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1. 发明申请

WO2019110939A1 PROCÉDÉ DE FABRICATION D'UN RÉSEAU ORDONNE DE CANAUX ACOUSTIQUES EN MATÉRIAU ABRADABLE 审中-公开
公开(公告)号：WO2019110939A1
公开(公告)日：2019-06-13
申请号：PCT/FR2018/053134
申请日：2018-12-06
申请人： SAFRAN AIRCRAFT ENGINES
发明人： MARDJONO, Jacky, Novi , DUBOURG, Arnaud , FOTSING, Edith-Roland , ROSS, Annie
IPC分类号： F02C7/24 , G10K11/16 , G10K11/172 , B33Y80/00 , B33Y70/00 , B33Y10/00 , B33Y40/00 , B29C64/314 , B29C64/118 , B29C70/38 , B64D33/02
CPC分类号： B29C70/38 , B29C64/118 , B29C64/314 , B33Y10/00 , B33Y40/00 , B33Y70/00 , B33Y80/00 , F02C7/24 , G10K11/161 , G10K11/172
摘要： Procédé de fabrication d'un revêtement abradable consistant à déposer sur une surface de substrat (12) un filament d'un matériau thermodurcissable tout en assurant à la fois un déplacement relatif entre le substrat et le filament selon une trajectoire de dépôt déterminée et une solidification du filament afin de créer un échafaudage tridimensionnel de filaments constitué de couches superposées dont les filaments d'une couche donnée ne sont pas jointifs et peuvent être orientés différemment de ceux d'une couche adjacente, de sorte à lui conférer des propriétés d'absorption des ondes acoustiques, le matériau thermodurcissable étant un mélange thixotrope dépourvu de solvant et constitué d'une base polymère et d'un agent de réticulation dans un rapport pondéral de la base polymère à l'agent de réticulation compris entre 1 :1 et 2 :1, et d'un composant de facilitation de l'écoulement, typiquement une gelée de pétrole présente entre 5 et 15% en poids du poids total dudit mélange thixotrope.

2. 发明申请

WO2019108331A1 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 .

3. 发明申请

WO2019080148A1 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.

4. 发明申请

WO2019046808A1 POLYMERS FOR ADDITIVE MANUFACTURING 审中-公开
公开(公告)号：WO2019046808A1
公开(公告)日：2019-03-07
申请号：PCT/US2018/049250
申请日：2018-08-31
申请人： POLY-MED, INC.
发明人： TAYLOR, Michael, Scott , HYDE, James , GAERKE, Brian , JOHNS, Brad , VAUGHN, Michael, Aaron , MCCULLEN, Seth, Dylan , GRAVETT, David
IPC分类号： A61L15/26 , A61L15/64 , B29C47/00 , C08G63/64 , C08G63/91
CPC分类号： C08L67/04 , B29C64/118 , B29C67/202 , B29C71/0009 , B29C2071/0027 , B29K2105/04 , B33Y10/00 , B33Y70/00 , C08K3/16 , D01D5/247 , D01F6/44 , D01F6/88 , C08L23/06 , C08L71/02
摘要： Porous and microporous parts prepared by additive manufacturing as disclosed herein are useful in medical and non-medical applications. The parts are prepared from a composition containing both a solvent soluble component and a solvent insoluble component. After a part is printed by an additive manufacturing process it is exposed to solvent to extract solvent soluble component away from the printed part, resulting in a part having surface cavities.

5. 发明申请

WO2018200306A1 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.

6. 发明申请

WO2018192794A1 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.

7. 发明申请

WO2018191266A1 METHOD AND APPARATUS FOR DETERMINING EXTRUDATE FLOW IN THREE-DIMENSIONAL (3D) PRINGTING 审中-公开
公开(公告)号：WO2018191266A1
公开(公告)日：2018-10-18
申请号：PCT/US2018/026895
申请日：2018-04-10
申请人： DESKTOP METAL, INC.
发明人： BARBATI, Alexander, C. , MYERBERG, Jonah, Samuel
IPC分类号： B29C64/106 , B29C64/209 , B33Y10/00 , B33Y30/00 , B29C64/343
CPC分类号： B29C64/393 , B29C64/106 , B29C64/118 , B29C64/209 , B29C64/227 , B29C64/295 , B29C64/343 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： An additive manufacturing apparatus, and corresponding method, determine a mass (or volume) output flow rate of extrudate used in three-dimensional (3D) printing, and such determination is insensitive to rheological properties of a material of the extrudate being printed. A thermal energy balance on a liquefying extrusion head enables a load on a heater, used to heat the extrusion head, to be related to the output flow rate of extrudate. Based on the thermal energy balance, the output flow rate may be determined based on a duty cycle of the heater. The output flow rate may be employed to affect the 3D printing to prevent over- or under-extrusion of the extrudate and to identify a fault condition.

8. 发明申请

WO2018161994A1 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.

9. 发明申请

WO2018069246A1 PRINTER HEAD AND EXTRUSION-BASED ADDITIVE MANUFACTURING METHOD 审中-公开
标题翻译：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。

10. 发明申请

WO2018067918A2 METAL FIBER COMPOSITE ADDITIVE MANUFACTURING (MFC-AM) AND COMPOSITE STRUCTURES FORMED BY MFC-AM 审中-公开
标题翻译： 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。

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