公开(公告)号：BR112013009155A2

公开(公告)日：2016-07-26

申请号：BR112013009155

申请日：2011-01-28

Applicant: ARCAM AB

Inventor： SNIS ANDERS

IPC: B22F3/105 ,  B29C67/00

Abstract: método para produção de um corpo tridimensional. a invenção diz respeito a um método para produção de um corpo tridimensional por meio do provimento sucessivo de camadas de pó e fusão conjunta de áreas selecionadas das referidas camadas, cujas áreas correspondem a seções transversais sucessivas do corpo tridimensional, em que o método compreende as seguintes etapas para pelo menos uma das referidas camadas: aplicar a pelo menos uma camada de pó numa área de trabalho e fundir conjuntamente uma área selecionada da pelo menos uma camada de pó por meio do fornecimento de energia a partir de uma pistola de radiação à área selecionada. a invenção é caracterizada pelo fato de que compreende as etapas de: estabelecer um percurso de feixe pretendido a ser usado quando da fusão conjunta da área selecionada da pelo menos uma camada de pó, calcular uma temperatura na pelo menos uma camada de pó ao longo do percurso de feixe pretendido como uma função de uma deposiçãoespecífica de energia de um feixe imaginário, o qual se presume mover ao longo do percurso de feixe pretendido, ajustar a deposição específica de energia do feixe imaginário ao longo do percurso de feixe pretendido dependendo da temperatura calculada e do conjunto de condições para a etapa de fusão conjunta da área selecionada, e prover, com base nos cálculos e nos ajustes, um esquema de operação para a deposição específica de energia do feixe real a ser usado para o percurso de feixe pretendido quando da fusão conjunta da área selecionada da pelo menos uma camada.

公开(公告)号：WO2015032590A3

公开(公告)日：2015-05-07

申请号：PCT/EP2014067095

申请日：2014-08-08

Applicant: ARCAM AB

Inventor： NORDKVIST JOHAN ,  ACKELID ULF ,  SNIS ANDERS

IPC: B22F1/00 ,  B22F3/105 ,  B28B1/00 ,  B29C67/00

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。

公开(公告)号：EP2667987A4

公开(公告)日：2017-11-08

申请号：EP11857319

申请日：2011-01-28

Applicant: ARCAM AB

Inventor： SNIS ANDERS

IPC: B29C64/393 ,  B22F3/105 ,  B33Y50/02

CPC classification number: B29C67/0077 ,  B22F3/1055 ,  B22F2003/1057 ,  B29C41/003 ,  B29C41/52 ,  B29C64/153 ,  B29C64/386 ,  B29C64/393 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y50/02 ,  G05D23/00 ,  G06F19/00 ,  Y02P10/295

Abstract: The invention concerns a method for production of a three-dimensional body by successively providing powder layers and fusing together of selected areas of said layers, which areas correspond to successive cross sections of the three-dimensional body, wherein the method comprises the following steps for at least one of said layers: applying the at least one powder layer onto a working area, and fusing together a selected area of the at least one powder layer by supplying energy from a radiation gun to the selected area. The invention is characterized in that it comprises the steps of: establishing an intended beam path that is to be used when fusing together the selected area of the at least one powder layer, calculating a temperature in the at least one powder layer along the intended beam path as a function of a specific energy deposition of an imaginary beam that is assumed to move along the intended beam path, adjusting the specific energy deposition of the imaginary beam along the intended beam path depending on the calculated temperature and on conditions set for the step of fusing together the selected area, and providing, based on the calculations and the adjustments, an operating scheme for the specific energy deposition of the real beam to be used for the intended beam path when fusing together the selected area of the at least one layer.

公开(公告)号：EP2231352A4

公开(公告)日：2013-03-27

申请号：EP08705182

申请日：2008-01-03

Applicant: ARCAM AB

Inventor： JONASSON DANIEL ,  LARSSON MORGAN ,  ACKELID ULF ,  SNIS ANDERS ,  LOCK TOMAS

IPC: B22F3/105 ,  B29C67/00

CPC classification number: B29C64/20 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/386 ,  B29C64/393 ,  B29C67/0085 ,  B29L2009/00 ,  B33Y30/00 ,  Y02P10/295 ,  B22F2203/03

Abstract: The invention concerns a method for producing three-dimensional objects (6) layer by layer using a powdery material which can be solidified by irradiating it with a beam (4) of charged particles, which method comprises the following steps: successive application of powder layers to a working area (5), and fusing together successive layers of said three-dimensional object (6) by successively irradiating the powdery layers with said beam (4). The invention is characterized in that it comprises the following steps: determining whether lifting of powdery material from the working area (5) occurs using a powder-lifting detection device (10, 10a, 10b, 10c, 1Od, 1Oe) capable of generating a signal (S) upon detection of lifting of powdery material from the working area (5), and interrupting the irradiation of at least a part of the working area (5) where powder lifting occurs using the signal (S) generated by the powder-lifting detection device (10, 10a, 10b, 10c, 10d, 1Oe) for automatically trigging the interruption. The invention also concerns an apparatus (1) for producing three-dimensional objects (6) layer by layer using a powdery material which can be solidified by irradiating it with a beam (4) of charged particles, said apparatus (1) comprising means for successive application of powder layers to a work table, and a radiation gun (3) for delivering said beam (4) of charged particles, wherein the inventive apparatus (1) comprises a powder-lifting detection device (10, 10a, 10b, 10c, 10d, 10e) capable of generating a signal (S) upon detection of lifting of powdery material from the working area (5).

公开(公告)号：EP2049289A4

公开(公告)日：2012-07-04

申请号：EP06758093

申请日：2006-07-27

Applicant: ARCAM AB

Inventor： LARSSON MORGAN ,  SNIS ANDERS

IPC: B22F3/105 ,  B29C67/00

CPC classification number: B22F3/1055 ,  B22F2999/00 ,  B29C64/153 ,  Y02P10/295 ,  B22F3/1017