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192 条记录 (耗时 0.019 秒)

    FILAMENT HEATING IN 3D PRINTING SYSTEMS
    2.
    发明申请
    FILAMENT HEATING IN 3D PRINTING SYSTEMS 审中-公开

    公开(公告)号：WO2019108331A1

    公开(公告)日：2019-06-06

    申请号：PCT/US2018/058156

    申请日：2018-10-30

    申请人： AREVO, INC.

    发明人： ARMIJO, Armando ,  MANTHA, Chandrashekar

    IPC分类号： B29C64/118 ,  B29C64/393

    CPC分类号： B29C64/118 ,  B29C64/209 ,  B29C64/321 ,  B29C64/393 ,  B33Y10/00 ,  D02J13/001

    摘要： A method of heating thermoplastic filament in additive manufacturing systems, such as 3D printing systems. In accordance with the illustrative embodiment of the present invention, the temporal rate dE/dt at which heat dE is added to a portion of a segment of filament is a function of the temporal rate dm/dt at which the mass dm of the portion of the segment of filament is deposited. In particular, the temporal rate dE/dt at which heat dE is added to a portion of a segment of filament is a non-linear function of the temporal rate dm/dt .

    SWITCHING DEVICE FOR PRINTING MODE OF 3D PRINTER
    3.
    发明申请
    SWITCHING DEVICE FOR PRINTING MODE OF 3D PRINTER 审中-公开

    公开(公告)号：WO2019080148A1

    公开(公告)日：2019-05-02

    申请号：PCT/CN2017/108490

    申请日：2017-10-31

    申请人： SHANGHAI FUSION TECH CO., LTD.

    发明人： LI, Jianzhe ,  FENG, Hua ,  CAO, Xi ,  LONG, Wangping

    IPC分类号： B29C64/00

    CPC分类号： B29C64/00 ,  B29C64/118 ,  B29C64/20 ,  B29C64/205 ,  B29C64/245 ,  B33Y30/00

    摘要： A switching device for a printing mode of a 3D printer, wherein the switching device includes: at least two handpiece guiding parts (110), each handpiece guiding part (110) is provided with at least one handpiece body (100), and the handpiece body (100) is capable of moving along a length direction of the handpiece guiding part (110); at least two platform guiding parts (210), each platform guiding part (210) is provided with at least one platform body (200), the platform body (200) is capable of moving along a length direction of the platform guiding part (210), and the length direction of the handpiece guiding part (110) and that of the corresponding platform guiding part (210) are disposed in a staggering manner; at least two handpiece transmission mechanisms (120), wherein the handpiece transmission mechanism (120) is connected to the handpiece body (100) through handpiece clutch mechanism (130); a handpiece drive mechanism, wherein the handpiece drive mechanism drives all of the handpiece transmission mechanisms (120) to move synchronously; at least two platform transmission mechanisms (220), wherein the platform transmission mechanism (220) is connected to the corresponding platform body (200) through platform clutch mechanism (230); and a platform drive mechanism, wherein the platform drive mechanism drives all of the platform transmission mechanisms (220) to move synchronously. The switching device can implement copy printing, mirror printing, and independent printing.

    ROD FEEDER FOR THREE-DIMENSIONAL (3D) PRINTING
    5.
    发明申请
    ROD FEEDER FOR THREE-DIMENSIONAL (3D) PRINTING 审中-公开

    公开(公告)号：WO2018200306A1

    公开(公告)日：2018-11-01

    申请号：PCT/US2018/028343

    申请日：2018-04-19

    申请人： DESKTOP METAL, INC.

    发明人： TITCHENER, Paul

    IPC分类号： B33Y30/00 ,  B22F3/00 ,  B33Y40/00 ,  B29C64/255 ,  B29C64/321

    CPC分类号： B29C64/321 ,  B22F3/008 ,  B29C64/118 ,  B29C64/255 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

    摘要： An apparatus, and corresponding method, feeds build material, in the form of rods, to a drive system in a three-dimensional (3D) printing system. The apparatus dispenses a rod (150) to a media tray (160) and into a first groove defined by a flipper arm (166). The flipper arm is in a substantially horizontal position supported by a bottom ridge (867) of the media tray. The flipper arm is rotated away from the bottom ridge and toward a stopper (162) coupled to the flipper arm and the media tray. The stopper defines a second groove. The apparatus deposits the rod into the drive system via a feed shaft formed by the first and second grooves of the flipper arm and stopper, respectively. The apparatus enables high-speed 3D printing using the rods by overcoming challenges in loading the rods due to brittleness of the rods.

