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No. Publication Number Title Publication/Patent Number Publication/Patent Number Publication Date Publication Date
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1 US2020247041A1
SELECTIVE SINTERING ADDITIVE MANUFACTURING METHOD AND POWDER USED THEREIN
Publication/Patent Number: US2020247041A1 Publication Date: 2020-08-06 Application Number: 15/770,006 Filing Date: 2016-10-18 Inventor: Katzenstein, Joshua M.   Moglia, Robert S.   Leugers, Mary Anne   Pyzik, Aleksander J.   Matteucci, Scott T.   Allen, Sharon   Dermody, Daniel L.   Bayer, Roland   Assignee: Dow Global Technologies LLC   IPC: B29C64/153 Abstract: A method of selective sintering additive manufacturing comprises employing a powder comprising composite particulates comprising a first thermoplastic polymer and a second thermoplastic polymer interspersed with each other. In a particular embodiment, the first thermoplastic polymer and second thermoplastic polymer have differing absorbance of the irradiation used to sinter the particles when performing the additive manufacturing method. The first and second thermoplastic polymer may be continuously intertwined in within the particles or one of the polymers may be a discontinuously dispersed in a continuous matrix of the other polymer.
2 WO2020018604A1
SPATIAL POROSITY AND COMPOSITION CONTROL IN ADDITIVE MANUFACTURING
Publication/Patent Number: WO2020018604A1 Publication Date: 2020-01-23 Application Number: 2019042097 Filing Date: 2019-07-16 Inventor: Hart, Anastasios John   Penny, Ryan Wade   Feldmann, Martin C.   Baker, Stuart P.   Gibbs, Jonathan S.   Assignee: Massachusetts Institute of Technology   IPC: B29C64/153 Abstract: Disclosed are systems, devices, and methods for additive manufacturing that allow for control of composition and/or porosity of components being manufactured. More particularly, in exemplary embodiments, a secondary material can be used in conjunction with a primary feedstock material in a spatially controlled manner during an additive manufacturing process to control a composition of materials and/or porosity of a manufactured component. Systems, devices, and methods for additive manufacturing are also disclosed that allow for control of a pressure of an atmosphere surrounding a build surface during an additive manufacturing process. More particularly, a pressure of an atmosphere surrounding a build surface can be raised to a pressure greater than standard atmospheric pressure. Various features of the exemplary embodiments of the systems, devices, and methods disclosed can be used together to further control for composition and/or porosity and quality of a manufactured part.
3 US2020055235A1
METHOD FOR PRODUCING PRODUCTS BY MEANS OF ADDITIVE MANUFACTURING METHODS USING REACTIVE POWDERS, AND PRODUCTS THEREOF
Publication/Patent Number: US2020055235A1 Publication Date: 2020-02-20 Application Number: 16/609,247 Filing Date: 2018-05-09 Inventor: Achten, Dirk   Buesgen, Thomas   Faecke, Thomas   Mettmann, Bettina   Buechner, Joerg   Laas, Hans-josef   Liu, Ting   Assignee: Covestro Deutschland AG   IPC: B29C64/153 Abstract: The invention relates to a method for producing a three-dimensional object by means of a powder-based additive production method from at least one first powdery material, wherein the at least one first powdery material comprises at least one first compound having a first reactive group a). The first reactive group a) is selected from the group consisting of an isocyanate group, a blocked isocyanate group, or a mixture thereof. The invention further relates to a component produced using the method according to the invention, and to powdery material that is suited for the method according to the invention.
4 US2020055234A1
POLYARYLENE SULFIDE RESIN POWDER GRANULAR ARTICLE MIXTURE AND METHOD FOR PRODUCING THREE-DIMENSIONAL MOLDED ARTICLE
Publication/Patent Number: US2020055234A1 Publication Date: 2020-02-20 Application Number: 16/343,668 Filing Date: 2017-10-13 Inventor: Watanabe, Kei   Takeda, Kazusada   Miyama, Hisashi   Nishida, Mikiya   Shibata, Hikaru   Assignee: Toray Industries, Inc.   IPC: B29C64/153 Abstract: A polyarylene sulfide resin powder granular article mixture enabling production of a highly heat-resistant and high-ductility three-dimensional molded article has: 5-25 parts by weight of fluorine resin powder granular article with respect to 100 parts by weight of polyarylene sulfide resin powder granular article; an average particle size of greater than 1 μm to 100 μm or less; an angle of repose of 43 degrees or less; and a homogeneity of 4 or less.
