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1 US2020238378A1
ENHANCED RECOATER EDGES
Publication/Patent Number: US2020238378A1 Publication Date: 2020-07-30 Application Number: 16/258,121 Filing Date: 2019-01-25 Inventor: Binek, Lawrence   Morganson, David W.   Assignee: Hamilton Sundstrand Corporation   IPC: B22F3/105 Abstract: An additive manufacturing device includes a build platform. A recoater is operatively connected to the build platform to move relative to the build platform to coat unfused powder onto a build on the build platform. The recoater includes a recoater mount defining a length-wise receptacle therein, and a recoater blade seated in the receptacle. A blade reel system is operatively connected to the recoater to replace the recoater blade in the receptacle during a build on the build platform.
2 CN107000059B
造形装置及造形方法
Publication/Patent Number: CN107000059B Publication Date: 2020-04-17 Application Number: 201480083369.1 Filing Date: 2014-11-14 Inventor: 柴崎祐一   Assignee: 株式会社尼康   IPC: B22F3/105 Abstract: 造形装置,其具备:光束造形系统(500),具有包含射出光束的聚光光学系(82)的光束照射部(520)、以及供给被来自前述光束照射部(520)的光束照射的造形材料的材料处理部(530);以及控制装置,根据形成于对象面上的三维造形物的3D数据控制工件的移动系统与光束造形系统(500),以一边使工件(W)(或载台(12))上的对象面(TAS)与来自光束照射部(520)的光束相对移动、一边从材料处理部(530)供给造形材料据以对对象面上的目标部位(TA)施加造形。又,能变更在聚光光学系的射出面侧的既定面(MP)内的光束的强度分布。因此,能将加工精度良好的三维造形物形成于对象面上。
3 US2020360993A1
METHOD FOR MANUFACTURING AN ALUMINIUM ALLOY PART BY ADDITIVE MANUFACTURING FROM A MIXTURE OF POWDERS CONTAINING YTTRIA-STABILIZED ZIRCONIA
Publication/Patent Number: US2020360993A1 Publication Date: 2020-11-19 Application Number: 16/872,469 Filing Date: 2020-05-12 Inventor: Opprecht, Mathieu   Garandet, Jean-paul   Roux, Guilhem   Soulier, Mathieu   Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES   IPC: B22F3/105 Abstract: Method for manufacturing an aluminium alloy part by additive manufacturing comprising a step during which a layer of a mixture of powders is locally melted and then solidified, characterised in that the mixture of powders comprises: first particles comprising at least 80% by mass of aluminium and up to 20% by mass of one or more additional elements, and second yttria-stabilized zirconia particles, the mixture of powders comprising at least 1.5% by volume of second particles.
4 CN109317668B
三维造型方法
Valid
Publication/Patent Number: CN109317668B Publication Date: 2020-10-13 Application Number: 201710640334.9 Filing Date: 2017-07-31 Inventor: 天谷浩一   石本孝介   山田岳志   Assignee: 株式会社松浦机械制作所   IPC: B22F3/105 Abstract: 本发明的课题是提供一种能够通过迅速检测到烧结不良而防止产生缺陷三维造型物的三维造型方法,该方法包括粉末层的形成步骤和通过激光束或电子束将所述粉末层烧结的烧结步骤,通过以下操作能够达成上述课题:程序a,测定在各烧结步骤中照射的激光束或电子束的反射强度或除了上述激光束以外的光的反射强度;程序b,在单位时间中检测到程序a的反射强度为基准范围内的情况下,指示继续进行下一单位时间的烧结或之后的粉末层形成步骤;程序c,在单位时间中检测到程序a的反射强度脱离基准范围的情况下,判断为发生了烧结不良,并指示中止下一单位时间内的烧结或之后的粉末层形成步骤。
5 CN111922337A
镁合金3D打印装置控制系统
Public
Publication/Patent Number: CN111922337A Publication Date: 2020-11-13 Application Number: 202010904814.3 Filing Date: 2020-09-01 Inventor: 石海   安国进   黄斌   钟智   王长斌   Assignee: 贵州航天风华精密设备有限公司   IPC: B22F3/105 Abstract: 本发明提供了一种镁合金3D打印装置控制系统,包括控制器,控制器输入端分别连接有氧含量检测器,压力检测器,输出端分别连接有继电器、补气阀、排气阀,控制器接收氧含量检测器、压力检测器输入的信号,向继电器发出接通或断开的控制信号,以及向补气阀、排气阀发出增大或减小开度的控制信号。通过实时监测3D打印机内的氧含量、压力环境,及时发出断电、调节压力的反馈信号,支持3D打印装置的长时间安全运行。另外,控制器输入端还连接有补气流量计、排气流量计或循环流量计,用于反馈控制3D打印机进气、出气流量。
6 US2020189001A1
