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1
US2021016499A1
IN SITU PARTIALLY DEGRADABLE SEPARATION INTERFACE FOR FABRICATION OF COMPLEX NEAR NET SHAPE OBJECTS BY PRESSURE ASSISTED SINTERING
Publication/Patent Number: US2021016499A1 Publication Date: 2021-01-21 Application Number: 17/042,176 Filing Date: 2019-03-27 Inventor: Olevsky, Eugene   Maniere, Charles   Assignee: UNITED STATES OF AMERICA has certain rights in the invention from DOE Grant No. DE-SC0008581   IPC: B29C64/153 Abstract: The invention relates to a process for fabricating complex mechanical shapes, and in particular to fabricating complex mechanical shapes using a pressure-assisted sintering technique to address problems relating to variations in specimen thickness and tooling, or densification gradients, by 3-D printing of a polymer model that is surrounded by and filled with sintering powder material, wherein the 3-D polymer model decomposed into a graphite interface layer and facilitates release of the cast, e.g. metal, metal-alloy, ceramic, etc., manufactured item.
2
US2021031443A1
ADDITIVE MANUFACTURING OF CONNECTORS AND FASTENERS
Publication/Patent Number: US2021031443A1 Publication Date: 2021-02-04 Application Number: 16/529,612 Filing Date: 2019-08-01 Inventor: Amanatides, Nicholas James   Wegge, Brandon H.   Assignee: The Boeing Company   IPC: B29C64/153 Abstract: An additive manufacturing process is disclosed. A parent member is additively manufactured. The parent member includes a first end and a retention portion proximate to the first end. A support member is additively manufactured onto the parent member. A connector is additively manufactured onto the support member such that the support member is connected between the parent member and the connector. The support member is fracturable to allow movement of the connector with respect to the parent member. The retention portion is configured to prevent the connector from being removed from the first end upon fracturing of the at least one support member. The connector is operable to engage an external member to hold the parent member in a position with respect to the external member.
3
EP3781386A1
SYSTEM AND METHOD FOR ROTATIONAL 3D PRINTING
Publication/Patent Number: EP3781386A1 Publication Date: 2021-02-24 Application Number: 19788398.6 Filing Date: 2019-04-16 Inventor: Pan, Nick   Assignee: Pan, Nick   IPC: B29C64/268
4
US2021001542A1
FABRICATION OF COMPOSITE PARTS BY ADDITIVE MANUFACTURING AND MICROSTRUCTURE TOPOLOGY OPTIMIZATION
Publication/Patent Number: US2021001542A1 Publication Date: 2021-01-07 Application Number: 16/460,543 Filing Date: 2019-07-02 Inventor: Villette, Thibault   Assignee: Saudi Arabian Oil Company   IPC: B29C64/153 Abstract: A system and method for optimizing an additive manufacturing process in which a reinforcement material is randomly introduced to a fabrication bed. An image of the fabrication bed is captured. The image is analyzed by code in a computer to identify the actual arrangement of the randomly deposited reinforcement material relative to the object being manufactured. Based on the image data showing the reinforcement material, a toolpath is dynamically determined that incorporates the random reinforcement material. Accordingly, the toolpath incorporates the reinforcement material into the structure of the object, which can result in a reduction of the total amount of raw material is fused to create the object being manufactured.