5 US2020047409A1
APPARATUS FOR ADDITIVELY MANUFACTURING THREE-DIMENSIONAL OBJECTS
Publication/Patent Number: US2020047409A1 Publication Date: 2020-02-13 Application Number: 16/293,648 Filing Date: 2019-03-06 Inventor: DÖhler, Tim   Assignee: CONCEPT LASER GMBH   IPC: B29C64/153 Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy source (4), comprising a build material application unit (9) that is adapted to receive, in particular powdery, build material (3) and adapted to apply at least one build material layer in a build plane (8), wherein a determination device (17) with at least one determination unit (18) connected in advance to the build material application unit (9) with respect to the build material flow direction (20), wherein the determination unit (18) is adapted to determine at least one build material parameter of at least one part of the build material (3) provided to the build material application unit (9).
6 EP3628460A2
RESIN POWDER, DEVICE FOR MANUFACTURING SOLID FREEFORM FABRICATION OBJECT, AND METHOD OF MANUFACTURING SOLID FREEFORM FABRICATION OBJECT
Publication/Patent Number: EP3628460A2 Publication Date: 2020-04-01 Application Number: 19195836.2 Filing Date: 2019-09-06 Inventor: Kamoda, Kiichi   Saito, Akira   Aman, Yasutomo   Iwatsuki, Hitoshi   Assignee: Ricoh Company, Ltd.   IPC: B29B9/06 Abstract: A resin powder contains a resin contains columnar particles, wherein the proportion of the columnar particles having a ratio (L/W) of less than 1 is 50 percent by volume or more in the total volume of the resin powder, where W represents the width in the radial direction of the columnar particles and L represents the length in the axis direction of the columnar particles.
7 EP3628460A3
RESIN POWDER, DEVICE FOR MANUFACTURING SOLID FREEFORM FABRICATION OBJECT, AND METHOD OF MANUFACTURING SOLID FREEFORM FABRICATION OBJECT
Publication/Patent Number: EP3628460A3 Publication Date: 2020-08-19 Application Number: 19195836.2 Filing Date: 2019-09-06 Inventor: Kamoda, Kiichi   Saito, Akira   Aman, Yasutomo   Iwatsuki, Hitoshi   Assignee: Ricoh Company, Ltd.   IPC: B29B9/06 Abstract: A resin powder contains a resin contains columnar particles, wherein the proportion of the columnar particles having a ratio (L/W) of less than 1 is 50 percent by volume or more in the total volume of the resin powder, where W represents the width in the radial direction of the columnar particles and L represents the length in the axis direction of the columnar particles.
8 CA3060285A1
SHAPING METHOD FOR THREE-DIMENSIONAL SHAPED PRODUCT
Publication/Patent Number: CA3060285A1 Publication Date: 2020-01-09 Application Number: 3060285 Filing Date: 2019-10-28 Inventor: Tomita, Seiichi   Assignee: MATSUURA MACHINERY CORPORATION   IPC: B33Y10/00 Abstract: [Purpose] To realize efficient use of powder and improved squeegee working efficiency. [Solution Means] A shaping method for a three-dimensional shaped product, which employs following processes after formation of powder layers on the top side of a shaping table 1 and sintering by a beam. 1. Setting a traveling distance of the squeegee to be a short distance that does not reach a chamber wall section. 2. Establishing location of wall layers connecting both ends at the chamber wall sections in a direction perpendicular to the traveling direction of the squeegee, within a traveling range based on the traveling distance set by the process 1, or connecting to the ends on a powder feeder side at inner side of the chamber wall sections with a state surrounding a region that is to be sintered, from both sides of the region. 3. Forming powder layers by movement of the squeegee over the traveling distance set in the process 1. 4. Forming sintered layers by irradiation with a beam on the powder layers formed by the process 3, and forming wall layers by irradiation with a beam at the locations of the wall layers established by the process 2. 5. Repeating the processes 3 and 4.