Apparatus and Method Based on Selective Laser Melting Technique for Preparing Functionally Gradient Material
Publication/Patent Number: US2020189001A1 Publication Date: 2020-06-18 Application Number: 16/800,688 Filing Date: 2020-02-25 Inventor: Zhang, Baichen   Zhang, Lin   Ren, Shubin   Qin, Mingli   Qu, Xuanhui   Assignee: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING   IPC: B22F3/105 Abstract: A selective laser melting technology-based apparatus for preparing a gradient material, comprising a laser scanning array lens, and a powder storer, a powder mixer, a powder scraping plate, and a working platform that are provided in sequence from top to bottom; the powder storer is provided with two or more partitions; a bottom portion of the powder storer is provided with an outlet; the powder mixer is provided under the powder storer and is a horizontally provided rotational mixer; the powder scraping plate is disposed under the powder mixer; the working platform is provided under the powder scraping plate; the laser scanning array lens is provided on the working platform. The present invention further relates to a method for preparing a gradient material, comprising powder storing, powder scraping, powder mixing, powder laying, and printing. The method can guarantee the two-phase powder ratio in each layer of powder not change.
7 CN209953801U
一种热电材料专用的交流工频放电烧结设备
Valid
Title (English): An AC power frequency discharge sintering equipment for thermoelectric materials
Publication/Patent Number: CN209953801U Publication Date: 2020-01-17 Application Number: 201920550099.0 Filing Date: 2019-04-22 Inventor: 樊希安   胡晓明   罗自贵   罗凡   Assignee: 武汉科技大学   IPC: B22F3/105 Abstract: 本实用新型提供了一种热电材料专用的交流工频放电烧结设备,至少包括支架、模具、炉膛、液压机构、抽气装置以及充气装置,炉膛固定于支架内,液压机构包括液压缸、连接油管、活塞杆、上电极、上压头、下压头以及下电极;交流电源装置上设有电源输出端与电源输入端,输出端与输入端通过交流变压器相连接,输入端为三相交流电源输入,输出端为两相交流电源输出,输出端通过铜带与电极连接。本实用新型采用交流电流直接通电烧结技术,可以有效抵消帕尔帖效应,具有升温快,效率高,能耗低等优势,专用于热电材料的烧结。
8 CN111801186A
用于制造成型体的设备
Public
Publication/Patent Number: CN111801186A Publication Date: 2020-10-20 Application Number: 201980015972.9 Filing Date: 2019-02-25 Inventor: M·弗克莱   Assignee: 瑞利泽尔有限公司   IPC: B22F3/105 Abstract: 本发明涉及一种用于在处理室(8)中对材料粉末进行逐层重熔以形成成型体(2)的设备。该设备包括用于层状结构的载体(14)和辐照装置(40、42),辐照装置用于根据成型体(2)的与待制造的成型体层(7)相关联的横截面区域来辐照粉末。设置有包括平滑滑动件(15)的粉末层平整和平滑装置(13),用于使载体(14)上相应量的材料粉末均匀化,并且设置有包括吸嘴(35)的抽吸装置,用于抽吸处理烟气。吸嘴(35)通过电机驱动在处理室(8)中可移动。吸嘴耦接至平滑滑动件(15)用于共同移动,并且在共同移动期间可以在抽吸模式下工作,其中辐照装置(40、42)处于活动状态,用于对粉末进行辐照。
9 US2020078866A1
METHOD FOR MANUFACTURING METAL MEMBER
Publication/Patent Number: US2020078866A1 Publication Date: 2020-03-12 Application Number: 16/617,071 Filing Date: 2017-07-26 Inventor: Fujita, Hideo   Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA   IPC: B22F3/105 Abstract: A manufacturing method of a metal member includes manufacturing a metal three-dimensional manufactured object through additive manufacturing by layering and bonding a plurality of layers in a layering direction. The three-dimensional manufactured object includes the metal member including an overhang portion, and a plurality of supports that support the overhang portion and are integral with the metal member. Each of the supports includes a blade which is not in contact with the metal member and a column which is in contact with the metal member and extends in the layering direction from the blade toward the overhang portion.
