公开(公告)号：US12005636B2

公开(公告)日：2024-06-11

申请号：US16759526

申请日：2018-10-30

申请人： IHI Corporation

发明人： Masato Yamada ,  Masashi Mouri ,  Yuki Kozue

IPC分类号： B29C64/153 ,  B22F10/28 ,  B22F10/37 ,  B22F10/38 ,  B22F10/85 ,  B22F12/13 ,  B22F12/17 ,  B22F12/40 ,  B22F12/90 ,  B23K15/00 ,  B33Y10/00 ,  B33Y30/00

CPC分类号： B29C64/153 ,  B22F10/28 ,  B22F10/37 ,  B22F10/38 ,  B22F10/85 ,  B22F12/13 ,  B22F12/17 ,  B22F12/40 ,  B22F12/90 ,  B23K15/0033 ,  B23K15/0086 ,  B33Y10/00 ,  B33Y30/00 ,  B22F2999/00 ,  B22F10/30 ,  B22F12/13 ,  B22F12/50 ,  B22F2203/11 ,  B22F2203/03

摘要： An additive manufacturing device performs manufacturing of an additively manufactured article by supplying a powder material to an irradiation region of an electron beam, laying and leveling the powder material, irradiating the powder material with the electron beam, and melting the powder material. The additive manufacturing device determines whether or not the powder material has scattered during manufacturing of the article. When it is determined that the powder material has scattered, an irradiation region R is heated by a heater before a new powder material is supplied to the irradiation region R. Manufacturing of the article is restarted after the new powder material has been supplied to the heated irradiation region.

公开(公告)号：US20240140027A1

公开(公告)日：2024-05-02

申请号：US18409963

申请日：2024-01-11

申请人： Concept Laser GmbH

发明人： Frank Herzog ,  Florian Bechmann ,  Fabian Zeulner

IPC分类号： B29C64/153 ,  B22F10/28 ,  B22F10/36 ,  B22F10/37 ,  B22F12/00 ,  B22F12/60 ,  B22F12/67 ,  B22F12/90 ,  B23K26/00 ,  B23K26/03 ,  B23K26/16 ,  B23K26/342 ,  B29C64/35 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

CPC分类号： B29C64/153 ,  B22F10/28 ,  B22F10/36 ,  B22F10/37 ,  B22F12/222 ,  B22F12/60 ,  B22F12/67 ,  B22F12/90 ,  B23K26/0093 ,  B23K26/032 ,  B23K26/16 ,  B23K26/342 ,  B29C64/35 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B22F12/49 ,  Y02P10/25

摘要： The invention relates to an apparatus (1) for the additive manufacturing of at least one three-dimensional object (2) by selectively compacting layer by layer at least one compactible building material (3) by means of at least one energy beam (5) generated by at least one radiation generating device (4), comprising at least one radiation generating device (4) for generating at least one energy beam (5) for compacting at least one compactible building material (3), at least one coating device (8) for carrying out at least one coating operation to apply a defined building material layer (9) of at least one compactible building material (3) to a building plane (10) or to a building material layer (9) of at least one compactible building material (3) that has previously been applied in the course of carrying out a previous coating operation, and also at least one recording device (11) for recording layer information describing, at least for certain portions, the quality, in particular of the surface, of a building material layer (9) applied by means of the coating device (8) in the course of carrying out a coating operation, wherein the at least one recording device (11) is designed to record corresponding layer information during a coating operation carried out by means of the coating device (8).

公开(公告)号：US20240066600A1

公开(公告)日：2024-02-29

申请号：US18263710

申请日：2022-03-22

申请人： LAEMPE MOESSNER SINTO GMBH

发明人： JANOSCH MUENZER ,  FRANK WEDEMEYER ,  RUDOLF WINTGENS

IPC分类号： B22F10/37 ,  B22F10/28 ,  B22F12/52 ,  B22F12/90 ,  B29C64/153 ,  B29C64/329 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02

CPC分类号： B22F10/37 ,  B22F10/28 ,  B22F12/52 ,  B22F12/90 ,  B29C64/153 ,  B29C64/329 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02

摘要： A method for discharging particulate building material in a 3D printer to be applied more evenly. A building material curtain of particulate building material and/or an accumulation of building material is optically monitored in a work step of discharging the particulate building material in an area of the building material curtain between the applicator and the construction site and/or a point of impact of the particulate building material on the construction site at which the building material accumulation is created. An image is generated and/or at least one dimension is determined to be compared with an associated reference image and/or a specified reference value. If any deviation is detected, at least one discharge parameter for the discharge of the particulate construction materials is changed.

