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公开(公告)号：WO2023001963A1
公开(公告)日：2023-01-26
申请号：PCT/EP2022/070488
申请日：2022-07-21
发明人： BOUMA, Harmen Willem , KOSTER, Tonnis Meindert , VRIES, DE, Johannes Franciscus , INANÇ, Bahri Sinan , ZULT, Jelle David , BARTELDS, Jan Teun , KUIPER-HARTMAN, Marloes Alexandra
IPC分类号： B29C64/118 , B29C64/393 , B33Y10/00 , B33Y50/02 , B33Y80/00
摘要： In a method for manufacturing a three dimensional object by extrusion based modelling, tracks of modelling material are deposited in slices by means of a printhead connected to a three dimensional positioning system. In each slice a plurality of first tracks of three- dimensional modelling material is deposited by the printhead under a first pressure, wherein the first tracks are spaced apart so as to leave a gap between them. A second track of three- dimensional modelling material is deposited by the printhead in each of the gaps between the deposited first tracks under a second pressure, which is higher than the first pressure, such that the gaps are filled entirely. A monolithic body is formed by depositing the modelling material slice by slice. In at least a body portion of the monolithic body a pattern of first tracks and second tracks is deposited, in which the number of tracks that is deposited is increased within at least a section of the slices by depositing at least one additional first track and at least one additional second track.
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公开(公告)号：WO2019206868A1
公开(公告)日：2019-10-31
申请号：PCT/EP2019/060304
申请日：2019-04-23
发明人： BRUGGEMAN, Thomas Jonathan , BRUGGEMAN, Adrianus , VOSS, Kevin Hendrik Jozef , GROEN, Klaas , TIMMER ARENDS, Johannes Hermannus , WOLBERS, Martijn Johannes , KUIT, Koendert Hendrik , SPEELMAN, Marald
IPC分类号： B29C64/209 , B29C64/118 , B29C64/20 , B33Y30/00
摘要： The invention relates to a system (100) for additive manufacturing, comprising at least one printhead assembly (102) that comprises a feedstock liquefying unit (107) for liquefying and depositing feedstock material (501) via a nozzle (401),heat exchanging means (106) attached to the printhead assembly being provided with a receiving space (205) that is configured and arranged to receive the feedstock liquefying unit,and a connection arrangement (701) that comprises a first connecting element (702) and a second connecting element (703) that are configured and arranged to one of establish a releasable connection with each other and disconnect said releasable connection upon rotating the first and second connecting elements with respect to each other. The system further comprises a feedstock liquefying unit storage (105), comprising an actuating means (604) that enables assembling and disassembling the connecting arrangement to automatically exchange the feedstock liquefying unit,anda controller for controlling automatic exchange of the feedstock liquefying unit.
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公开(公告)号：WO2018158426A1
公开(公告)日：2018-09-07
申请号：PCT/EP2018/055169
申请日：2018-03-02
发明人： BRUGGEMAN, Thomas Jonathan , BRUGGEMAN, Adrianus , KUIPER, Bouwe , BARTELDS, Jan Teun , KUIT, Koendert Hendrik , GROEN, Klaas , WOLBERS, Martijn Johannes , VOSS, Kevin Hendrik Jozef
IPC分类号： B29C64/393 , B29C64/118 , B33Y10/00 , B33Y50/02 , B33Y80/00 , B29K71/00
摘要： The present application relates to a three-dimensional object created by Fused Deposition Modeling (FDM) of a modeling material from polyaryletherketones (PAEK), polyphenylsulfides, polyamide-imide, polyethersulfon, polyetherimide, polysulfon, polyphenylsulfon, polycarbonates (PC), poly(acrylonitrile butadiene styrene) (ABS), polymethylmethacrylate (PMMA), polyethyleneterephtalate (PET), polystryrene (PS), acrylonitrilstyrene acrylate, polypropylene (PP), polylactic acid (PLA), polyvinylalcohol (PVA), polyethylene (PE), polyoxymethylene, polyurethane (PU), copolymers of polyvinylalcohol and butenediolvinylalcohol and mixtures thereof, optionally filled with inorganic or organic fillers, wherein the object has a porosity of less than 5 vol%, as determined according to the porosity test procedure Porosity test'. The objects are leak tight and show improved mechanical properties. A method of producing such an object is also presented.
