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1
CN212266703U
一种适用于增材制造装备的惰性气体注入装置
Grant
Publication/Patent Number: CN212266703U Publication Date: 2021-01-01 Application Number: 202020435946.1 Filing Date: 2020-03-30 Inventor: 李道杰   杨凯   于妍   朱岩   丁亮   罗汉   余里成   刘萌   Assignee: 湖南云箭集团有限公司   IPC: B29C64/371 Abstract: 本实用新型涉及增材制造领域,更具体地涉及到一种适用于增材制造装备的惰性气体注入装置。所述惰性气体注入装置包括气源处理单元、气管和注入单元,所述气管一端连接气源处理单元,另一端连通注入单元。本实用新型提供一种适用于增材制造装备的惰性气体注入装置,可最大程度上控制注入气体对成型腔温场的波动,降低了制件过程中发生枕形形变的可能性;另外,所述惰性气体注入装置可有效降低气流罩内部积尘现象,最大程度地避免因气流冲击引起的局部扬尘对环境的影响,装配操作简单,制造加工经济;另外,申请人提供的惰性气体注入装置对温场敏感和温场不敏感的材料均适用。
2
US2021008796A1
ADDITIVE MANUFACTURING SYSTEM
Publication/Patent Number: US2021008796A1 Publication Date: 2021-01-14 Application Number: 16/088,623 Filing Date: 2017-04-24 Inventor: Zamorano, Juan Manuel   Trenchs, Magana Albert   Ortega, Estornel Luis Angel   Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.   IPC: B29C64/176 Abstract: A method and system for causing an additive manufacturing system to print objects are described herein. A controller (110) of an additive manufacturing system (100) that comprises a build unit (120) and the controller (110) is arranged to receive print data defining an object to be printed by the additive manufacturing system (100). The controller (110) is arranged to cause the additive manufacturing system (100) to print a further object according to the modified print data, wherein the modified print data is determined on the basis of the print data.
3
CN212352917U
一种同轴送粉激光的气体保护装置
Grant
Publication/Patent Number: CN212352917U Publication Date: 2021-01-15 Application Number: 201922263662.9 Filing Date: 2019-12-16 Inventor: 程四华   穆相林   吕迺冰   孙齐松   晁月林   徐士新   周洁   王晓晨   佟倩   Assignee: 首钢集团有限公司   IPC: B29C64/153 Abstract: 本实用新型公开了一种同轴送粉激光的气体保护装置,包括变形保护罩、平台保护罩、进气管、出气管和内塞底座,变形保护罩、平台保护罩和内塞底座从上至下依次连接,变形保护罩和平台保护罩的内部形成一个容纳腔体,激光头可拆卸设置在变形保护罩的上部,且激光头的一端插设在容纳腔体内,进气管和出气管均插设在平台保护罩上,在激光头移动时,变形保护罩可以发生柔性形变,最大限度减少对激光头移动精度影响。同时,进气管和出气管均插设在平台保护罩上,可以充入氩气保护气体,对激光头实施保护,具备很好的实用性。
4
US2021001557A1
Method for Producing Three-Dimensional Shaped Product
Publication/Patent Number: US2021001557A1 Publication Date: 2021-01-07 Application Number: 16/833,173 Filing Date: 2020-03-27 Inventor: Amaya, Koichi   Yoshida, Mitsuyoshi   Tomita, Seiichi   Takizawa, Akira   Nishikawa, Akishige   Assignee: Matsuura Machinery Corporation   IPC: B29C64/371 Abstract: A method for producing a three-dimensional shaped product that employs a shaping method based on dispersion of powder by a squeegee and irradiation onto a powder layer with a laser beam or electron beam, includes the following steps: 1. Setting an upper limit value and lower limit value for the amount of circulation passing through an anemometer, and an adjusting value within this range; 2. Measuring the amount of circulation and effecting control as follows: (1) When the measured value is between the upper limit value and lower limit value, the rotational speed of the blower fan is maintained, and (2) When the measured value has fallen below the lower limit value due to clogging of a filter, the rotational speed of the fan is increased and the rotational speed is selected at the stage where the measured value has reached the adjusting value, and the rotational speed is maintained.
