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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：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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公开(公告)号：US11161177B2
公开(公告)日：2021-11-02
申请号：US16158069
申请日：2018-10-11
Applicant: Arcam AB
Inventor： Ulric Ljungblad
IPC: B22F3/105 , B22F12/00 , G01N21/95 , B32B15/01 , C22C38/00 , B29C64/153 , B22F10/85 , B22F3/15 , C22C14/00 , C22C19/07 , C22C21/00 , B22F10/10
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.
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公开(公告)号：US10406599B2
公开(公告)日：2019-09-10
申请号：US15630154
申请日：2017-06-22
Applicant: Arcam AB
Inventor： Ulric Ljungblad , Martin Wildheim
IPC: B22F3/105 , B22F7/02 , B29C67/00 , B22F5/00 , B29C64/153 , B29C64/20 , B29C64/386 , B33Y10/00
Abstract: An apparatus for forming a three-dimensional article is provided, comprising means for providing a predetermined amount of powder, a powder distributor, means for directing an energy beam over a first powder layer causing it fuse in selected locations according to a model, a camera for capturing at least one image of a shape of at least one portion of the predetermined amount of powder that has yet to be initially distributed, the at least one image being captured prior to distribution of an entirety of all portions of the predetermined amount of powder over the surface, and means for comparing at least one value of at least one parameter in the image detected with a corresponding reference parameter value, wherein the at least one parameter is associated with the shape of the powder that has yet to be initially distributed.
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Patent Agency Ranking
公开(公告)号：US09718129B2
公开(公告)日：2017-08-01
申请号：US14443015
申请日：2013-11-18
Applicant: Arcam AB
Inventor： Ulric Ljungblad , Martin Wildheim
CPC classification number: B22F3/1055 , B22F5/00 , B22F7/02 , B22F2003/1056 , B29C64/153 , B29C64/20 , B29C64/386 , B29C67/0077 , B29C67/0085 , B29C67/0088 , B33Y10/00 , Y02P10/295
Abstract: A method for forming a three-dimensional article, said method comprising the steps of: providing a predetermined amount of powder for forming a first powder layer on a start plate, distributing said predetermined amount of powder with a powder distributor for forming said first powder layer, directing an energy beam over said start plate causing said first powder layer to fuse in selected locations according to a model to form a first cross section of said three-dimensional article. At least one image of the powder to be distributed is captured with a camera at least one time during said distribution of said powder on said start plate for forming said first powder layer and at least one value of at least one parameter in said image detected with said camera is compared with a reference parameter value.
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公开(公告)号：US09505172B2
公开(公告)日：2016-11-29
申请号：US14443016
申请日：2013-11-19
Applicant: Arcam AB
Inventor： Ulric Ljungblad
CPC classification number: B29C67/0077 , B22F3/1055 , B22F2003/1056 , B28B1/001 , B29C64/153 , B29C64/20 , B29C67/0085 , B33Y10/00 , B33Y30/00 , Y02P10/295
Abstract: The present invention relates to a method for forming a three-dimensional article through successive fusion of applied powder. Said method comprising the steps of: providing at least one powder hopper comprising powder to be used for forming said three-dimensional article, providing a predetermined amount of powder at a build support, directing an energy beam over said build support causing at least a portion of said powder to sinter and causing at least a portion of said powder to bond to said build support, directing an energy beam over said build support causing said powder to fuse in selected locations according to a model to form a first portion of said three-dimensional article, rotating said build support around an axis of rotation for creating said three-dimensional article, which three-dimensional article is build up layer by layer in a radial direction with respect to said axis of rotation.
Abstract translation: 本发明涉及一种通过连续熔融施用的粉末形成三维制品的方法。 所述方法包括以下步骤：提供至少一个粉末料斗，其包括用于形成所述三维制品的粉末，在构造支撑件处提供预定量的粉末，将能量束引导到所述构建支撑件上，形成至少一部分 的所述粉末烧结并使所述粉末的至少一部分结合到所述构建支撑件，将能量束引导到所述构建支撑件上，使得所述粉末根据模型在选定位置熔合以形成所述三维构件的第一部分， 围绕用于产生所述三维制品的旋转轴旋转所述构建支撑件，所述三维制品相对于所述旋转轴线在径向方向上逐层地建立。
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公开(公告)号：US20160303687A1
公开(公告)日：2016-10-20
申请号：US15190877
申请日：2016-06-23
Applicant: Arcam AB
Inventor： Ulric Ljungblad
CPC classification number: B23K26/342 , B22F3/004 , B22F3/1055 , B22F2003/1056 , B22F2003/1057 , B22F2998/00 , B22F2999/00 , B23K15/0013 , B23K15/0086 , B23K26/032 , B23K26/034 , B29C64/153 , B33Y30/00 , B33Y50/02 , Y02P10/295 , B22F7/04 , B22F2207/15
Abstract: The invention concerns a method for producing three-dimensional objects (6) layer by layer using a powdery material (7) which can be solidified by irradiating it with a high-energy beam (4), said method comprising the steps of: applying a first layer of powdery material onto a working area (5); solidifying a part of said first layer by irradiating it with a high-energy beam; and applying a second layer (8) of powdery material onto the first, partly solidified layer. The invention is characterized in that the method comprises the step of: determining a rate at which the temperature of the second layer (8) increases after application onto the first layer. The invention also concerns an apparatus configured to operate according to the above method.
Abstract translation: 本发明涉及一种使用粉末材料（7）逐层生产三维物体（6）的方法，其可以通过用高能束（4）照射而固化，所述方法包括以下步骤：施加 第一层粉状材料到工作区域（5）上; 通过用高能束照射来固化所述第一层的一部分; 以及将第二层（8）的粉末材料施加到所述第一部分固化的层上。 本发明的特征在于该方法包括以下步骤：确定施加到第一层上之后第二层（8）的温度升高的速率。 本发明还涉及一种被配置为根据上述方法操作的装置。
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公开(公告)号：US20150004045A1
公开(公告)日：2015-01-01
申请号：US14299887
申请日：2014-06-09
Applicant: Arcam AB
Inventor： Ulric Ljungblad
CPC classification number: B22F3/1035 , B22F3/003 , B22F3/1055 , B22F2003/1057 , Y02P10/295
Abstract: A method for forming a three-dimensional article comprising the steps of: applying a model of the three dimensional article, applying a first powder layer on a work table, directing a first electron beam from a first electron beam source over the work table causing the first powder layer to fuse in first selected locations according to the model to form a first cross section of the three-dimensional article, directing a second electron beam from a second electron beam source over the work table, registering at least one setting of the first electron beam source, registering at least one setting of the second electron beam source, correcting the position of the second electron beam depending on the at least one setting of the first electron beam source and the at least one setting of the second electron beam source.
Abstract translation: 一种用于形成三维制品的方法，包括以下步骤：施加三维制品的模型，在工作台上施加第一粉末层，将来自第一电子束源的第一电子束引导到工作台上， 第一粉末层，以根据模型在第一选定位置熔化，形成三维制品的第一横截面，将来自第二电子束源的第二电子束引导到工作台上，注册至少一个第一 电子束源，记录第二电子束源的至少一个设置，根据第一电子束源的至少一个设置和第二电子束源的至少一个设置校正第二电子束的位置。
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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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