公开(公告)号：US11858038B2

公开(公告)日：2024-01-02

申请号：US16608762

申请日：2018-03-02

申请人： SKZ-KFE gGmbH

发明人： Christian Fischer ,  Christian Staudigel

IPC分类号： B22F1/103 ,  B22F10/10 ,  B33Y10/00 ,  B22F1/10 ,  B33Y70/00 ,  B33Y80/00 ,  B22F10/60 ,  B22F10/37 ,  B22F10/34 ,  B22F10/16 ,  B22F10/38

CPC分类号： B22F1/10 ,  B22F1/103 ,  B22F10/10 ,  B22F10/16 ,  B22F10/34 ,  B22F10/37 ,  B22F10/38 ,  B22F10/60 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y10/00

摘要： A process for the additive manufacture of a metallic and/or vitreous and/or ceramic component, a mixture of substrate particles and an at least two-phase binder is firstly provided. The mixture is preferably provided as composite particles, so that the substrate particles adhere to one another by the at least two-phase binder. The mixture is selectively melted layerwise by electromagnetic radiation so that a shaped part is additively produced. The shaped part is taken out from the mixture which has not been melted and the at least two-phase binder is subsequently removed, preferably successively. The process produces a microporous shaped part which after sintering leads to a component having a desired density and a desired mechanical and/or thermal stability.

公开(公告)号：US11701820B2

公开(公告)日：2023-07-18

申请号：US17488711

申请日：2021-09-29

申请人： Delavan Inc.

发明人： Diana Giulietti ,  David W. Morganson

IPC分类号： B29C64/153 ,  B29C64/188 ,  B05C11/02 ,  B29C64/205 ,  B29C64/214 ,  B33Y10/00 ,  B22F10/28 ,  B22F12/60 ,  B22F12/67 ,  B22F10/73 ,  B22F12/70 ,  B22F10/32 ,  B22F10/37

CPC分类号： B29C64/153 ,  B05C11/023 ,  B22F10/28 ,  B22F12/60 ,  B22F12/67 ,  B29C64/188 ,  B29C64/205 ,  B29C64/214 ,  B33Y10/00 ,  B22F10/32 ,  B22F10/37 ,  B22F10/73 ,  B22F12/70

摘要： An additive manufacturing device includes a recoater configured to push powder onto a build platform. The recoater defines an advancing direction for pushing powder. A first baffle is mounted to a first end of a leading edge of the recoater and a second baffle mounted to a second end of the leading edge of the recoater opposite the first end. Each of the first and second baffles includes a base mounted to the recoater, a first wall that extends obliquely ahead of and laterally outward from the base relative to the advancing direction, and a second wall opposite the first wall. The second wall extends obliquely ahead of and laterally inward from the base relative to the advancing direction. A volume is defined between the first and second wall with capacity to collect powder as the recoater advances.

公开(公告)号：US20220355381A1

公开(公告)日：2022-11-10

申请号：US17525718

申请日：2021-11-12

申请人： Desktop Metal, Inc.

发明人： George Hudelson ,  Alexander C Barbati

IPC分类号： B22F10/37 ,  B22F12/63 ,  B33Y10/00 ,  B33Y30/00

摘要： A method of conditioning layers of build material powder for metal additive manufacturing including depositing an amount of build material powder on a work surface, the amount of build material powder having a lower surface separated from an upper surface by a height. A roller is traversed across the work surface in a first direction while rotating the roller in a direction opposed to the first direction. During the step of traversing the roller, a lower surface of the roller extends below the upper surface of the amount of build material powder by a distance. The roller has a surface conditioning configured to, in conjunction with a controlled speed of the rotation of the roller, provide a powder density in a compacted layer within a predetermined powder density range.