5
EP3269473B1
ADDITIVE MANUFACTURING DEVICE UTILIZING EB-LASER COMPOSITE SCAN
Publication/Patent Number: EP3269473B1 Publication Date: 2021-01-06 Application Number: 16761103.7 Filing Date: 2016-03-09 Inventor: Lin, Feng   Zhou, Bin   Guo, Chao   Ge, Wenjun   Zhang, Lei   Assignee: Tsinghua University   IPC: B22F3/105
6
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
7
NL2021323B1
Method and apparatus for producing an object by means of additive manufacturing
Publication/Patent Number: NL2021323B1 Publication Date: 2020-01-24 Application Number: 2021323 Filing Date: 2018-07-17 Inventor: Mark, Herman Else Vaes   Ronnie, Herman Anna Hensen   Assignee: ADDITIVE INDUSTRIES B.V.   IPC: B29C64/371 Abstract: Method for producing an object by means of additive manufacturing, wherein said method comprises the steps of: - receiving, in a process chamber, a bath of material, wherein a surface level of said bath of material defines an object working area; - solidifying, by a solidifying device, a selective layer-part of said material on said surface level; - controlled oxidisation, of waste particles originating from said solidifying of said material, by controlling an oxygen level, such that oxidised waste particles are obtained and ignition of said waste particles is avoided. Apparatus for producing an object by means of additive manufacturing.
8
WO2020017952A1
METHOD AND APPARATUS FOR PRODUCING AN OBJECT BY MEANS OF ADDITIVE MANUFACTURING
Publication/Patent Number: WO2020017952A1 Publication Date: 2020-01-23 Application Number: 2019050373 Filing Date: 2019-06-18 Inventor: Vaes, Mark Herman Else   Hensen, Ronnie Herman Anna   Assignee: ADDITIVE INDUSTRIES B.V.   IPC: B29C64/371 Abstract: Method for producing an object (2) by means of additive manufacturing, wherein said method comprises the steps of: receiving, in a process chamber (3), a bath of material (4), wherein a surface level (L) of said bath of material (4) defines an object working area; solidifying, by a solidifying device (7), a selective layer-part of said material (4) on said surface level (L); controlled oxidisation, of waste particles originating from said solidifying of said material (4), by controlling an oxygen level, such that oxidised waste particles are obtained and ignition of said waste particles is avoided. Apparatus (1) for producing an object (2) by means of additive manufacturing.
9
WO2020018083A1
THREE-DIMENSIONAL PRINTING
Publication/Patent Number: WO2020018083A1 Publication Date: 2020-01-23 Application Number: 2018042580 Filing Date: 2018-07-18 Inventor: Kasperchik, Vladek   Mckinnell, James   Shaarawi, Mohammed S.   Assignee: Hewlett-Packard Development Company, L.P.   IPC: B33Y70/00 Abstract: A three-dimensional printing kit can include a binder fluid, a gas-precursor fluid, and a particulate build material including metal particles. The binder fluid can include latex particles and an aqueous liquid vehicle. The gas-precursor fluid can include carbon black pigment dispersed in a second aqueous liquid vehicle.
10
CN212194224U
用于密封舱的吹气装置及气体对流装置
Grant
Publication/Patent Number: CN212194224U Publication Date: 2020-12-22 Application Number: 202020355887.7 Filing Date: 2020-03-19 Inventor: 霍兰田   杨加兴   Assignee: 四川天府珞埔三维科技有限公司   IPC: B29C64/153 Abstract: 本实用新型公开了一种用于密封舱的吹气装置及气体对流装置。包括阻风板、气管连接盒和气管接头,阻风板上开设有细密小孔;阻风板设置于气管连接盒连接进气口的一侧,气管接头连接于气管连接盒上。气体对流装置的进气机构,或者还包括其出气机构的结构与吹气装置的结构相同。本设计能够对吹入的惰性气体进行削弱和匀化,从而避免进入到密封舱的气体引起扬尘现象,装置气密性强,气体对流装置不限定进、出气方向,使用灵活。
11
US2020406533A1
LAMINATION MOLDING APPARATUS
Publication/Patent Number: US2020406533A1 Publication Date: 2020-12-31 Application Number: 16/848,816 Filing Date: 2020-04-14 Inventor: Muranaka, Katsutaka   Assignee: SODICK CO., LTD.   IPC: B29C64/147 Abstract: A lamination molding apparatus includes a chamber that covers a molding region, an irradiator that irradiates a material layer formed in the molding region with a laser beam or an electron beam and forms a solidified layer, a supply port that supplies an inert gas to the chamber, a discharge port that discharges the inert gas from the chamber, an inert gas supplier which is connected to the supply port and supplies the inert gas to the chamber, a fume collector, and an oxygen concentration adjustor. The fume collector has an inlet, a charging section, a collecting section, and an outlet. The oxygen concentration adjustor is connected between the discharge port and the charging section and supplies, to the fume collector, an adjusting gas having an oxygen concentration higher than an oxygen concentration of the inert gas which is discharged from the discharge port.