5
CN112223746A
一种3D打印设备高精度加工基点的校准方法
Substantial Examination
Publication/Patent Number: CN112223746A Publication Date: 2021-01-15 Application Number: 202010825176.6 Filing Date: 2020-08-17 Inventor: 徐金涛   缪磊   李小燕   张佳   王杰   陈裕峰   刘涛   Assignee: 苏州徕泽丰材料科技有限公司   IPC: B29C64/153 Abstract: 本发明揭露一种3D打印设备高精度加工基点的校准方法,其步骤包括:选择一固定平面作为基准,安装一平行板,所述平行板放置于一激光源下方,所述平行板平行且高于所述固定平面,以所述平行板为基准,校准所述激光源的焦平面,所述激光源在预设范围内转动,确保所述激光源的焦点均落在平行板上;校准激光打印产品的打印位置的尺寸精度,确定激光打印位置在所述平行板的表面位置,在所述平行板上表面激光打印的各个坐标位置;以所述固定平面校准刮刀,确认所述刮刀与所述固定平面之间的高度,以确定刮刀与打印位置的高度。可以保证刮刀下表面铺粉所形成的加工面与激光焦点面高度重合,保证高精度生产的可重复性与稳定。
6
EP3778191A1
POWDER BED FUSED MOLDED OBJECT AND METHOD FOR PRODUCING SAME
Publication/Patent Number: EP3778191A1 Publication Date: 2021-02-17 Application Number: 19774657.1 Filing Date: 2019-03-27 Inventor: Hagiwara, Masashi   Kimura, Yusei   Assignee: Aspect Inc.   IPC: B29C64/153 Abstract: Provided are a powder bed fusion model having improved model strength and a method of fabricating the same. A step of applying a laser beam to a layer of a resin powder (8) includes: applying the laser beam with a first energy to a modeling area (mai) in the first layer of the resin powder from the bottom among n layers of the resin powder; in the modeling area (ma2, ma3, man-2, man-1) in each of the second to (n - 1)-th layers of the resin powder, applying the laser beam with the first energy to a projecting portion (PA2, PA3, PAn-1) projecting outward from at least one of the modeling areas in the vertically adjacent layers of the resin powder and to an overlapping portion (OA2, OA3, OAn-1) overlapping the modeling areas in the adjacent layers of the resin powder, lying on the inner side of the projecting portion, and having at least a width equal to the thickness of a layer of the resin powder, and applying the laser beam with a second energy lower than the first energy to a center portion on the inner side of the projecting portion and the overlapping portion; and applying the laser beam with the first energy to the modeling area (man) in the n-th layer of the resin powder.
7
CN112388973A
用于增材制造的等离子体处理粉末
Publication/Patent Number: CN112388973A Publication Date: 2021-02-23 Application Number: 202010760052.4 Filing Date: 2020-07-31 Inventor: N·k·辛哈   O·普拉卡什   Assignee: 波音公司   IPC: B29C64/153 Abstract: 公开了一种用于增材制造的等离子体处理粉末。形成适于在增材制造工艺中使用的材料的示例性实施例包括以下操作:将第一聚合物粉末暴露于第一等离子体,从而形成胺官能化粉末;将第二聚合物粉末暴露于第二等离子体,从而形成环氧官能化粉末;并且将胺官能化粉末与环氧官能化粉末组合,以形成前体材料。随后,在增材制造工艺中对前体材料进行加热,以形成结构,其中对前体材料的加热使得在第一聚合物粉末与第二聚合物粉末之间形成共价化学键。
8
CN112351847A
使用壁和保持器减少粉末床尺寸的增材制造的系统和方法
Substantial Examination
Publication/Patent Number: CN112351847A Publication Date: 2021-02-09 Application Number: 201980038887.4 Filing Date: 2019-06-13 Inventor: 迈克尔·埃文斯·格拉哈姆   托马斯·查尔斯·阿德考克   约翰·约瑟夫·小马德隆   约翰·布罗德斯·小迪亚顿   Assignee: 通用电气公司   IPC: B22F3/105 Abstract: 提供一种制造部件(24)的方法。该方法包括将颗粒(45)沉积到构建平台(38)上。该方法还包括分布该颗粒(45)以形成构建层(44)。该方法还包括操作固结装置(14)以沿着扫描路径(40)固结颗粒(45)中的第一多个颗粒(104)以形成部件(24)。部件(24)包括与构建平台(38)间隔开的顶表面(102)和外表面(106)。外表面(106)在构建平台(38)和顶表面(102)之间延伸,并且外表面(106)的至少一部分面对构建平台(38)的基本上无颗粒的区域(103)。
9
EP3760414A1
METHOD OF WELDING ADDITIVELY MANUFACTURED THERMOPLASTICS
Publication/Patent Number: EP3760414A1 Publication Date: 2021-01-06 Application Number: 19215214.8 Filing Date: 2019-12-11 Inventor: Brown, Ricardo O.   Assignee: Hamilton Sundstrand Corporation   IPC: B29C65/08 Abstract: A method of forming a component includes additively manufacturing a first subcomponent (12), the first subcomponent including a first polymer material with a first porosity. The method further includes mating the first subcomponent with a second subcomponent (14) and ultrasonically welding the first subcomponent to the second subcomponent at a weld frequency. The first porosity can be 5% or less.