10 CN211386900U
微波烧结装置
Valid
Publication/Patent Number: CN211386900U Publication Date: 2020-09-01 Application Number: 201922243867.0 Filing Date: 2019-12-13 Inventor: 李俊辉   齐会龙   高志开   耿金峰   孟垂舟   聂革   陈培培   Assignee: 新奥科技发展有限公司   IPC: B22F3/105 Abstract: 本实用新型提供了一种微波烧结装置,包括:保温层(10)、SiC圆环(20)以及坩埚(30),所述SiC圆环(20)位于所述保温层(10)内部、所述坩埚(30)位于所述SiC圆环(20)内部,所述保温层(10)开设有通向所述坩埚(30)的测温通道(1);所述SiC圆环(20)包括圆环状的SiC本体(21)和包覆在所述SiC本体(21)内表面和外表面的防护层(22)。通过在SiC本体外侧包覆防护层,能够有效地避免SiC本体在烧结反应中挥发Si元素,从而起到避免污染加热材料的效果。
11 US202001364A1
ULTRASONICALLY ASSISTED POWDER BED ADDITIVE MANUFACTURING
Publication/Patent Number: US202001364A1 Publication Date: 2020-01-02 Application Number: 20/191,644 Filing Date: 2019-06-17 Inventor: Short, Matthew A.   Assignee: Edison Welding Institute, Inc.   IPC: B22F3/105 Abstract: A powder bed fusion additive manufacturing system that includes a powder bed; a material powder, wherein the material powder includes individual grains; an apparatus for spreading the material powder across the powder bed in a layer-by-layer manner; and an ultrasonic device adapted to function in cooperation with the powder-spreading apparatus for compacting the material powder in each layer and distributing the individual grains in each layer of material powder in a substantially uniform manner.
12 US2020094321A1
ADDITIVE MANUFACTURE OF ANISOTROPIC RARE EARTH MAGNETS
Publication/Patent Number: US2020094321A1 Publication Date: 2020-03-26 Application Number: 16/139,952 Filing Date: 2018-09-24 Inventor: Li, Wanfeng   Liang, Feng   Degner, Michael W.   Assignee: Ford Global Technologies, LLC   IPC: B22F3/105 Abstract: A method includes depositing a layer of alloy particles including rare earth permanent magnet phase above a substrate, laser scanning the layer while cooling the substrate to melt the particles, selectively initiate crystal nucleation, and promote columnar grain growth in a same direction as an easy axis of the rare earth permanent magnet phase. The method also includes repeating the depositing and scanning to form bulk anisotropic rare earth alloy magnet with aligned columnar grains.
