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公开(公告)号：US20180334797A1
公开(公告)日：2018-11-22
申请号：US15600400
申请日：2017-05-19
摘要： Apparatus and methods for joining panels are presented. Panels may be commercial off the shelf (COTS) panels and/or additively manufactured panels; and panels can be joined using an additively manufactured interconnect unit. Notches and protrusions can be formed in the panels and in the interconnect unit to facilitate the connection of the panels with the interconnect unit. In another approach a ribbed triangular prism can be manufactured using three dimensional (3D) printing. The panels can then be joined by inserting the ribbed triangular prism between the panels and by using an adhesive for bonding.
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公开(公告)号：US20170355003A1
公开(公告)日：2017-12-14
申请号：US15619326
申请日：2017-06-09
CPC分类号： B21D47/01 , B21C23/142 , B21D7/12 , B21D9/05 , B21D53/88 , B62D23/005 , B62D25/00 , B62D25/04 , B62D27/023
摘要： A metal extrusion and nodes based structure is provided. The structure comprises one or more arc members connected by one or more node members, wherein the arc comprises (i) a wing feature which is configured to mate with one or more non-structural components, (ii) an internal passage feature which is configured to be inserted into a connecting feature of the corresponding node member, and (iii) one or more keying features formed from a mating interface with the corresponding node member.
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公开(公告)号：US20180311760A1
公开(公告)日：2018-11-01
申请号：US15582470
申请日：2017-04-28
IPC分类号： B23K15/02 , B33Y10/00 , B33Y30/00 , B23K15/00 , B23K26/342 , B23K26/03 , B23K26/06 , B23K26/082 , B23K26/60
摘要： Systems and methods for beam scanning for powder bed fusion (PBF) systems are provided. A PBF apparatus can include a structure that supports a layer of powder material, an energy beam source that generates an energy beam, and a deflector that applies the energy beam to fuse an area of the powder material in the layer at multiple locations, the deflector being further configured to apply the energy beam to each of the locations multiple times. A PBF apparatus can include a deflector configured to provide multiple scans to a layer powder material supported by the structure. A PBF apparatus can include a deflector that applies the energy beam to fuse an area of the powder material in the layer at multiple locations, the deflector being further configured to apply the energy beam in a raster scan.
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公开(公告)号：US20180311732A1
公开(公告)日：2018-11-01
申请号：US15582409
申请日：2017-04-28
发明人： Eahab Nagi EL NAGA , John Russell BUCKNELL , Chor Yen YAP , Broc William TenHOUTEN , Antonio Bernerd MARTINEZ
IPC分类号： B22F3/105 , B33Y10/00 , B33Y30/00 , B29C67/00 , B22F3/16 , B22F3/18 , B22F3/02 , B22F3/10 , B23K26/342 , B23K26/142 , B23K26/70 , B33Y50/02
摘要： Systems and methods of support structures in powder-bed fusion (PBF) are provided. Support structures can be formed of bound powder, which can be, for example, compacted powder, compacted and sintered powder, powder with a binding agent applied, etc. Support structures can be formed of non-powder support material, such as a foam. Support structures can be formed to include resonant structures that can be removed by applying a resonance frequency. Support structures can be formed to include structures configured to melt when electrical current is applied for easy removal.
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公开(公告)号：US20190277402A1
公开(公告)日：2019-09-12
申请号：US15919129
申请日：2018-03-12
发明人： William David KREIG , Eahab Nagi EL NAGA , Chukwubulkem Marcel OKOLI , David Brian TenHOUTEN , Steven Blair MASSEY, JR.
IPC分类号： F16J15/328 , B29C64/10 , B29C65/54
摘要： Apparatus and methods for additively manufactured O-ring grooves are presented herein. An O-ring groove is additively manufactured to have a vertical face, bottom face, and an opposite face. By additively manufacturing the opposite face to be outwardly facing with an obtuse angle, the O-ring groove can be built without the need for support structures, thereby reducing post processing steps and manufacturing cost.
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公开(公告)号：US20190160515A1
公开(公告)日：2019-05-30
申请号：US16198543
申请日：2018-11-21
IPC分类号： B21D47/01 , B62D25/04 , B62D23/00 , B62D27/02 , B21D53/88 , B21C23/14 , B21D7/12 , B21D9/05 , B62D25/00
摘要： A metal extrusion and nodes based structure is provided. The structure comprises one or more arc members connected by one or more node members, wherein the arc comprises (i) a wing feature which is configured to mate with one or more non-structural components, (ii) an internal passage feature which is configured to be inserted into a connecting feature of the corresponding node member, and (iii) one or more keying features formed from a mating interface with the corresponding node member.
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公开(公告)号：US20180339466A1
公开(公告)日：2018-11-29
申请号：US15607055
申请日：2017-05-26
摘要： Systems and methods for material handling in additive manufacturing systems are provided. Environmental control can decrease exposure of a powder to substances that change a material property of the powder and/or that change a property of a build piece formed from fusing the powder. Powders can be mixed for use in PBF systems. For example, a powder that has been through a printing operation can be reused by mixing the reuse powder with new powder. Powder can be recovered after a printing operation and reused, recycled into new powder, etc. Powder can be decontaminated for better reusability.
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公开(公告)号：US20210170517A1
公开(公告)日：2021-06-10
申请号：US17125796
申请日：2020-12-17
摘要： Systems and methods for reducing charged powder particle scattering in powder-bed fusion (PBF) systems are provided. A PBF apparatus can include a structure that supports a layer of powder material having a plurality of particles of powder. For example, the structure can be a build plate, a build floor, a build piece, etc. The apparatus can also include an energy beam source that generates an energy beam and a deflector that applies the energy beam to fuse an area of the powder material in the layer. The energy beam can electrically charge the particles of powder. The apparatus can also include an electrical system that generates an electrical force between the structure and the charged particles of powder. For example, the electrical system can include a voltage source that applies a first voltage to the structure.
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公开(公告)号：US20190337056A1
公开(公告)日：2019-11-07
申请号：US15968708
申请日：2018-05-01
发明人： Eahab Nagi EL NAGA , Ross Harrison Byers , Keith Allen Fleming , Steven Blair Massey, JR. , Narender Shankar Lakshman , Antonio Bernerd Martinez
摘要： Apparatus and methods for sealing powder holes in additively manufactured parts are presented herein. Powder holes are co-printed to facilitate post processing sealing. Embodiments include co-printed caps, friction welded caps, rivets, silicone plugs, co-printed tangs, multiple micro holes, layup, and spin forming. By using one or more of the above techniques, powder holes can be sealed on additively manufactured parts.
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公开(公告)号：US20190048912A1
公开(公告)日：2019-02-14
申请号：US15671894
申请日：2017-08-08
发明人： Kevin Robert CZINGER , Broc William TenHOUTEN , John Russell BUCKNELL , Antonio Bernerd MARTINEZ , Eahab Nagi EL NAGA , William Bradley BALZER , Zachary Meyer OMOHUNDRO , Praveen Varma PENMETSA , Matthew Michael O'BRIEN , John Franklin DUNHAM
摘要： Connections between nodes and tubes are provided. An apparatus can include additively manufactured first and second nodes, a tube, and an interconnect connecting the tube to the first and second nodes. An apparatus can include a node having an end portion with inner and outer concentric portions forming an annular gap therebetween, and a tube having an end portion extending into the gap.
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