9 US2020269496A1
ADDITIVE MANUFACTURING METHOD FOR MAKING A THREE-DIMENSIONAL OBJECT USING SELECTIVE LASER SINTERING
Publication/Patent Number: US2020269496A1 Publication Date: 2020-08-27 Application Number: 16/646,158 Filing Date: 2018-09-14 Inventor: Jeol, Stéphane   Ward, Christopher   Leo, Vito   Assignee: SOLVAY SPECIALTY POLYMERS USA, LLC   IPC: B29C64/153 Abstract: The present disclosure relates to an additive manufacturing (AM) method for making a three-dimensional (3D) object, comprising a) the provision of providing a powdered polymer material (M) comprising at least one poly(ether ether ketone) (PEEK) polymer, and at least one poly(aryl ether sulfone) (PAES) polymer, b) the deposition of successive layers of the powdered polymer material; and c) the selective sintering of each layer prior to the deposition of the subsequent layer, wherein the powdered polymer material (M) is heated before step c) to a temperature Tp (° C.): Tp<Tg+40, wherein Tg (° C.) is the glass transition temperature of the PAES polymer, as measured by differential scanning calorimetry (DSC) according to ASTM D3418.
10 EP3600730A1
DEVICE, METHOD AND SYSTEM FOR THE ADDITIVE MANUFACTURE OF WORKPIECES
Publication/Patent Number: EP3600730A1 Publication Date: 2020-02-05 Application Number: 18724868.7 Filing Date: 2018-05-15 Inventor: Niebling, Arno   Protzmann, Michael   Holz, Prof. Dr. Markus   Franz, Henrik   Assignee: Ald Vacuum Technologies GmbH   IPC: B22F3/105
11 EP3339473B1
MODULAR TOOLING FOR A DEPOSITED STRUCTURE
Publication/Patent Number: EP3339473B1 Publication Date: 2020-07-01 Application Number: 17199551.7 Filing Date: 2017-11-01 Inventor: Roberge, Gary D.   Brindley, William J.   Assignee: United Technologies Corporation   IPC: C23C24/04
12 CN111093951A
用于对用于通过增材制造生产物体的设备进行校准的方法
Under Examination
Publication/Patent Number: CN111093951A Publication Date: 2020-05-01 Application Number: 201880060967.5 Filing Date: 2018-09-19 Inventor: 欧文·维基恩   罗伯·彼得·艾伯特·万亨德尔   马克·赫尔曼·埃尔斯·维斯   Assignee: 添加剂工业有限公司   IPC: B29C64/153 Abstract: 本发明涉及一种用于对用于通过增材制造生产物体的设备(1)进行校准的方法。该设备包括处理室(3)、以及用于相对于待固化的材料(4)浴的表面水平定位物体(2)的支撑件(5)。固化装置(7)被布置成在表面水平上发射辐射(7)束以固化所述材料的选择性部分。固化装置(7)包括用于调节聚焦设置的聚焦构件(76)。根据本发明的方法包括控制固化装置以在不同的聚焦设置下形成测试图案(a‑i)的步骤。具有传感器单元(81)的校准系统(8)被用于确定测试图案的特征,并且基于该特征确定校准后的聚焦设置。
13 US10583606B2
Method and supports with powder removal ports for additive manufacturing
Publication/Patent Number: US10583606B2 Publication Date: 2020-03-10 Application Number: 15/041,980 Filing Date: 2016-02-11 Inventor: Joerger, Daniel   Dunham, Neal   Assignee: General Electric Company   IPC: B29C64/153 Abstract: The present disclosure generally relates to methods for additive manufacturing (AM) that utilize powder removal ports in the process of building objects, as well as novel support structures including powder removal ports to be used within these AM processes. The objects include walls defining regions of unfused powder. The powder removal ports include at least one tube aligned with an opening in the walls to allow removal of the powder. The methods include removing unfused powder from the enclosed space via the at least one tube.
14 US2020141579A1
COMBUSTOR DOME VIA ADDITIVE LAYER MANUFACTURING
Publication/Patent Number: US2020141579A1 Publication Date: 2020-05-07 Application Number: 16/180,529 Filing Date: 2018-11-05 Inventor: Sauer, Kevin   Dailey, Lewis   Mccormick, Keith   Smith, Duane   Debruhl, Christopher D.   Assignee: Rolls-Royce Corporation   Rolls-Royce North American Technologies Inc.   IPC: F23R3/00 Abstract: A combustor dome may be formed by way of additive layer manufacturing. The combustor dome may further include a raised outer surface and a recessed outer surface on a hot side of the combustor dome. The recessed outer surfaces may be closer to the cold side than the raised outer surfaces. The combustor dome may include a shadow surface defined between the raised outer surface and recessed outer surface. The shadow surface may define a corresponding cooling outlet in fluid communication with an internal cooling channel defined inside of the combustor dome. The cooling outlet may release air from the internal cooling channel to the hot axial side of the combustor dome.