    METHOD FOR MANUFACTURING AN OBJECT BY MEANS OF 3D PRINTING
    6.
    发明申请
    METHOD FOR MANUFACTURING AN OBJECT BY MEANS OF 3D PRINTING 审中-公开

    公开(公告)号：WO2018192794A1

    公开(公告)日：2018-10-25

    申请号：PCT/EP2018/059075

    申请日：2018-04-10

    申请人： PHILIPS LIGHTING HOLDING B.V.

    发明人： VAN HAL, Paulus, Albertus ,  HIKMET, Rifat, Ata, Mustafa

    IPC分类号： B29C64/106 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B29C64/118

    CPC分类号： B29C64/106 ,  B29C64/118 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00

    摘要： A method for manufacturing an object by means of 3D printing is provided. The method uses as printing material an acrylate polymer formed from one or more types of monomers that include at least one of an acrylate monomer and a methacrylate monomer. The method also uses a printer head with a nozzle that is arranged to deposit the printing material, wherein the nozzle has an orifice that comprises a central portion defining a ring of the orifice through which the printing material can be extruded during deposition of the printing material. The method comprises the steps of heating the printing material to a temperature in a range of 200 to 300 degrees Celsius before depositing the printing material, depositing at least a portion of the printing material in the form of a hollow tube having a cylinder shape by extruding the printing material through the ring, and cooling the deposited printing material (105) below its glass transition temperature.

    VERFAHREN ZUR ADDITIVEN FERTIGUNG EINES DREIDIMENSIONALEN GEGENSTANDES
    8.
    发明申请
    VERFAHREN ZUR ADDITIVEN FERTIGUNG EINES DREIDIMENSIONALEN GEGENSTANDES 审中-公开

    公开(公告)号：WO2018161994A1

    公开(公告)日：2018-09-13

    申请号：PCT/DE2018/100123

    申请日：2018-02-13

    申请人： RUHR-UNIVERSITÄT BOCHUM

    发明人： RIEGER, Michael ,  JOHNEN, Benjamin ,  KUHLENKÖTTER, Bernd

    IPC分类号： B33Y50/02 ,  B29C64/393 ,  B29C64/118

    CPC分类号： B29C64/393 ,  B29C64/118 ,  B29C64/40 ,  B33Y50/02

    摘要： Das Verfahren zur additiven Fertigung eines dreidimensionalen Gegenstandes basiert auf einem digitalen Modell, bei welchem auf einer Oberfläche des digitalen Modells wenigstens eine Startfläche festgelegt wird und beginnend auf dieser wenigstens einen Startfläche eine schichtweise Unterteilung des Modells erfolgt. Die Schichten werden nacheinander additiv zu dem dreidimensionalen Gegenstand aufgebaut. Die Lage und Anordnung der auf der wenigstens einer Startfläche basierenden Schichten erfolgt auf Grundlage der Berechnung eines Distanzfeldes, das jedem Punkt des Modellvolumens die kürzeste Distanz innerhalb des Volumens zur nächstgelegenen Startfläche zuordnet. Für jeden diskreten Punkt einer durch ein Distanzfeld definierten Schicht wird eine Orientierung eines Prozesskopfs bestimmt, indem insbesondere entweder die Flächennormale der Schicht berechnet wird oder die Gradientenvektoren des Distanzfeldes berechnet werden, welche für den diskreten Punkt die Richtung des steilsten Anstieges der Distanzen zeigen. Die Form und Verteilung der Schichten passt sich an die Form des digitalen Modells an. Die Reihenfolge für den adaptiven Aufbau ergibt sich aus der Zuordnung der Schichten zu Distanzwerten, beginnend mit dem niedrigsten Distanzwert in aufsteigender Reihenfolge.