12
EP3599082A1
APPARATUS FOR ADDITIVELY MANUFACTURING THREE-DIMENSIONAL OBJECTS
Publication/Patent Number: EP3599082A1 Publication Date: 2020-01-29 Application Number: 18186172.5 Filing Date: 2018-07-27 Inventor: Pröbstle, Martin   Appel, Peter   Mahr, Jochen   Strößner, Johannes   Rommel, Daniel   Assignee: Concept Laser GmbH   IPC: B29C64/371 Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2, 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, which apparatus (1) comprises a stream generating device (6) that is adapted to generate a gas stream (7, 7') inside a process chamber (5) of the apparatus (1), wherein the stream generating device (6) is adapted to control at least one parameter relating to a composition of the gas stream (7, 7').
13
US2020276762A1
ADDITIVE MANUFACTURING DEVICE AND MANUFACTURING METHOD FOR ADDITIVE-MANUFACTURED OBJECT
Publication/Patent Number: US2020276762A1 Publication Date: 2020-09-03 Application Number: 16/759,516 Filing Date: 2018-10-29 Inventor: Yamamoto, Naoya   Assignee: IHI CORPORATION   IPC: B29C64/371 Abstract: An additive manufacturing device includes a molding unit including a molding tank accommodating a manufactured object and forming the manufactured object in the molding tank, a pressure vessel accommodating the molding unit, and a gas supply unit connected to the pressure vessel, supplying a gas into the pressure vessel, and configured to pressurize an inner portion of the pressure vessel.
14
US2020368968A1
GAS CONCENTRATION METER, CONTROL METHOD OF GAS CONCENTRATION METER, LAMINATION MOLDING APPARATUS, AND CONTROL METHOD OF OXYGEN CONCENTRATION METER FOR LAMINATION MOLDING APPARATUS
Publication/Patent Number: US2020368968A1 Publication Date: 2020-11-26 Application Number: 16/841,884 Filing Date: 2020-04-07 Inventor: Muranaka, Katsutaka   Assignee: Sodick Co., Ltd.   IPC: B29C64/343 Abstract: A gas concentration meter includes a first gas concentration detection sensor capable of detecting at least a gas concentration in a first concentration range, a second gas concentration detection sensor capable of detecting at least a gas concentration in a second concentration range, and a control unit. An upper limit value of the second concentration range is lower than an upper limit value of the first concentration range, and a lower limit value of the second concentration range is lower than a lower limit value of the first concentration range. The control unit is configured to output either the lower limit value of the first concentration range or the upper limit value of the second concentration range as an indication value when an output signal of the first gas concentration detection sensor corresponds to a gas concentration lower than the lower limit value of the first concentration range.
15
EP3755520A1
THREE-DIMENSIONAL PRINTING
Publication/Patent Number: EP3755520A1 Publication Date: 2020-12-30 Application Number: 18927184.4 Filing Date: 2018-07-18 Inventor: Kasperchik, Vladek   Shaarawi, Mohammed S.   Mckinnell, James   Assignee: Hewlett-Packard Development Company, L.P.   IPC: B29C64/165
16
US2020398491A1
CHANGING THE GAS CONTENT OF A DEVICE
Publication/Patent Number: US2020398491A1 Publication Date: 2020-12-24 Application Number: 16/607,860 Filing Date: 2018-03-14 Inventor: Mansell, Rhys   Murciego, Rodriguez Pablo Antonio   Alejandre, Femandez Ignacio   Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.   IPC: B29C64/371 Abstract: A method of changing the gas content of a device (100) which comprises a first chamber (110). The method comprises: arranging the device in a first configuration, wherein the first chamber has a first internal volume; providing a flow of a first gas to the first chamber so that the gas content of the first chamber is at least partially changed; transitioning the device from the first configuration to a second configuration, wherein the first chamber has a second internal volume which is grater than the first internal volume.
