公开(公告)号：US08570534B1

公开(公告)日：2013-10-29

申请号：US13763172

申请日：2013-02-08

Applicant: ARCAM AB

Inventor： Lars Loewgren

IPC: G01B11/14

CPC classification number: G01B11/14 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1059 ,  B29C64/20 ,  B33Y40/00 ,  Y02P10/24 ,  Y02P10/295

Abstract: A method for providing safety protection in an additive manufacturing apparatus for forming a three-dimensional article through successive fusion of parts of a powder bed in an enclosable chamber, which parts corresponds to successive cross sections of the three-dimensional article is provided. The method comprising the steps of providing a position detecting device connected to a control unit to detect whether a foreign matter is within the enclosable chamber. The method may also include, upon detecting that the foreign matter is within the enclosable chamber, either (1) switching off, via the control unit, at least one device associated with the additive manufacturing apparatus; or (2) providing power to a powder suction device. Associated safety protection devices are also provided.

Abstract translation: 提供了一种用于在添加剂制造装置中提供安全保护的方法，该添加剂制造装置通过在可封闭室中连续熔融粉末床的部分形成三维制品，该部分对应于三维制品的连续横截面。 该方法包括以下步骤：提供连接到控制单元的位置检测装置，以检测异物是否在可封闭室内。 该方法还可以包括在检测到异物在可封闭室内时，（1）经由控制单元关闭与添加剂制造设备相关联的至少一个设备; 或（2）向粉末抽吸装置提供动力。 还提供了相关的安全保护装置。

公开(公告)号：US20130278920A1

公开(公告)日：2013-10-24

申请号：US13763172

申请日：2013-02-08

Applicant: ARCAM AB

Inventor： Lars Loewgren

IPC: G01B11/14

CPC classification number: G01B11/14 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1059 ,  B29C64/20 ,  B33Y40/00 ,  Y02P10/24 ,  Y02P10/295

Abstract: A method for providing safety protection in an additive manufacturing apparatus for forming a three-dimensional article through successive fusion of parts of a powder bed in an enclosable chamber, which parts corresponds to successive cross sections of the three-dimensional article is provided. The method comprising the steps of providing a position detecting device connected to a control unit to detect whether a foreign matter is within the enclosable chamber. The method may also include, upon detecting that the foreign matter is within the enclosable chamber, either (1) switching off, via the control unit, at least one device associated with the additive manufacturing apparatus; or (2) providing power to a powder suction device. Associated safety protection devices are also provided.

Abstract translation: 提供了一种用于在添加剂制造装置中提供安全保护的方法，该添加剂制造装置通过在可封闭室中连续熔融粉末床的部分形成三维制品，该部分对应于三维制品的连续横截面。 该方法包括以下步骤：提供连接到控制单元的位置检测装置，以检测异物是否在可封闭室内。 该方法还可以包括在检测到异物在可封闭室内时，（1）经由控制单元关闭与添加剂制造设备相关联的至少一个设备; 或（2）向粉末抽吸装置提供动力。 还提供了相关的安全保护装置。

公开(公告)号：US09676031B2

公开(公告)日：2017-06-13

申请号：US14230957

申请日：2014-03-31

Applicant: Arcam AB

Inventor： Ulric Ljungblad ,  Lars Loewgren ,  Anders Snis ,  Mattias Fager

IPC: B22F3/105 ,  B29C67/00 ,  B23K15/00 ,  B22F3/12

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.

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：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

IPC: B22F3/105 ,  B23K15/00 ,  B22F3/12 ,  B29C67/00

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。