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31.发明申请
公开(公告)号：WO2021260287A1
公开(公告)日：2021-12-30
申请号：PCT/FR2021/051047
申请日：2021-06-11
IPC分类号： B29C64/153 , B22F10/28 , B22F10/37 , B22F10/47 , B22F10/60 , B29C64/245 , B29C64/30 , B29C64/379 , B29C64/40 , B33Y10/00 , B33Y30/00 , B33Y40/20 , B22F10/68 , B22F12/30
摘要： L'invention concerne un plateau modulaire circulaire pour la fabrication additive sur lit de poudre d'une pièce à axe de révolution, caractérisé en ce qu'il se compose d'un assemblage de modules qui sont accouplés de manière concentrique selon un axe et 5 contiguë selon une direction radiale, les modules comprenant un module périphérique annulaire (3) et un module central circulaire (2).
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32.发明申请
公开(公告)号：WO2021244875A1
公开(公告)日：2021-12-09
申请号：PCT/EP2021/063621
申请日：2021-05-21
发明人： PAFFRATH, Meinhard
IPC分类号： B22F3/105 , B29C64/153 , B29C64/35 , B29C64/393 , B33Y40/20 , B33Y50/02 , B22F10/68 , B22F10/10 , B22F10/28 , B22F2999/00
摘要： Zum Separieren überschüssigen Werkstoffs (WS) von einem additiv hergestellten Bauteil (BT), werden räumlich aufgelöste Strukturdaten (CAD) des Bauteils (BT) empfangen. Anhand der Strukturdaten (CAD) wird ein Hohlraum (H) des Bauteils (BT) durch ein virtuelles räumliches Gitter (G) in Gitterzellen (GZ) eingeteilt, wobei eine räumliche Ausrichtung des Gitters (G) relativ zum Bauteil (BT) durch eine Ausrichtungsangabe (RA) spezifiziert wird. Anhand der Ausrichtungsangabe (RA) wird ein diskretes Raster (R) von räumlichen Orientierungen des Bauteils (BT) ermittelt. Weiterhin werden die Gitterzellen (GZ) des Hohlraums (H) simulativ mit virtuellem Werkstoff (VWP) gefüllt. Anhand der Strukturdaten (CAD) wird dann ein Ausschüttvorgang des virtuellen Werkstoffs (VWP) aus dem Bauteil (BT) für auf das diskrete Raster (R) beschränkte räumliche Orientierungen simuliert, wobei eine zeitliche Abfolge von auf das diskrete Raster (R) beschränkten Orientierungen (AP(1),...,AP(N)) ermittelt wird. Abhängig vom simulierten Ausschüttvorgang wird das Bauteil (BT) dann sukzessive in die Orientierungen (AP(1),...,AP(N)) der zeitlichen Abfolge rotiert.
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公开(公告)号：WO2021221624A1
公开(公告)日：2021-11-04
申请号：PCT/US2020/030386
申请日：2020-04-29
IPC分类号： B29C64/165 , B33Y70/00 , B33Y40/20
摘要： The present disclosure relates to fusing agents for 3D printing. The fusing agents comprise: a hydroxyphenyl benzotriazole, surfactant and water. The present disclosure also relates to 3D printing kits. The kits may comprise powder bed material, and fusing agent. The present disclosure also relates to methods for printing a 3D printed object. The methods may comprise selectively applying fusing agent to powder bed material, and irradiating the selectively applied fusing agent with UV radiation to fuse at least a portion of the powder bed material.
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35.发明申请
公开(公告)号：WO2021202655A1
公开(公告)日：2021-10-07
申请号：PCT/US2021/025076
申请日：2021-03-31
申请人： CARBON, INC.
IPC分类号： C08G18/32 , B33Y10/00 , C08G18/50 , C08G18/66 , C08G18/73 , C08G18/75 , C08L75/16 , B33Y40/20 , B33Y70/00 , B33Y80/00 , C08G18/3234 , C08G18/5024 , C08G18/6685 , C08G18/755
摘要： Provided herein according to some embodiments is a polymerizable liquid useful for the production of an energy absorbing three-dimensional object comprising polyurethane, polyurea, or a copolymer thereof by additive manufacturing. The polymerizable liquid may include components having soft segments (e.g., polyol/polyamine midblocks, chain extenders) of different number average molecular weights.
