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公开(公告)号:WO2019133349A1
公开(公告)日:2019-07-04
申请号:PCT/US2018/066346
申请日:2018-12-19
Applicant: DSM IP ASSETS, B.V.
Inventor: REN, Kangtai
IPC: B29C64/106 , B33Y70/00 , G01P5/20 , G01M9/08 , C08F220/18 , G03F7/00 , G03F7/027 , G03F7/105
CPC classification number: B29C64/106 , B33Y70/00 , C08F220/18 , G01M9/08 , G01P5/20 , G03F7/0037 , G03F7/027 , G03F7/105
Abstract: Radiation curable compositions for additive fabrication processes, the components cured therefrom, and their use in particle image velocimetry testing methods are described and claimed herein. Such compositions include compounds which induce free-radical polymerization, optionally compounds which induce cationic polymerization, a filler constituent, and a light absorbing component, wherein the compositions are configured to possess certain absorbance values at wavelengths commonly utilized in particle image velocimetry testing. In another embodiment, the compositions include a fluoroantimony-modified compound. Such compositions may be used in particle imaging velocimetry testing methods, wherein the test object utilized is created via additive fabrication and is of a substantially homogeneous construction.
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公开(公告)号:WO2019130308A1
公开(公告)日:2019-07-04
申请号:PCT/IL2018/051399
申请日:2018-12-27
Applicant: STRATASYS LTD.
Inventor: RUMBAK, Mayan , NAPADENSKY, Eduardo , SARFATI, Raffy , MIDA, Gavish
IPC: B29C64/106 , B29C64/393
CPC classification number: B29C64/106 , B29C64/393
Abstract: A method of additive manufacturing a three-dimensional object by layerwise deposition of a building material with an inkjet printing system comprising a print head and a building tray, comprises calculating a weighting value for each nozzle, then for each layer obtaining a 2-D map of the layer, comprising active pixels at building material dispensing positions; obtaining a Data Correction Filter (DCF) including a height map of the previous layer, comparing the data of the 2D map to the data of the DCF at each position and determining if the nozzle at that position should dispense, then printing the layer, updating the weighting values and adjusting the position of the print head vis a vis the printing tray. The above is repeated until the three-dimensional object is printed.
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公开(公告)号:WO2019124232A1
公开(公告)日:2019-06-27
申请号:PCT/JP2018/046006
申请日:2018-12-14
Applicant: キヤノン株式会社
Inventor: 小川 涼
IPC: C08F290/06 , B29C64/106 , B29C64/264 , B33Y70/00 , C08G59/24 , C08G64/02 , C08G64/42 , C08L63/00
CPC classification number: B29C64/106 , B29C64/264 , B33Y70/00 , C08F290/06 , C08G59/24 , C08G64/02 , C08G64/42 , C08L63/00
Abstract: 光学的立体造形法に好適に用いることのできる光硬化性樹脂組成物、並びにそれを光硬化させて得られる硬化物および硬化物からなる立体造形物を提供することであって、該光硬化性樹脂組成物は、式(1)で表される化合物と2以上のエポキシ基を含有する化合物とを含有することを特徴とする。
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公开(公告)号:WO2019124150A1
公开(公告)日:2019-06-27
申请号:PCT/JP2018/045378
申请日:2018-12-11
Applicant: 株式会社エンプラス
IPC: B29C64/106 , B29C64/264 , B33Y10/00
CPC classification number: B29C64/106 , B29C64/264 , B33Y10/00
Abstract: 【課題】微細穴を有する三次元構造物の三次元CADデータをそのまま使用して造形しても、微細穴が余剰硬化物で塞がってしまうことがない積層造形法を提供する。 【解決手段】光照射によって硬化した樹脂層(2,3)を積み重ね、微細穴4を有する三次元構造物1を製造するようになっている。三次元構造物1は、微細穴4が形成される微細穴形成樹脂層2と、微細穴4が形成されない微細穴非形成樹脂層3と、を有している。そして、微細穴非形成樹脂層3は、微細穴4を積層面と平行の仮想平面7に投影した形状が微細穴投影形状とすると、仮想平面7への投影形状が微細穴投影形状よりも大きい空間6であって、且つ、仮想平面7への投影形状が微細穴投影形状の全てを含む大きさの空間6が、樹脂層(2,3)の積層方向に沿って形成される。