13 US2020246872A1
THREE-DIMENSIONAL LAMINATING AND SHAPING APPARATUS, CONTROL METHOD OF THREE-DIMENSIONAL LAMINATING AND SHAPING APPARATUS, AND CONTROL PROGRAM OF THREE-DIMENSIONAL LAMINATING AND SHAPING APPARATUS
Publication/Patent Number: US2020246872A1 Publication Date: 2020-08-06 Application Number: 16/664,591 Filing Date: 2019-10-25 Inventor: Oshima, Eiji   Assignee: KANTATSU CO., LTD.   IPC: B22F3/105 Abstract: A metal laminated and shaped object is shaped by optical shaping. A three-dimensional laminating and shaping apparatus includes a shaping stage as a place where a metal laminated and shaped object is shaped, a moving unit that moves the shaping stage, a supplier that supplies metal powder particles in a layer on a surface of the shaping stage, and a light irradiator that irradiates, with a laser beam, powder particles at a predetermined position among the powder particles supplied in the layer on the surface of the shaping stages. The light irradiator includes a laser diode that emits the laser beam, and an electromechanical mirror that reflects the laser beam and irradiates, with the laser beam, the metal powder particles at the predetermined position among the metal powder particles supplied in the layer on the surface of the shaping stage. The supplier supplies metal powder particles having a particle size of not more than 50 μm. The moving unit moves the shaping stage by one layer in a direction away from the light irradiator in accordance with the particle size.
14 CN108372355B
一种实现梯度材料制备的电子束熔丝增材制造装置及方法
Valid
Publication/Patent Number: CN108372355B Publication Date: 2020-07-17 Application Number: 201611184594.1 Filing Date: 2016-12-20 Inventor: 许海鹰   左从进   黄志涛   邢一思   桑兴华   Assignee: 中国航空制造技术研究院   IPC: B22F3/105 Abstract: 本发明公开了一种实现梯度材料制备的电子束熔丝增材制造装置及方法。用于实现当前3D打印技术及常规锻、铸方法难以实现的异质叠层金属结构、内埋特种材料零部件的加工制造。它包括电子枪、高压电源、真空室及真空泵组、主控制系统、选丝及送丝系统、送丝控制管理单元、电子枪运动工作台、成形零件带载工作台、电源控制系统、电子枪电磁控制系统、电子枪运动控制单元、工作台运动控制单元、机器视觉识别装置、图像处理单元、熔丝路径规划系统;该装置载丝种类多且量大,可以大幅提高异质叠层金属结构、内埋特种材料零部件加工制造的生产效率;电子束源根据熔化丝材的材质,实时调节输出功率,满足其熔化沉积成形的需求。
15 US202047251A1
IMMISCIBLE-INTERFACE ASSISTED DIRECT METAL DRAWING
Publication/Patent Number: US202047251A1 Publication Date: 2020-02-13 Application Number: 20/191,653 Filing Date: 2019-08-13 Inventor: Song, Xuan   He, Li   Assignee: University of Iowa Research Foundation   IPC: B22F3/105 Abstract: A method of three-dimensional printing of target material can include filling a receptacle with a matrix suspension comprising a powder matrix suspended in a first liquid. A second suspension can be extruded into the matrix suspension, where the second suspension can include a target powder suspended in a second liquid.
16 US202016657A1
SPATIAL POROSITY AND COMPOSITION CONTROL IN ADDITIVE MANUFACTURING
Publication/Patent Number: US202016657A1 Publication Date: 2020-01-16 Application Number: 20/191,651 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: B22F3/105 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.
