powder layer thickness of the second powder layer based on the measured temperature of the second powder layer and the reference temperature calculated by means of the mathematical function for the predetermined time point.
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公开(公告)号：US20180345374A1
公开(公告)日：2018-12-06
申请号：US15967155
申请日：2018-04-30
Applicant: Arcam AB
Inventor： Anders Snis
IPC: B22F3/105 , B22F3/10 , B23K26/082 , B23K26/08
CPC classification number: B22F3/1055 , B22F2003/1056 , B22F2003/1057 , B23K15/0086 , B29C64/153 , B29C64/20 , B29C64/268 , B29C64/277 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: A method for producing three-dimensional objects layer by layer using a powdery material which can be solidified by irradiating it with at least two electron beams, said method comprises a pre-heating step, wherein the pre-heating step comprises the sub-step of scanning a pre-heating powder layer area (100) by scanning a first electron beam in a first region (I) and by scanning a second electron beam in a second region (II) distributed over the pre-heating powder layer area (100), wherein consecutively scanned paths are separated by, at least, a security distance (ΔY), said sub-step further comprising the step of synchronising the preheating of said first and second electron beams when simultaneously preheating said powder material within said first and second regions respectively, so that said first and second electron beams are always separated to each other with at least a minimum security distance (ΔX).
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3.发明授权公开(公告)号：US09505057B2
公开(公告)日：2016-11-29
申请号：US14252984
申请日：2014-04-15
Applicant: Arcam AB
Inventor： Johan Nordkvist , Ulf Ackelid , Anders Snis
IPC: B22F3/105 , B23K15/00 , B23K26/342 , B28B1/00 , B29C67/00 , B22F1/00 , B22F3/00 , B33Y10/00 , B33Y30/00
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。
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公开(公告)号：US20160054347A1
公开(公告)日：2016-02-25
申请号：US14750752
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 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。
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公开(公告)号：US20220402036A1
公开(公告)日：2022-12-22
申请号：US17350026
申请日：2021-06-17
Applicant: ARCAM AB
Inventor： Anders Snis
IPC: B22F10/31 , H01J37/22 , H01J37/304 , B22F12/41 , B22F12/45 , B22F12/33 , B22F12/52 , B22F12/90 , B22F10/85 , B33Y50/02 , B33Y30/00 , B33Y10/00
Abstract: Calibration systems, additive manufacturing systems employing the same, and methods of calibrating include a plurality of electron beam guns. One calibration system includes an imaging device positioned to capture one or more images of an impingement of electron beams emitted from the plurality of electron beam guns on a surface within a build chamber of the electron beam additive manufacturing system and an analysis component communicatively coupled to the imaging device. The analysis component is programmed to receive image data corresponding to the one or more images, determine one or more calibration parameters from the image data, and transmit one or more instructions to the plurality of electron beam guns in accordance with the one or more calibration parameters.
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Patent Agency Ranking
公开(公告)号：US20170227418A1
公开(公告)日：2017-08-10
申请号：US15495331
申请日：2017-04-24
Applicant: ARCAM AB
Inventor： Anders Snis
IPC: G01M11/02 , B23K26/082 , B33Y50/02 , B23K26/046 , B23K15/02 , B23K26/342 , B23K15/00 , B23K26/03
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 position of an energy beam spot, said method comprising the steps of: providing a calibrated energy beam having a first focus in a at least two positions at a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said first focus, providing said calibrated energy beam having a second focus in said at least two positions at a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said second focus, comparing said at least two positions created with said first and second focus, wherein said position of the energy beam is verified if said positions created with said first focus are deviating less than a predetermined distance from said positions created with said second focus.
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公开(公告)号：US20160202043A1
公开(公告)日：2016-07-14
申请号：US15077200
申请日：2016-03-22
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 position of an energy beam spot, said method comprising the steps of: providing a calibrated energy beam having a first focus in a at least two positions at a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said first focus, providing said calibrated energy beam having a second focus in said at least two positions at a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said second focus, comparing said at least two positions created with said first and second focus, wherein said position of the energy beam is verified if said positions created with said first focus are deviating less than a predetermined distance from said positions created with said second focus.