17
US2020122397A1
APPARATUS FOR ADDITIVELY MANUFACTURING THREE-DIMENSIONAL OBJECTS
Publication/Patent Number: US2020122397A1 Publication Date: 2020-04-23 Application Number: 16/294,501 Filing Date: 2019-03-06 Inventor: Moritz, Bernhard   Assignee: CONCEPT LASER GMBH   IPC: B29C64/371 Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective consolidation of layers of a build material (3) which can be consolidated by means of an energy source (4), which apparatus (1) comprises a stream generating device (6) adapted to generate a gas stream (7) in a process chamber (8) of the apparatus (1) and an application device (18) comprising an application unit (19) with an application element (20) that is moveable across a build plane (14) of the apparatus (1) for applying build material (3) in the build plane (14), wherein the application device (18) comprises at least one stream guiding unit (22) that is adapted to guide the gas stream (7) along a streaming path (26).
18
US2020180225A1
SYSTEMS AND METHODS FOR PREVENTING OXYGEN INHIBITION OF A LIGHT-INITIATED POLYMERIZATION REACTION IN A 3D PRINTING SYSTEM USING INERT GAS
Publication/Patent Number: US2020180225A1 Publication Date: 2020-06-11 Application Number: 16/703,417 Filing Date: 2019-12-04 Inventor: Zenou, Michael   Gilan, Ziv   Liptz, Daniel   Shai, Yuval   Assignee: IO Tech Group Ltd.   IPC: B29C64/264 Abstract: Systems and methods that prevent oxygen inhibition of a light-initiated polymerization reaction by purging the oxygen from reaction surfaces using inert gas flow. In some embodiments, oxygen is purged using a gas diffusion system that introduces, via a diffuser, an inert gas into a workspace between a UV light source and a UV curable layer of a workpiece. The diffuser may be made of a transparent or diffuse material to allow UV light to pass through it, and includes an array of micro-holes for the gas to pass through towards the workpiece. The inert gas flow may be heated to maintain a desired and uniform reaction temperature.
19
CN210759279U
3D打印补液机构
Grant
Publication/Patent Number: CN210759279U Publication Date: 2020-06-16 Application Number: 201921365546.1 Filing Date: 2019-08-20 Inventor: 石武   Assignee: 东莞市亿兴旺三维科技有限公司   IPC: B29C64/30 Abstract: 本实用新型涉及3D打印领域,公开了一种3D打印补液机构,包括补液装置和抽真空装置,所述补液装置内部设置有容纳腔,所述容纳腔具有开口,所述容纳腔的开口位于所述补液装置底端部的端面上,所述抽真空装置的吸气端与所述容纳腔直接相通或间接相通,所述容纳腔内部安装有多个分隔壁,所述分隔壁之间存在间隙,且所述分隔壁靠近所述开口的端面紧靠所述补液装置底端部的端面。通过补液装置的作用,快速补充打印液到打印工件表面。
20
EP3753706A1
METHOD AND DEVICE FOR CREATING A GAS STREAM DURING THE ADDITIVE MANUFACTURING OF A PRODUCT IN A POWDER BED
Publication/Patent Number: EP3753706A1 Publication Date: 2020-12-23 Application Number: 20167447.0 Filing Date: 2020-03-31 Inventor: Mercelis, Peter   Assignee: Common Sense Engineering and Consult B.V.B.A.   IPC: B29C64/153 Abstract: Device and method for the layered manufacture of a three-dimensional product (1) with a recess (3), in which successive powder layers are applied to a building surface (15) above a building platform (4), wherein this building platform (4) extends in a space between a tube wall (6) of a building tube (5) and an insert provided therein (9), wherein a beam of rays (18) is made to impinge on each powder layer and this beam (18) is moved across the powder layer to form successive layers of said product (1) above the building platform (4), so that the insert (9) extends in said recess (3). According to the invention, a gas stream (24) is generated above the building surface (15), extending above said space, wherein it is made sure that this gas stream (24) crosses said beam of rays (18) wherein flue gases formed while the beam of rays (18) strikes said powder layer, are discharged through this gas stream (24).