10
US2021008798A1
ENERGY EMITTING APPARATUSES FOR BUILD MATERIAL LAYERS
Publication/Patent Number: US2021008798A1 Publication Date: 2021-01-14 Application Number: 16/505,503 Filing Date: 2019-07-08 Inventor: Barnes, Arthur H.   Winters, William   Fredrickson, Daniel   Assignee: Hewlett-Packard Development Company, L.P.   IPC: B29C64/264 Abstract: According to examples, an apparatus may include a back panel to absorb energy and an energy emitter to supply energy onto a build material layer. The energy emitter may include an energy emitting element and an outer tube. In addition, a reflective element may be provided on a portion of the outer tube facing the back panel to direct energy away from the back panel. The apparatus may also include a transparent panel, in which energy from the energy emitter may be emitted through the transparent panel and onto the build material layer.
11
EP3775001A1
METHOD FOR PRODUCING A POPULATION OF PARTICLES OF POLYETHYLENE TEREPHTHALATE OR POLYBUTYLENE TEREPHTHALATE OR OF A COPOLYMER COMPRISING PET AND/OR PBT
Publication/Patent Number: EP3775001A1 Publication Date: 2021-02-17 Application Number: 19711943.1 Filing Date: 2019-03-26 Inventor: Dechet, Maximilian Alexander   Kloos, Stephanie   Schmidt, Jochen   Peukert, Wolfgang   Assignee: Friedrich-Alexander-Universität Erlangen-Nürnberg   IPC: C08J3/14
12
US10919225B2
Inlet for build material container
Publication/Patent Number: US10919225B2 Publication Date: 2021-02-16 Application Number: 16/088,620 Filing Date: 2016-10-27 Inventor: Chanclon, Fernandez Ismael   Cabanes, Jaime   Jones, Poppescou Ernesto Alejandro   Assignee: Hewlett-Packard Development Company, L.P.   IPC: B29C64/255 Abstract: Examples of an inlet to enable a forced air flow to enter a build material container in a 3D additive manufacturing system are described. In one case, the inlet has a structure having an inner face and an outer face forming at least one aperture through the structure through which forced air flows in use. The inlet has a longitudinal axis and the inner face and outer face are non-aligned along at least one axis which passes through each of inner face and the outer face and is substantially parallel to the longitudinal axis.
13
CN112384359A
加层制造方法和制品
Public
Publication/Patent Number: CN112384359A Publication Date: 2021-02-19 Application Number: 201980044179.1 Filing Date: 2019-06-27 Inventor: 让-路西·瑞法特   延斯·艾克勒   蒂洛·若姆霍夫   布赖恩·d·格斯   布赖恩·a·舒克拉   亚历山大·j·库格尔   麦肯·吉沃特   迈克尔·c·哈珀   Assignee: 3M创新有限公司   IPC: B29C64/245 Abstract: 本发明公开了一种优选地使用选择性激光烧结来制造固体制品的加层制造方法,该方法包括将粉末的层施加到加工室中的固体基底上,该粉末包含至少一种粉末状(共)聚合物;将粉末层熔合到固体基底上;随后沉积粉末的连续层,其中在粉末的后续层的沉积之前选择性地熔合每个连续层以便形成制品。在一些实施方案中,该粉末还包含硬度大于或等于氧化铝的硬度的磨料颗粒。
14
US2021039314A1
NOZZLE AND ADDITIVE MANUFACTURING APPARATUS
Publication/Patent Number: US2021039314A1 Publication Date: 2021-02-11 Application Number: 17/072,227 Filing Date: 2020-10-16 Inventor: Ohno, Hiroshi   Tsuno, Satoshi   Sasaki, Mitsuo   Yamada, Tomohiko   Shiomi, Yasutomo   Fujimaki, Shimpei   Assignee: Technology Research Association for Future Additive Manufacturing   Kabushiki Kaisha Toshiba   Toshiba Kikai Kabushiki Kaisha   IPC: B29C64/209 Abstract: A nozzle according to one embodiment has an inner surface and an outer surface, and is provided with a first passage through which an energy ray passes, and a second passage that is provided between the inner surface and the outer surface, and through which powder and fluid pass. The second passage includes a second open end on one end thereof in a first direction. A first surface that is one of the inner surface and the outer surface includes a first edge on one end thereof in the first direction. A second surface that is the other one of those includes a second edge on one end thereof in the first direction, and is distanced from the first edge toward the first direction. The fluid ejected from the second open end flows along the second surface, and separates at the second edge.
