公开(公告)号：WO2013167391A3

公开(公告)日：2014-01-03

申请号：PCT/EP2013058652

申请日：2013-04-25

Applicant: ARCAM AB

Inventor： SVENSSON MATTIAS ,  LJUNGBLAD ULRIC

IPC: H01J37/077 ,  B29C67/00

CPC classification number: H01J29/52 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  H01J37/077 ,  H01J37/305 ,  H01J37/3178 ,  H01J2237/043 ,  H01J2237/3128 ,  H01J2237/31732

Abstract: The present invention relates to a plasma electron source apparatus (150). The apparatus comprises a cathode discharge chamber (100) in which a plasma is generated, an exit hole (120) provided in the cathode discharge chamber from which electrons from the plasma (107) are extracted by an accelerating field provided between the cathode discharge chamber (100) and an anode (104), at least one plasma confinement device (e.g. an electromagnetic coil 103), and a switching mechanism (190) 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, in particular use of the apparatus (150) 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.

Abstract translation: 等离子体电子源装置技术领域本发明涉及等离子体电子源装置（150）。 该装置包括其中产生等离子体的阴极放电室（100），设置在阴极放电室中的出射孔（120），来自等离子体（107）的电子通过提供在阴极放电室 （100）和阳极（104），至少一个等离子体限制装置（例如电磁线圈103）和切换机构（190），用于将至少一个等离子体约束装置切换到允许从 等离子体和禁止从等离子体中提取电子的第二值。 还提供了相关方法，特别是使用装置（150），用于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。

公开(公告)号：DE602005016848D1

公开(公告)日：2009-11-05

申请号：DE602005016848

申请日：2005-05-11

Applicant: ARCAM AB

Inventor： WALLGREN GOERAN ,  ACKELID ULF ,  SVENSSON MATTIAS

IPC: B22F3/105 ,  B29C67/00

Abstract: Systems, apparatus, and methods feed and distribute a powder over a working area used for producing three-dimensional objects. A powder storage unit contains a supply of powder, and a distribution member is arranged to be moveable across the working area to distribute a portion of powder onto the working area. In an embodiment, the distribution member is, in a first step, moveable a predetermined distance into a supply of powder placed in the powder storage unit, said distance being sufficiently long to bring about a transfer of a portion of powder from the powder supply at one side of the distribution member to another side of the distribution member facing the working area, and the distribution member is, in a second step, moveable towards and across the working area to distribute the portion of powder onto the working area. Other embodiments are disclosed.

公开(公告)号：IN2229MUN2014A

公开(公告)日：2015-07-24

申请号：IN2229MUN2014

申请日：2014-11-05

Applicant: ARCAM AB

Inventor： SVENSSON MATTIAS ,  LJUNGBLAD ULRIC

IPC: H01J37/077 ,  B29C67/00

Abstract: The present invention relates to a plasma electron source apparatus (150). The apparatus comprises a cathode discharge chamber (100) in which a plasma is generated an exit hole (120) provided in the cathode discharge chamber from which electrons from the plasma (107) are extracted by an accelerating field provided between the cathode discharge chamber (100) and an anode (104) at least one plasma confinement device (e.g. an electromagnetic coil 103) and a switching mechanism (190) 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 in particular use of the apparatus (150) 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.

公开(公告)号：AT443587T

公开(公告)日：2009-10-15

申请号：AT05748734

申请日：2005-05-11

Applicant: ARCAM AB

Inventor： WALLGREN GOERAN ,  ACKELID ULF ,  SVENSSON MATTIAS

IPC: B22F3/105 ,  B29C67/00

Abstract: Systems, apparatus, and methods feed and distribute a powder over a working area used for producing three-dimensional objects. A powder storage unit contains a supply of powder, and a distribution member is arranged to be moveable across the working area to distribute a portion of powder onto the working area. In an embodiment, the distribution member is, in a first step, moveable a predetermined distance into a supply of powder placed in the powder storage unit, said distance being sufficiently long to bring about a transfer of a portion of powder from the powder supply at one side of the distribution member to another side of the distribution member facing the working area, and the distribution member is, in a second step, moveable towards and across the working area to distribute the portion of powder onto the working area. Other embodiments are disclosed.