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公开(公告)号：WO2021121999A1
公开(公告)日：2021-06-24
申请号：PCT/EP2020/084262
申请日：2020-12-02
申请人： BASF SE
IPC分类号： B29C64/118 , B29C64/245 , B29C64/40 , B28B1/00 , C04B35/634 , D01F1/10 , D01F8/04 , B29C64/106 , B33Y40/20 , B33Y70/10 , C04B2235/5264 , C04B2235/5436 , C04B2235/6021 , C04B2235/6026 , C04B35/62844 , C04B35/63488 , C04B35/638 , D01F6/66
摘要： The present invention relates to a process for the production of a three-dimensional green body (GB) by a three-dimensional (3D) printing process, in which at least one feedstock, a built chamber and a three-dimensional extrusion printer (3D printer) containing at least one nozzle are employed. In this process, the at least one feedstock is fed into the 3D printer containing the at least one nozzle, wherein the at least one feedstock comprises at least one binder (B) and at least one inorganic powder (IP), and wherein the at least one binder (B) comprises at least one polyoxymethylene (POM). The at least one feedstock is then heated inside the 3D printer and extruded through the at least one nozzle in order to obtain at least one extruded strand. From the at least one extruded strand, the three-dimensional green body (GB) is formed layer by layer on a base plate (BP) located in the build chamber, wherein the base plate (BP) comprises the at least one binder (B) and optionally the at least one inorganic powder (IP). The three-dimensional green body (GB) and the base plate (BP) are removed from the build chamber, wherein the three-dimensional green body (GB) is attached to the base plate (BP). The present invention further relates to a three-dimensional green body (GB) prepared by this process and to a three-dimensional sintered body prepared from the three-dimensional green body (GB).
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公开(公告)号：WO2021080557A1
公开(公告)日：2021-04-29
申请号：PCT/US2019/057231
申请日：2019-10-21
IPC分类号： B29C64/393 , B33Y40/20 , B29C64/379 , B33Y50/02
摘要： A computer-implemented method is disclosed. The computer-implemented method comprises receiving data indicative of a post-manufacture treatment to be applied to a three-dimensional object following completion of a manufacturing process to generate the three-dimensional object; and determining, based on the received data indicative of the post-manufacture treatment, build parameters to be applied in respect of the manufacturing process. A manufacturing apparatus and a machine-readable medium are also disclosed.
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公开(公告)号：WO2021071477A1
公开(公告)日：2021-04-15
申请号：PCT/US2019/055313
申请日：2019-10-09
IPC分类号： B29C64/379 , B33Y40/20
摘要： According to one example, there is provided apparatus for restraining objects during a powder and object separation process. The apparatus comprises a base plate comprising a set of spatially arranged apertures, a set of rods, each rod slidable within a corresponding aperture of the base plate. The base plate is to connect with a chamber to contain a volume of powder and objects to be separated and the apparatus is configured such that, when the apparatus is connected to a chamber containing a volume of powder and 3D objects the set of rods are positionable in, or are slideable into, a position extending vertically away from the chamber, and as powder is removed from under each rod, the rods are to slide through the apertures.
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公开(公告)号：WO2021046376A1
公开(公告)日：2021-03-11
申请号：PCT/US2020/049444
申请日：2020-09-04
申请人： CARBON, INC.
摘要： An additively manufactured cushion includes an array of interconnected surface lattice unit cells. The surface lattice unit cells are comprised of a unit cell surface portion configured as a Schoen F-RD minimal surface unit cell, anhd the unit cell surface portion is comprised of a rigid, flexible, or elastic polymer. In some embodiments, the surface lattice unit cells have an average width of from 1 to 100 millimeters and an average volume fraction of from 5 or 10 percent to 50 or 60 percent.
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公开(公告)号：WO2021023387A1
公开(公告)日：2021-02-11
申请号：PCT/EP2019/071305
申请日：2019-08-08
IPC分类号： B29C64/118 , B29C64/194 , B29C64/245 , B29C64/40 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y40/20 , C23C24/04
摘要： Method for direct shape forming in cold spray process and system A cold spray deposition system which is based on two manipulators (1, 2) (for example industrial robots), the first having a cold spray gun (21) as tool and the second having a deposition tool (11) which can extrude a polymer. The first manipulator performs the cold spray deposition process as in standard cold spray applications while the second one deposits a polymeric material in the areas where the deposition process has to be blocked.
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