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公开(公告)号：WO2016170003A1
公开(公告)日：2016-10-27
申请号：PCT/EP2016/058787
申请日：2016-04-20
CPC分类号： B29C64/118 , B29C35/0805 , B29C64/106 , B29C64/209 , B29C64/264 , B29C64/295 , B29C71/02 , B29C71/04 , B29C2035/0811 , B33Y10/00 , B33Y30/00 , H05B6/106 , H05B6/44
摘要： Method and system of fused deposition modeling an object comprising fused deposition modeling the object of a first fusible material (104); fused deposition modeling at least one heating element from a second fusible material comprising electromagnetic radiation absorptive material (105); exposing the heating element to electromagnetic radiation; wherein the fused deposition modeling the object and the fused deposition modeling the at least one heating element are performed by alternatively depositing layers of the object and the at least one heating element. Use of electromagnetic radiation absorptive material in fused deposition modeling.
摘要翻译： 熔化沉积建模物体的方法和系统，包括对第一可熔材料（104）的物体建模的熔融沉积; 熔融沉积建模来自包含电磁辐射吸收材料（105）的第二可熔材料的至少一个加热元件; 将加热元件暴露于电磁辐射; 其中通过交替地沉积所述物体和所述至少一个加热元件的层来执行对所述物体进行熔融沉积和对所述至少一个加热元件进行熔融沉积建模。 在熔融沉积建模中使用电磁辐射吸收材料。
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公开(公告)号：WO2022129316A1
公开(公告)日：2022-06-23
申请号：PCT/EP2021/086159
申请日：2021-12-16
IPC分类号： B29C64/118 , B29C64/20 , B29C64/209 , B29C64/295 , B29C64/386 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/02
摘要： The invention relates to an extrusion-based AM 3D printing system (100) comprising a printhead assembly (110) comprising a feedstock liquefying unit (130) and a heating element (114) that is configured to generate heat for transforming solid feedstock material into liquefied feedstock material that is extruded as an extrudate (117) via a nozzle (118) of an outlet portion of the feedstock liquefying unit. The system further comprises an extrudate temperature sensor (119) for determining a temperature of the extrudate (117) freshly exiting the nozzle while the printhead assembly is positioned at a non-printing location, and a control unit (140) that is configured to execute a heater controlling algorithm that is configured to generate initial control settings for the heating element, and to execute the heater controlling algorithm for generating adjusted control settings for improving control of the temperature of the extrudate. The invention also relates to a method of improved control of the extrudate temperature.
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6.发明申请
公开(公告)号：WO2021099560A1
公开(公告)日：2021-05-27
申请号：PCT/EP2020/082869
申请日：2020-11-20
IPC分类号： B29C64/118 , B29C64/386 , B33Y10/00 , B33Y30/00 , B33Y50/00 , B33Y80/00
摘要： The invention relates to a method for reducing an additional printing time of a 3D object (1) related to printing of an outer wall (2) of the 3D object, the outer wall having an outer surface (3) with an enhanced smoothness. The outer wall is arranged to envelope an inner part (8) of the 3D object. The outer wall comprises at least one region comprising a first outer wall part (2a) and a second outer wall part (2b). The first outer wall part forms the outer surface with the enhanced smoothness. The second outer wall part is arranged between the first outer wall part and the inner part and provides a low-resolution part of the outer wall having a less smooth outer surface than the first outer wall part. Hence, the additional printing time related to printing the outer wall having an outer surface with an enhanced smoothness can be reduced. The invention also relates to a 3D printing system (30) adapted to perform the method according to the invention and to a 3D printed object having the abovementioned outer wall.
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公开(公告)号：WO2019122082A1
公开(公告)日：2019-06-27
申请号：PCT/EP2018/086109
申请日：2018-12-20
发明人： BRUGGEMAN, Thomas Jonathan , BRUGGEMAN, Adrianus , VOSS, Kevin Hendrik Jozef , SPEELMAN, Marald , GROEN, Klaas , TIMMER ARENDS, Johannes Hermannus , WOLBERS, Martijn Johannes , KUIT, Koendert Hendrik
IPC分类号： B29C64/20
摘要： A printhead assembly comprising connection means for connecting to a positioning system of an AM system, a feedstock liquefying unit, the feedstock liquefying unit comprising a nozzle for depositing liquefied AM feedstock onto at least one of a build plate and an object to be created. The feedstock liquefying unit has a supply opening and a supply channel from the supply opening to the nozzle. The printhead assembly further comprises heat exchanging means attached to the printhead assembly, wherein the heat exchanging means are configured and arranged to establish a releasable clamping connection with the feedstock liquefying unit to accommodate the feedstock liquefying unit in the printhead assembly. The heat exchanging means are actuatable for bringing the heat exchanging means to an open state, and for bringing the heat exchanging means to a closed state. A system for additive manufacturing, comprising a build plate, and a positioning system associated with at least one of the printhead assembly and the build plate, a feedstock liquefying unit storage, a controller arranged for controlling the positioning system for replacing the feedstock liquefying unit.