公开(公告)号：US20220288696A1

公开(公告)日：2022-09-15

申请号：US17690314

申请日：2022-03-09

申请人： JEOL Ltd.

发明人： Taku Hisaki ,  Shinichi Kitamura ,  Takashi Sato ,  Ayumu Miyakita ,  Kozo Koiwa ,  Yohei Daino ,  Masahiko Kawakami ,  Nari Tsutagawa

IPC分类号： B22F12/90 ,  B22F10/28 ,  B22F10/37 ,  B22F12/30 ,  B22F12/13 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

摘要： A three-dimensional powder bed fusion additive manufacturing apparatus includes a determination unit that determines presence or absence of powder scattering in a second preheating step using at least a third image that is an image of a powder layer photographed by a camera after the second preheating step among a first image that is an image of the powder layer photographed by the camera after a first preheating step, a second image that is an image of the powder layer photographed by the camera after the powder application step, and the third image.

公开(公告)号：US20220032377A1

公开(公告)日：2022-02-03

申请号：US17370845

申请日：2021-07-08

申请人： Desktop Metal, Inc.

发明人： George Hudelson ,  Paul A. Hoisington ,  Richard Remo Fontana ,  Emanuel Michael Sachs ,  Christopher Anthony Craven ,  Matthew McCambridge

IPC分类号： B22F10/37 ,  B22F10/14 ,  B22F10/50 ,  B22F10/85 ,  B22F12/53 ,  B22F12/52 ,  B22F12/63 ,  B22F12/90 ,  B22F12/13 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y50/02 ,  B33Y30/00

摘要： Systems and methods are disclosed for forming a three-dimensional object using additive manufacturing. One method includes depositing a first amount of powder material onto a powder print bed of a printing system, spreading the first amount of powder material across the powder print bed to form a first layer, measuring a density of powder material within the powder print bed, and adjusting a parameter of the printing system based on the measured density of the powder material within the powder print bed.

公开(公告)号：US20210154741A1

公开(公告)日：2021-05-27

申请号：US17013916

申请日：2020-09-08

申请人： JEOL Ltd.

发明人： Shinichi Kitamura ,  Nari Tsutagawa ,  Hironobu Manabe

IPC分类号： B22F10/364 ,  B22F10/85 ,  B22F10/37

摘要： In a squeegeeing step of the three-dimensional powder bed fusion additive manufacturing (PBF-AM) method, a powder sample is supplied onto a base plate to stack powder layers. In a main melting step, a powder bed which is a top layer of the powder layers is irradiated with an electron beam to melt a two-dimensional shape area, which is a single layer obtained by slicing a shaping model. In a shaping surface checking step, a backscattered electron that is generated when the melted area is irradiated with the electron beam is detected and, based on the backscattered electron, it is determined whether the melting state is normal or not. When it is determined in the shaping surface checking step that the melting state is not normal, a re-melting step is performed to re-irradiate the area melted in the main melting step with an electron beam generated by the beam generation unit.

公开(公告)号：US12065716B2

公开(公告)日：2024-08-20

申请号：US17320831

申请日：2021-05-14

申请人： NUOVO PIGNONE TECNOLOGIE—S.r.l.

发明人： Antonella Dimatteo

IPC分类号： C22C1/04 ,  B22F10/28 ,  B22F10/36 ,  B22F10/366 ,  B22F10/37 ,  B22F12/41 ,  B23K26/34 ,  B23K26/342 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C19/05 ,  B23K26/082 ,  B23K101/00

CPC分类号： C22C1/0433 ,  B22F10/28 ,  B22F10/36 ,  B22F10/366 ,  B22F10/37 ,  B22F12/41 ,  B23K26/342 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C19/055 ,  B22F2301/15 ,  B23K26/082 ,  B23K2101/001

摘要： Method for the additive production of three-dimensional articles is disclosed. A powder layer of nickel-based metal alloy having a specific composition is scanned with an energy source so as to melt the powder in at least one point of the layer. Afterwards the energy source is removed from this point so as to solidify the metal alloy and form a layer with a desired shape. Also disclosed are articles obtainable by this method.