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公开(公告)号：US09341467B2
公开(公告)日：2016-05-17
申请号：US14750713
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 position of an energy beam spot, said method comprising the steps of: providing a calibrated energy beam having a first focus in a at least two positions at a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said first focus, providing said calibrated energy beam having a second focus in said at least two positions at a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said second focus, comparing said at least two positions created with said first and second focus, wherein said position of the energy beam is verified if said positions created with said first focus are deviating less than a predetermined distance from said positions created with said second focus.
Abstract translation: 一种用于验证能量束点的位置的方法，所述方法包括以下步骤：提供在工作台处的至少两个位置具有第一焦点的校准能量束，检测所述能量束点的所述至少两个位置 在具有所述第一焦点的所述能量束产生的所述工作台上，在工作台上在所述至少两个位置提供所述校准能量束具有第二焦点，检测所述工作台上所述能量束点的所述至少两个位置， 所述能量束具有所述第二焦点，比较由所述第一和第二焦点创建的所述至少两个位置，其中所述能量束的所述位置被验证，如果所述第一焦点产生的所述位置偏离小于距所述位置的预定距离 用第二个焦点创建。
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公开(公告)号：US20160054115A1
公开(公告)日：2016-02-25
申请号：US14750713
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 position of an energy beam spot, said method comprising the steps of: providing a calibrated energy beam having a first focus in a at least two positions at a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said first focus, providing said calibrated energy beam having a second focus in said at least two positions at a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said second focus, comparing said at least two positions created with said first and second focus, wherein said position of the energy beam is verified if said positions created with said first focus are deviating less than a predetermined distance from said positions created with said second focus.
Abstract translation: 一种用于验证能量束点的位置的方法，所述方法包括以下步骤：提供在工作台处的至少两个位置具有第一焦点的校准能量束，检测所述能量束点的所述至少两个位置 在具有所述第一焦点的所述能量束产生的所述工作台上，在工作台上在所述至少两个位置提供所述校准能量束具有第二焦点，检测所述工作台上所述能量束点的所述至少两个位置， 所述能量束具有所述第二焦点，比较由所述第一和第二焦点创建的所述至少两个位置，其中所述能量束的所述位置被验证，如果所述第一焦点产生的所述位置偏离小于距所述位置的预定距离 用第二个焦点创建。
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公开(公告)号：US20140348691A1
公开(公告)日：2014-11-27
申请号：US14244503
申请日：2014-04-03
Applicant: ARCAM AB
Inventor： Ulric Ljungblad , Anders Snis
CPC classification number: B22F3/1055 , B22F2003/1056 , B29C64/153 , B33Y10/00 , B33Y30/00 , Y02P10/295
Abstract: A method for forming a three-dimensional article through successive fusion of parts of a powder bed, which parts corresponds to successive cross sections of the three-dimensional article, said method comprising the steps of: providing a model of said three dimensional article, providing 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 said model to form a first cross section of said three-dimensional article, directing a second energy beam from a second energy beam source over said work table causing said first powder layer to fuse in second selected locations according to said model to form the first cross section of said three-dimensional article, wherein said first and second locations of said first powder layer are at least partially overlapping 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，该部分对应于三维制品的连续横截面，所述方法包括以下步骤：提供所述三维制品的模型，提供 在工作台上的第一粉末层，将来自第一能量束源的第一能量束引导到所述工作台上，使得所述第一粉末层根据所述模型在第一选定位置融合，以形成所述三维的第一横截面 将来自第二能量束源的第二能量束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二选定位置融合，以形成所述三维制品的第一横截面，其中所述第一和第二 所述第一粉末层的位置至少部分地彼此重叠。
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