17 CN111112613A
一种激光烧结设备工作腔用辅助降温装置
Under Examination
Publication/Patent Number: CN111112613A Publication Date: 2020-05-08 Application Number: 201911341586.7 Filing Date: 2019-12-24 Inventor: 江姣龙   黄华锋   樊子均   廖彬   Assignee: 安徽卓锐三维科技有限公司   IPC: B22F3/105 Abstract: 本发明公开了一种激光烧结设备工作腔用辅助降温装置,包括激光烧结设备工作平台以及固定在激光烧结设备工作平台上端的防护罩体,所述防护罩体的上端通过固定架固定安装有抽风机,所述抽风机的抽气端通过连接管连通有抽气组件,所述抽气组件嵌装于防护罩体的上端,且抽气组件的一端位于防护罩体的内部,所述防护罩体的内侧壁上对称焊接有两组卡块,所述卡块的内部设置有冷却组件。本装置能通过抽风机和抽气组件对工作腔内的空气抽出,使工作腔内部的空气循环,一定程度上能降低工作腔内部的空间的温度,而且通过具有导热性能的平板和散热片进一步对工作腔内部的空间降温,避免了铺粉仓内的粉末融化并且结块。
18 CN110181051B
一种定向洛伦兹力作用下的激光再制造窄隙填充方法
Valid
Publication/Patent Number: CN110181051B Publication Date: 2020-11-13 Application Number: 201910524631.6 Filing Date: 2019-06-18 Inventor: 王梁   夏洪超   姚建华   葛鸿浩   Assignee: 浙江工业大学   IPC: B22F3/105 Abstract: 本发明公开了一种定向洛伦兹力作用下的激光再制造窄隙填充方法,所述的方法为:(1)根据待修复工件的裂纹深度,采用机械加工方式在裂纹所在表面制作V型槽,去除整个开裂区域;(2)将电极的正负两极分别设置在待修复工件V型槽两端,将磁铁的两个磁极分别布置在所述待修复工件V型槽不同于电极侧的两侧,使得磁场方向与电流方向相正交;(3)在两个电极之间通入稳态直流电流,通过改变电流方向或磁场方向调节电流与磁场产生的洛伦兹力的方向与重力方向相同;(4)开启激光器,同时通过送粉器在激光光斑区域送入待填充的金属材料,熔融的金属自V型槽底部向上填充至填满整个V型槽区域,停止激光器、电场和磁场的作用,完成填充。
19 CN211939042U
一种粉末冶金铸压件脱胶的内置磁控管高真空微波脱胶炉
Valid
Publication/Patent Number: CN211939042U Publication Date: 2020-11-17 Application Number: 202020324146.2 Filing Date: 2020-03-16 Inventor: 胡俊旭   刘辉汉   何秋   Assignee: 株洲聚润合微波工业炉有限公司   IPC: B22F3/105 Abstract: 本实用新型公开了一种粉末冶金铸压件脱胶的内置磁控管高真空微波脱胶炉,包括炉体和产生微波的磁控管;炉体内设置有内炉壳,内炉壳的内部为炉内腔;磁控管包括发射微波的发射头、以及用于水冷循环的出水口和入水口;在内炉壳顶部中央上方的炉体上,开设有磁控管工作腔,在磁控管工作腔与炉内腔之间的内炉壳上开有上下相通的通孔;所述磁控管安装在磁控管工作腔内,其发射头从通孔向下插入且发射方向朝向炉内腔。其优点是:完全避免了外置磁控管造成的微波反射损失,显著降低了内炉壳的制作维护难度。同时,与外置磁控管相比,内置磁控管高真空微波脱胶炉无需安装波导管等引入装置,即节约了成本,也使得设备显得更加简洁。
20 US2020130057A1
METHOD FOR FORMING HORIZONTAL OVERHANGING STRUCTURE WITHOUT VERTICAL SUPPORT IN SELECTIVE LASER MELTING
Publication/Patent Number: US2020130057A1 Publication Date: 2020-04-30 Application Number: 16/726,851 Filing Date: 2019-12-25 Inventor: Zhi, Xinlei   Yuan, Zijun   Chen, Xiangdong   Yan, Zhaohua   Assignee: Intelligent Manufacturing Institute of Hefei University of Technology   IPC: B22F3/105 Abstract: A method for forming a horizontal overhanging structure without vertical support in selective laser melting, comprising: sequentially forming an initial layer, a repair layer and a conventional layer, wherein initial layer is printed by scanning at a speed set lower than the conventional speed using a laser spot in a defocused state, so that the Plateau-Rayleigh instability effect occurs in each track, to form an initial layer with a specific texture structure; repair layer is printed on upper surface of the initial layer by scanning at a speed set higher than conventional speed in a continuous-wave laser output mode using a laser spot in a focused state, and completes the transition from transition process parameter to conventional process parameters within the set number of processing layers; and conventional layer is printed on upper surface of repair layer using conventional process parameters, to form a horizontal overhanging structure without vertical support.