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公开(公告)号:WO2019084177A1
公开(公告)日:2019-05-02
申请号:PCT/US2018/057367
申请日:2018-10-24
Applicant: SELIM, Riham, M. , FAUVER, Mark , GAAFAR, Ahmed
Inventor: SELIM, Riham, M. , FAUVER, Mark , GAAFAR, Ahmed
IPC: B29C64/209
CPC classification number: B29C48/02 , B29C48/175 , B29C64/106 , B29C64/129 , B29C64/209 , B29C64/259 , B33Y10/00 , B33Y30/00 , B33Y70/00
Abstract: Three-dimensional printing pens (10) and related systems and methods are provided. A three-dimensional printing pen (10) may include a plurality of cartridges (12, 412), each cartridge (12, 412) having a hollow cartridge body (19A, 19B, 19C, 19D, 19) sized and shaped to include a colored thixotropic paste (18), a color of each thixotropic paste being different from a color of another thixotropic paste, and a plurality of nozzles, each nozzle (20) fluidly communicatively coupled to a corresponding cartridge (12, 412). The three-dimensional printing may further include a motor unit (28, 428) operably coupled to the plurality of cartridges (12, 412), the motor unit (28, 428) operable to expel the colored thixotropic paste (18) from each cartridge (12, 412) through the corresponding nozzle (20), a mixing tip (41, 441) fluidly communicatively coupled to the plurality of nozzles, the mixing tip (41, 441) sized and shaped to dispense therethrough one or more of the colored thixotropic pastes (18) in a form of an output thixotropic paste (9), and a projection module (468, 68). The projection module (468, 68) may include a light engine assembly (69) that emits light having a wavelength, the light being projected to the output thixotropic paste (9) to cure the output thixotropic paste (9) that is dispensed from the mixing tip (41, 441). Produced by..wordstat, ver. 2018.11.12.03, created by Ian Chappie
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公开(公告)号:WO2019054320A1
公开(公告)日:2019-03-21
申请号:PCT/JP2018/033405
申请日:2018-09-10
Applicant: キヤノン株式会社
IPC: B28B1/30 , B29C64/106 , C04B35/622 , C04B35/624 , B33Y10/00 , B33Y70/00
CPC classification number: B28B1/30 , B29C64/106 , B33Y10/00 , B33Y70/00 , C04B35/622 , C04B35/624
Abstract: セラミックス粉末からなるセラミックス粉末層を形成する工程と、前記セラミックス粉末層の所望の領域に、金属アルコキシド、金属塩化物、前記金属アルコキシドの加水分解物、前記加水分解物の重縮合体のいずれかのうちの少なくとも一種と、水と、を少なくとも含有する液状の前駆体組成物を付与する工程と、を複数回繰り返して積層体(13)を得た後、該積層体(13)を、前記セラミックス粉末の焼結温度よりも低い温度で加熱し、前記前駆体組成物が付与されなかった領域(11')のセラミックス粒子を除去して立体物(14)を得る。
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公开(公告)号:WO2019053712A1
公开(公告)日:2019-03-21
申请号:PCT/IL2018/051006
申请日:2018-09-06
Applicant: BIG METAL 3D LTD.
Inventor: LAVI, Gil , VINOGRADOV, Boaz
CPC classification number: B29C64/106 , B22D23/00 , B22F3/008 , B29C64/30 , B29C64/40 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y80/00
Abstract: A method and an apparatus for additive casting of parts is disclosed. The method may include: depositing, on a build table, a first portion of a mold, such that, the depositing may be performed layer by layer; pouring liquid substance into the first portion of the mold to form a first casted layer; solidifying at least a portion of the first casted layer; depositing a second portion of the mold, on top of the first portion of the mold; pouring the liquid substance into the second portion of the mold to form a second casted layer, on top of at least a portion of the first casted layer; and solidifying at least a portion of the second casted layer. The method may further include joining the first and second casted layers prior to the pouring of a third casted layer.