    PRINTER HEAD AND EXTRUSION-BASED ADDITIVE MANUFACTURING METHOD
    9.
    发明申请
    PRINTER HEAD AND EXTRUSION-BASED ADDITIVE MANUFACTURING METHOD 审中-公开
    打印头和基于挤出的添加剂制造方法

    公开(公告)号：WO2018069246A1

    公开(公告)日：2018-04-19

    申请号：PCT/EP2017/075667

    申请日：2017-10-09

    申请人： PHILIPS LIGHTING HOLDING B.V.

    发明人： WOUTERS, Bert ,  GIELEN, Vincent, Stefan, David

    IPC分类号： B29C67/00 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y40/00 ,  B29C64/118 ,  B29C64/209

    CPC分类号： B29C64/118 ,  B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

    摘要： A printer head (100) for a 3D-printing apparatus, comprising a nozzle (110) arranged to deposit at least one filament (120) of a printing material in a direction (D) of movement of the printer head along an axis (A). The printer head further comprises at least one element (130) arranged adjacent said nozzle, wherein the at least one element further being arranged downstream of said nozzle with respect to the direction (D) and arranged at a distance (d) perpendicular to the axis (A). The at least one element is configured to be brought into abutting contact with at least one longitudinal side of the at least one filament during deposition of the at least one filament and configured to flatten at least a portion of the longitudinal side of the at least one filament.

    摘要翻译： 一种用于3D打印设备的打印头（100），包括喷嘴（110），所述喷嘴布置成在打印材料的移动方向（D）上沉积至少一个打印材料的丝线（120） 打印头沿轴（A）。 该打印头还包括邻近所述喷嘴布置的至少一个元件（130），其中所述至少一个元件进一步相对于方向（D）布置在所述喷嘴的下游并且布置在与所述轴线垂直的距离（d）处 （一个）。 所述至少一个元件被构造成在所述至少一根细丝的沉积期间与所述至少一根细丝的至少一个纵向侧面进行邻接接触，并且被配置为使所述至少一个细丝的纵向侧的至少一部分 灯丝。

    METAL FIBER COMPOSITE ADDITIVE MANUFACTURING (MFC-AM) AND COMPOSITE STRUCTURES FORMED BY MFC-AM
    10.
    发明申请
    METAL FIBER COMPOSITE ADDITIVE MANUFACTURING (MFC-AM) AND COMPOSITE STRUCTURES FORMED BY MFC-AM 审中-公开
    MFC-AM形成的金属纤维复合添加剂制造（MFC-AM）和复合结构

    公开(公告)号：WO2018067918A2

    公开(公告)日：2018-04-12

    申请号：PCT/US2017/055521

    申请日：2017-10-06

    申请人： UNIVERSITY OF MARYLAND, COLLEGE PARK

    发明人： §HAYMAS, David, M. ,  DESSIATOUN, Serguei, V. ,  OHADI, Michael, M.

    IPC分类号： B29C64/112 ,  B29C64/386

    CPC分类号： B29C64/118 ,  B22F3/08 ,  B29C69/00 ,  B29C70/00 ,  B33Y10/00 ,  B33Y30/00

    摘要： In a metal fiber composite (MFC) additive manufacturing (AM) method, a layer of polymer structures is deposited using a fused filament fabrication (FFF) printer assembly comprising at least one nozzle. Subsequently, an MFC printer assembly is used to embed a continuous metal fiber into one or more of the polymer structures of the layer. The embedding is achieved by heating the metal fiber and applying pressure to the metal fiber using an embedding surface of the MFC printer assembly. The heated metal fiber melts polymer adjacent thereto, thereby allowing the pressure to embed the metal fiber into the polymer structure. Using the MFC-AM method, various composite structures can be formed, such as novel heat exchangers that may otherwise be difficult or impossible to fabricate via other manufacturing techniques.

    摘要翻译： 在金属纤维复合材料（MFC）增材制造（AM）方法中，使用包括至少一个喷嘴的熔丝制造（FFF）打印机组件来沉积聚合物结构层。 随后，使用MFC打印机组件将连续的金属纤维嵌入该层的一个或多个聚合物结构中。 嵌入是通过加热金属纤维并使用MFC打印机组件的嵌入表面对金属纤维施加压力来实现的。 加热的金属纤维熔化与其相邻的聚合物，由此允许压力将金属纤维嵌入聚合物结构中。 使用MFC-AM方法，可以形成各种复合结构，例如通过其他制造技术难以或不可能制造的新型热交换器。