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8.发明申请
公开(公告)号：WO2023006707A1
公开(公告)日：2023-02-02
申请号：PCT/EP2022/070871
申请日：2022-07-26
发明人： SPEELMAN, Marald , GROEN, Klaas , MULDER, Gerard Folkert , VOSS, Kevin Hendrik Jozef , WOLBERS, Martijn Johannes
IPC分类号： B29C64/118 , B29C64/321 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B29C64/255 , B29C64/259
摘要： An apparatus for forming a three-dimensional object by additive manufacturing, in particular extrusion based modelling, comprises a printhead for depositing modelling material and a base constituting a support for the three-dimensional object to be printed by the printhead. The printhead and the base are moveable with respect to each other for positioning and moving the printhead with respect to the base to form the three-dimensional object. The apparatus furthermore comprises a cartridge containing rods of solid modelling material, and a feeding device adapted to feed the rods of modelling material from the cartridge to the printhead. The cartridge is adapted to be placed on the feeding device.
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公开(公告)号：WO2020070212A1
公开(公告)日：2020-04-09
申请号：PCT/EP2019/076751
申请日：2019-10-02
发明人： BRUGGEMAN, Adrianus , SPEELMAN, Marald , GROEN, Klaas , WOLBERS, Martijn Johannes , KUIT, Koendert Hendrik , EKKELENKAMP, Antonie Everhard
IPC分类号： B33Y30/00 , B29C64/209
摘要： The invention relates to a liquefier tube (100) for an Additive Manufacturing system, the liquefier tube comprising a body (101) provided with a feed channel (115) comprising a feeding portion (102) having a first diameter, an outlet portion (104) having a second diameter, the first diameter being larger than the second diameter, a transitional portion (103) interconnecting the feeding portion and the outlet portion. Said transitional portion has a monotonically decreasing third diameter from said feeding portion to said outlet portion and said third diameter, as a function of a longitudinal position of said feed channel, is differentiable in said transitional portion and at a transition (106) between said transitional portion and said outlet portion. The invention further relates to methods of manufacturing said liquefier tube..
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公开(公告)号：WO2018189406A1
公开(公告)日：2018-10-18
申请号：PCT/EP2018/059679
申请日：2018-04-16
发明人： BRUGGEMAN, Thomas Jonathan , BRUGGEMAN, Adrianus , WOLBERS, Martijn Johannes , VOSS, Kevin Hendrik Jozef , KUIPER, Bouwe , KUIT, Koendert Hendrik , SPEELMAN, Marald
IPC分类号： B29C64/393 , B29C64/35 , B29C64/209 , B29C64/106
摘要： A method for generating a signal indicative for nozzle maintenance, comprising feeding modeling material using feeding means through a feed channel of a printhead to a nozzle of the printheadin a three-dimensional modeling system, determining a parameter indicative of a fluid resistance of modeling material within said nozzle. The determining said parameter comprises determining a flowrate of the modeling material within the feed channel, determining a pressure exerted on the modeling material within the feed channel and determining a pressure exerted on the modeling material outside the feed channel, determining a pressure difference between the pressure exerted on the modeling material within the feed channel and the pressure exerted on the modeling material outside the feed channel, and calculating said parameter from the determined flow rate and the determined pressure difference. The method further comprises comparing said parameter with a predetermined range and generating said signal if said parameter is out of the predetermined range. A method of purging a printhead in a three-dimensional modeling system in a method of three-dimensionally modeling an three-dimensional objectusing the method for generating a signal indicative for nozzle maintenance. A method and system for three-dimensionally modeling a three-dimensional object using the method for generating a signal indicative for nozzle maintenance.
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