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公开(公告)号:WO2019031691A1
公开(公告)日:2019-02-14
申请号:PCT/KR2018/005868
申请日:2018-05-24
Applicant: (주)엘에스비
IPC: B29C64/245 , B29C64/295 , B29C64/379 , B29C64/106 , B33Y40/00
CPC classification number: B29C64/106 , B29C64/245 , B29C64/295 , B29C64/379 , B33Y40/00
Abstract: 베이스에 성형되는 조형물의 재질에 따라 선택적으로 가열 또는 냉각시킴에 따라 성형 된 조형물을 베이스로부터 간편하면서 손쉽게 분리할 수 있도록 내부가 중공 된 박스 형태로 상면으로 적층 되면서 성형되는 조형물의 재질에 따라 가열 또는 냉각이 이루어질 수 있는 펠티어 소자;를 내장하는 것을 포함하는 3D 프린터용 냉각 기능을 포함하는 베이스를 제공한다. 그에 따라 베이스에 성형된 조형물의 재질에 따라 분리시 손상이나 파손됨 없이 분리가 용이하게 이루어질 수 있는 효과를 가진다.
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公开(公告)号:WO2018228919A1
公开(公告)日:2018-12-20
申请号:PCT/EP2018/065035
申请日:2018-06-07
Applicant: SCHMID, Christian
Inventor: SCHMID, Christian
IPC: B29C64/209 , B29C64/20 , B29C64/393 , B23K26/342 , B22F3/105 , B29C64/106 , B29C64/188
CPC classification number: B29C64/209 , B22F3/1055 , B22F2003/1056 , B23K9/04 , B23K26/342 , B23P23/04 , B29C64/106 , B29C64/188 , B29C64/20 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: Eine Vorrichtung und ein Verfahren für den lagenweisen, additiven, dreidimensionalen Materialaufbau für die Herstellung von Bauteilen (4) aus Metall, Kunststoff und/oder Mischformen mit einem Druckkopf (2) wobei unterschiedliche additive Verfahren wie das Fused Deposition Modeling FDM, das Wire and Arc Additive Manufacturing WAAM sowie das Laser Auftragsschweißen sowie subtraktive spanende Prozesse, wie das Fräsen, Bohren und Schleifen in einer Aufspannung eingesetzt werden. Die Vorrichtung ist dabei so ausgeführt, dass ein Wechselsystem (8) am Bewegungssystem (1) ein schnelles Wechseln von Verfahrensspezifischen Druckköpfen (2, 17, 18, 19, 20) und weiteren Systemen für weitere, bei der Herstellung des Bauteils notwendigen Prozesse wie Messsensoren (6), die durch das Bewegungssystem (1) über das Bauteil geführt werden oder die spanenden Geräte. Das Verfahren sieht bei der Herstellung der Bauteile nach jeder x-ten Lage eine Messung der ortsaufgelösten Oberflächentemperaturen mittels eines Temperatursensors in festgelegten Bauteilsektoren vor, deren sektorbezogene Mittelwerte zur Festlegung der weiteren Aufbaureihenfolge zur Hilfe genommen werden. Ein Algorithmus sortiert die Sektoren nach aufsteigenden Temperaturmittelwerten. Beginnend mit dem Sektor der geringsten mittleren Temperatur werden nach aufsteigender Temperatur die einzelnen Sektoren je Lage aufgebaut. Der Ablauf kann nach jeder beliebigen Lage wiederholt werden. Zusätzlich besteht die Möglichkeit ebenfalls in der abgeschlossenen Lage die Nahtgeometriemaße wie Höhe und Breite zu messen und mit einem Sollwert zu vergleichen und ggf. mittels spanender Bearbeitung oder lokalem Aufbau zu korrigieren.
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公开(公告)号:WO2018213256A1
公开(公告)日:2018-11-22
申请号:PCT/US2018/032680
申请日:2018-05-15
Applicant: VANDERBILT UNIVERSITY
Inventor: BRUBAKER, Cole , ADAMS, Douglas, E. , FRECKER, Talitha, M. , JENNINGS, Gannon, Kane , ROSENTHAL, Sandra, J.
IPC: B29C64/106 , B29C64/118 , B29B15/14 , B82Y40/00 , B82Y30/00
CPC classification number: B29B15/14 , B29C64/106 , B33Y10/00 , B33Y70/00 , B82Y30/00
Abstract: A method of incorporating quantum dots into a filament for use in three-dimensional (3D) printing. The method includes dissolving polymer in a solvent, and adding quantum dots to the dissolved polymer to produce a polymer-quantum dot composite. The method further includes drying the polymer-quantum dot composite to produce a polymer-quantum dot filament.
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