15
CN112192838A
一种应用可变焦点技术的增材制造位置测量设备、位置测量方法及增材制造方法
Substantial Examination
Publication/Patent Number: CN112192838A Publication Date: 2021-01-08 Application Number: 202011070864.2 Filing Date: 2020-10-09 Inventor: 不公告发明人   Assignee: 镭脉工业科技(上海)有限公司   IPC: B29C64/153 Abstract: 本发明提供了一种应用可变焦点技术的增材制造位置测量设备、位置测量方法及增材制造方法,可以在3D打印准备阶段及打印过程中均可实现对粉末高度以及零件高度的检测和精度控制,及时发现问题,修复问题,对于尝试多次修复后仍无法满足条件的,可以直接暂定打印,以实现降低产品报废率,提高生产效率,降低成本。
16
CN212446345U
一种三维打印基板
Grant
Publication/Patent Number: CN212446345U Publication Date: 2021-02-02 Application Number: 202020724329.3 Filing Date: 2020-05-06 Inventor: 何彦兵   吉勇旭   卢星   彭韬   张伟   Assignee: 昆明七零五所科技发展有限责任公司   IPC: B29C64/245 Abstract: 本实用新型公开了一种三维打印基板,具有,基座,支持推板,激光打印板,保护层,其中,支持推板紧贴于所述基座上表面,保护层紧贴于基座的下表面,激光打印板置于所述支持推板之上,支持推板具有空腔,空腔开口正对所述基板表面,并且与基板形成密闭的第一空间,其中处于所述第一空间内部的基板表面上具有凸台结构,凸台结构的外缘具有圆弧台阶,在凸台结构的中心区域具有第二空间,第二空间可容纳至少2个钢珠,此外凸台结构的外缘和第一空间的距离为钢珠直径,本实用新型三维打印基板,采用内部装置进行限位在水平移动中可以大幅减小不同部件中位移偏差,增加三维打印工艺精度。
17
EP3271140B1
3D PRINTINGSYSTEM AND METHOD
Publication/Patent Number: EP3271140B1 Publication Date: 2021-02-17 Application Number: 15726931.7 Filing Date: 2015-05-29 Inventor: Sanz, Ananos Santiago   Sanz, Ananos Isabel   Culubret, Sergi   Assignee: Hewlett-Packard Development Company, L.P.   IPC: B29C64/153
18
EP3259087B1
SYSTEM FOR MANUFACTURING THREE-DIMENSIONAL OBJECTS
Publication/Patent Number: EP3259087B1 Publication Date: 2021-01-20 Application Number: 16752741.5 Filing Date: 2016-02-18 Inventor: Kniola, Robert   Lundgren, Henrik   Assignee: Wematter AB   IPC: B22F3/105
19
CN112223752A
一种3D打印机粉料回收装置
Substantial Examination
Publication/Patent Number: CN112223752A Publication Date: 2021-01-15 Application Number: 202011011327.0 Filing Date: 2020-09-23 Inventor: 王伟   陈建华   王彦锋   金兴江   苗轩   朱旭峰   Assignee: 浙江精功机器人智能装备有限公司   IPC: B29C64/357 Abstract: 本发明公开了一种3D打印机粉料回收装置,包括横截面呈圆弧形的收集罩、固定设置在收集罩两端的侧板、转动设置在收集罩内的柱形刷以及设置在侧板上且用于驱动柱形刷转动的电机,收集罩与两端的侧板之间形成收集口,柱形刷的一侧延伸至收集口外,通过柱形刷的转动可以将接触到的粉料扫入收集罩内,扫入收集罩内的粉料被吸力吸入连接管内并通过过滤装置进行收集,操作简单,实现高效的粉料回收;收集罩的外壁顶部设置有防溅射装置,防溅射板通过调节可以与柱形刷的刷毛顶部接触,可以防止柱形刷在转动时将部分粉料从收集口甩出;在清理和收集平面上的粉料时,延伸板可以起到铲粉的作用,使粉料收集更加方便。
20
US2021016498A1
OPTIMISATION OF THE SUPPORTS FOR THE ADDITIVE MANUFACTURING OF A COMPONENT WITH A RECESS
Publication/Patent Number: US2021016498A1 Publication Date: 2021-01-21 Application Number: 17/040,235 Filing Date: 2019-03-19 Inventor: Ovaere, Nicolas   Bunel, Jacques Marcel Arthur   Gricourt, Thomas   Somazzi, Paul André   Zambelli, Sylvain   Assignee: SAFRAN AIRCRAFT ENGINES   IPC: B29C64/153 Abstract: A method for obtaining, by additive manufacture, a component including at least one recess, this method including: a step of forming, by additive manufacture, a one-piece blank component, in which the at least one recess contains a support including a core in the form of a block of material and cellular elements that connect the core to the recess; and a step of detaching the support from the rest of the blank component in order to expose the recess.
Total 315 pages