公开(公告)号：WO2022268245A1

公开(公告)日：2022-12-29

申请号：PCT/DE2022/000069

申请日：2022-06-21

Applicant: VOXELJET AG

Inventor： HEYMEL, Bastian ,  SINZINGER, Martin

IPC: B29C64/214 ,  B29C64/321 ,  B29C64/343 ,  B33Y30/00 ,  B22F10/00 ,  B22F12/52 ,  B22F12/67 ,  B22F2999/00

Abstract: Die Erfindung bezieht sich auf ein Verfahren und eine Vorrichtung zum Herstellen dreidimensionaler Modelle mittels Schichtaufbautechnik mittels einer Keilklinge.

公开(公告)号：WO2021071745A1

公开(公告)日：2021-04-15

申请号：PCT/US2020/053868

申请日：2020-10-01

Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

Inventor： KHAIRALLAH, Saad A ,  GUSS, Gabe ,  HERBOLD, Eric B. ,  KING, Wayne E. ,  MATTHEWS, Manyalibo J. ,  RUBENCHIK, Alexander M. ,  WALTON, Otis R.

IPC: B22F10/28 ,  B22F12/67 ,  B22F10/73 ,  B33Y10/00 ,  B33Y30/00

Abstract: A laser powder bed fusion additive manufacturing system having a powder dispenser that provides powder layers on a build platform; a laser fusion system that fuses the powder layers, wherein spatter particles are produce on the powder layers; and a powder bed sweeping system that sweeps the spatter particles from the powder layers. The powder bed sweeping system includes a brush that has bristles that contact the spatter particles and sweeps the spatter particles from the powder layers.

公开(公告)号：WO2023089173A1

公开(公告)日：2023-05-25

申请号：PCT/EP2022/082606

申请日：2022-11-21

Applicant: SIEMENS ENERGY GLOBAL GMBH & CO. KG

Inventor： AVDOVIC, Pajazit ,  ERIKSSON, Jonas ,  FORNANDER, Jerry

IPC: B22F10/28 ,  B22F10/37 ,  B22F10/85 ,  B22F12/52 ,  B22F12/67 ,  B22F12/90 ,  B29C64/205 ,  B29C64/329 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/153

Abstract: The present invention refers to a method of 3D printing to manufacture a product, wherein the method of distributing the powder material for a powder bed utilized in the 3D printing process is improved. Furthermore, the present invention refers to a powder feeder utilized to distribute the powder material. Additionally, the present invention refers to a 3D printing device being adapted to be utilized in an inventive method.

公开(公告)号：WO2021255367A1

公开(公告)日：2021-12-23

申请号：PCT/FR2021/051038

申请日：2021-06-09

Applicant: SAFRAN

Inventor： COURAPIED, Damien, Jonathan, Julien ,  CORNU, Daniel, André, Jean ,  GIRAUD, Rémi, Robert

IPC: B22F3/105 ,  B29C64/153 ,  B29C64/214 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/28 ,  B22F10/31 ,  B22F10/85 ,  B22F12/67 ,  B22F12/90 ,  B22F10/37

Abstract: Dispositif (100) de fabrication d'une pièce par un procédé de fusion sélective ou frittage sélectif sur lit de poudre (103) comprenant un plateau de fabrication (101) ayant une surface de travail (102), parallèle à une première direction (X) et à une deuxième direction (Y), sur laquelle la pièce est destinée à être fabriquée, un racleur (110) placé sur la surface de travail et apte à se déplacer et à étaler la poudre selon la première direction sur la surface de travail, caractérisé en ce qu'il comprend en outre : - au moins deux capteurs acoustiques (121, 122) fixés et espacés selon la deuxième direction sur le racleur et aptes à détecter un signal acoustique; - un télémètre laser (130) orienté selon la première direction et apte à déterminer une position du racleur selon la première direction; et - un système de contrôle (140) apte à détecter une anomalie (150) en fonction dudit signal acoustique et à déterminer une position de l'anomalie en fonction du signal acoustique détecté par lesdits capteurs acoustiques et d'un signal de position mesuré par ledit télémètre laser.

公开(公告)号：WO2022233653A1

公开(公告)日：2022-11-10

申请号：PCT/EP2022/061131

申请日：2022-04-27

Applicant: SLM SOLUTIONS GROUP AG

Inventor： WILKES, Jan

IPC: B22F10/28 ,  B22F10/322 ,  B22F10/366 ,  B22F12/67 ,  B22F12/70 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/214 ,  B29C64/393 ,  B29C64/371 ,  B33Y30/00

Abstract: We describe a method for controlling an irradiation beam for irradiating a layer of raw material powder in an additive layer manufacturing process for producing a three-dimensional work piece, wherein the method comprises: depositing, with a layer depositing mechanism, a said layer of raw material powder on top of a carrier and/or on top of a preceding material layer on top of the carrier; and controlling the irradiation beam to irradiate at least a portion of the layer of raw material powder in an irradiation area when a distance between the irradiation area and the layer depositing mechanism is above a threshold distance, and wherein the threshold distance is dependent on (i) a speed of movement of the layer depositing mechanism, and (ii) a speed, vg, of a gas flow over the layer of raw material powder.