15 EP3592486A1
ELECTRON BEAM INSTALLATION AND METHOD FOR WORKING POWDERED MATERIAL
Publication/Patent Number: EP3592486A1 Publication Date: 2020-01-15 Application Number: 18708632.7 Filing Date: 2018-02-26 Inventor: Hansen, Björn   Huber, Gerhard   LÖwer, Thorsten   Assignee: pro-beam GmbH & Co. KGaA   IPC: B22F3/105
16 EP3600729A1
METHOD FOR THE ADDITIVE MANUFACTURE OF WORKPIECES
Publication/Patent Number: EP3600729A1 Publication Date: 2020-02-05 Application Number: 18724867.9 Filing Date: 2018-05-15 Inventor: Niebling, Arno   Protzmann, Michael   Holz, Markus   Franz, Henrik   Assignee: Ald Vacuum Technologies GmbH   IPC: B22F3/105
17 EP3122538B1
DEVICE AND METHOD FOR PRODUCING A THREE-DIMENSIONAL OBJECT LAYER BY LAYER AND NOZZLE FOR GASFLOW INTO THE DEVICE
Publication/Patent Number: EP3122538B1 Publication Date: 2020-04-29 Application Number: 15712902.4 Filing Date: 2015-03-27 Inventor: NyrhilÄ, Olli   Schilling, Alexander   Hamann, Jörg   DomrÖse, Robert Achim   Wolf, Dominik   SyvÄnen, Tatu   Minet, Kevin   Assignee: EOS GmbH Electro Optical Systems   IPC: B29C64/371
18 EP3468774B1
ADDITIVE MANUFACTURING DEVICE INCLUDING A MOVABLE BEAM GENERATION UNIT OR DIRECTING UNIT
Publication/Patent Number: EP3468774B1 Publication Date: 2020-09-02 Application Number: 17726305.0 Filing Date: 2017-05-29 Inventor: Von, Burg Christian   Zeltner, Joscha   Solenicki, Dominik   Assignee: Sintratec AG   IPC: B29C64/153
19 CN111559077A
三维造型物的造型方法
Under Examination
Publication/Patent Number: CN111559077A Publication Date: 2020-08-21 Application Number: 201911134616.7 Filing Date: 2019-11-19 Inventor: 富田诚一   Assignee: 株式会社松浦机械制作所   IPC: B29C64/153 Abstract: 本发明提供一种提高粉末使用效率和刮刀工作效率的三维造型物的造型方法,包括造型台上侧的粉末层的形成和由激光进行的烧结,采用:工序1,将刮刀移动距离设定为不到达腔室壁部的短距离;工序2,在基于由工序1设定的移动距离的移动区域内,确定将与刮刀移动方向正交的方向的两端侧连接的壁部层、或在包围预定进行烧结的区域的状态下对于粉末供给部侧的端部从该区域的两侧连接的线状的壁部层的位置;工序3,通过以由工序1设定的移动距离移动刮刀而形成粉末层;工序4,对于由工序3形成的粉末层,通过照射激光束或电子束而形成烧结层,并且在由工序2确定的壁部层的位置通过照射激光束或电子束而形成壁部层;工序5,反复进行工序3和4。
20 CN111716715A
一种基于液相光驱动的激光微纳米沉积打印方法
Under Examination
Publication/Patent Number: CN111716715A Publication Date: 2020-09-29 Application Number: 202010406138.7 Filing Date: 2020-05-14 Inventor: 王雷   王霞   Assignee: 青岛科技大学   IPC: B29C64/153 Abstract: 本发明属于激光技术领域,涉及一种基于液相光驱动的激光微纳米沉积打印方法,将光驱动粉末材料浸入液体中,使用激光束辐照液体中的材料,利用光驱动实现材料在目标基底上的沉积打印;既具有喷墨打印等增材制造技术的便捷性和可设计性,同时又具有投影曝光技术的高精度和大面积高效制造等优势,是一种颠覆性的微纳米沉积打印技术,整个沉积打印过程简单高效,绿色环保,应用前景广阔。