公开(公告)号：WO2022205655A1

公开(公告)日：2022-10-06

申请号：PCT/CN2021/104373

申请日：2021-07-02

Applicant: 广东汉邦激光科技有限公司

Inventor： 刘建业 ,  高文华 ,  徐卡里 ,  牛留辉 ,  胡高峰

IPC: B22F12/00 ,  B22F12/67 ,  B22F12/70 ,  B22F10/28 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B23K26/142

Abstract: 一种金属3D打印装置（100），包括成型台（100a）、第一铺粉臂（10）、第二铺粉臂（20）、风场机构（30）及扫描机构（40）；成型台（100a）用于承载粉末，第一铺粉臂（10）及第二铺粉臂（20）间隔设置，并能够沿平行于成型台（100a）移动以分别向成型台（100a）铺粉；风场机构（30）包括吹风口（31）及收风口（32），吹风口（31）设于第一铺粉臂（10）并向成型台（100a）吹气，收风口（32）设于第二铺粉臂（20）并吸气；扫描机构（40）用于向第一铺粉臂（10）与第二铺粉臂（20）之间的粉末发射激光，以使粉末固化形成制件。该金属3D打印装置（100）实现了铺粉的同时打印的目的，进而提升了打印效率。还涉及一种金属3D打印方法，同样能够实现连续铺粉并连续打印的目的，进而提升了打印效率。

公开(公告)号：WO2022133515A1

公开(公告)日：2022-06-30

申请号：PCT/AU2021/051478

申请日：2021-12-10

Applicant: AMPRO INNOVATIONS PTY LTD

Inventor： MARTINICH, Jack

IPC: B22F10/28 ,  B22F10/322 ,  B22F12/00 ,  B22F12/52 ,  B22F12/57 ,  B22F12/67 ,  B33Y40/00

Abstract: A powder re-coater apparatus for depositing powder layers in an AM installation includes an elongate, horizontally disposed recoating device mounted for sideways or lateral movement above a deposition surface of the installation under the action of a drive system. The recoating device has a housing defining an elongate chamber for holding powder, a dispensing opening along a base of the housing, and a metering member extending within the chamber, along the opening and operable to provide a controlled flow of powder through the opening during lateral movement of the recoating device to deposit a coating over the deposition surface. The apparatus further includes an elongate powder spreader device parallel to the recoating device and mounted for sideways or lateral movement closely juxtaposed to the surface. The spreader device is operable to spread powder from regions of excess thickness in a coating to ensure each coating is of uniform thickness.

公开(公告)号：WO2022051222A1

公开(公告)日：2022-03-10

申请号：PCT/US2021/048217

申请日：2021-08-30

Applicant: VULCANFORMS INC.

Inventor： SWEETLAND, Matthew

IPC: B29C67/00 ,  B33Y30/00 ,  B22F10/28 ,  B22F12/67 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/214 ,  B29C64/218 ,  B29C64/232 ,  B29C64/236 ,  B29C64/286 ,  B29C64/35 ,  B29C64/364 ,  B33Y10/00 ,  B33Y40/00

Abstract: Disclosed embodiments relate to recoater systems for use with additive manufacturing systems. A recoater assembly may be used to deposit a material layer onto a build surface of an additive manufacturing system. In some instances, the recoater assembly may include a powder entrainment system that trails behind a recoater blade of the recoater assembly relative to a direction of motion of the recoater blade across a build surface of the additive manufacturing system. The powder entrainment system may generate a flow of fluid across a portion of the build surface behind the recoater blade that at least temporarily entrains powder above a threshold height from the build surface to mitigate, or prevent, the formation of defects on the build surface with heights greater than the threshold height.

公开(公告)号：WO2021110507A1

公开(公告)日：2021-06-10

申请号：PCT/EP2020/083350

申请日：2020-11-25

Applicant: SANDVIK MACHINING SOLUTIONS AB

Inventor： BOSTRÖM, Magnus ,  VIKLUND, Per

IPC: B29C64/153 ,  B29C64/205 ,  B29C64/386 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02 ,  B22F3/00 ,  B33Y40/00 ,  B22F12/63 ,  B22F10/85 ,  B22F12/60 ,  B22F12/67 ,  B22F12/90

Abstract: The present invention relates to a leveling assembly (100) for an additive manufacturing apparatus, wherein the leveling assembly comprises: a leveling device (101,201) for leveling a powder bed (103) of a build chamber (104) of the additive manufacturing apparatus; a frame (105) operatively connected to said leveling device and configured to traverse the powder bed with the leveling device, wherein the frame comprises: a drive (106) configured to move the frame (105) and the leveling device (101) over the powder bed (103); and wherein the frame is characterized by comprising: a force sensor (107) configured to sense a force acting on the leveling device, said force depending on the force with which the leveling device acts on the powder bed.

公开(公告)号：WO2022212203A1

公开(公告)日：2022-10-06

申请号：PCT/US2022/021947

申请日：2022-03-25

Applicant: BATTELLE SAVANNAH RIVER ALLIANCE, LLC

Inventor： LUO, Yuefeng

IPC: B29C64/153 ,  B29C64/245 ,  B29C64/295 ,  B33Y10/00 ,  B33Y30/00 ,  B22F10/28 ,  B22F12/37 ,  B22F12/41 ,  B22F12/67

Abstract: Additive manufacturing systems and methods are provided. An additive manufacturing system includes a build volume; a powder disposed in the build volume, the powder occupying at least a portion of the build volume and having an outer boundary; a beam generator configured to generate a beam to irradiate the powder; and a ram defining a passthrough configured to transmit the beam to an irradiation location disposed within the outer boundary of the powder.