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公开(公告)号：US11759861B2
公开(公告)日：2023-09-19
申请号：US17232467
申请日：2021-04-16
发明人： Eric Edward Halla , Ramakrishna Venkata Mallina , Kishore Ramakrishnan , Shashwat Swami Jaiswal , Mohammed Mounir Shalaby , Adam Garret Susong , Peter Pontiller-Schymura
摘要： A build unit for additively manufacturing three-dimensional objects may include an energy beam system having one or more irradiation devices respectively configured to direct one or more energy beams onto a region of a powder bed, and an inertization system including an irradiation chamber defining an irradiation plenum, one or more supply manifolds, and a return manifold. The one or more supply manifolds may include a downflow manifold configured to provide a downward flow of a process gas through at least a portion of the irradiation plenum defined by the irradiation chamber, and/or a crossflow manifold configured to provide a lateral flow of the process gas through at least a portion of the irradiation plenum defined by the irradiation chamber. The return manifold may evacuate or otherwise remove process gas from the irradiation plenum defined by the irradiation chamber.
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公开(公告)号：US20240198425A1
公开(公告)日：2024-06-20
申请号：US18590325
申请日：2024-02-28
发明人： Eric Edward Halla , Ramakrishna Venkata Mallina , Kishore Ramakrishnan , Shashwat Swami Jaiswal , Mohammed Mounir Shalaby , Peter Pontiller-Schymura
CPC分类号： B22F10/77 , B22F10/28 , B22F12/33 , B22F12/70 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B22F2201/10
摘要： A build unit for additively manufacturing three-dimensional objects may include an energy beam system, an irradiation chamber, an inertization system having a return manifold configured to evacuate a process gas from the irradiation chamber. The return manifold includes a plurality of return manifold bodies and return manifold inlet disposed at a bottom of the irradiation chamber. The plurality of return manifold bodies includes one or more return manifold pathways downstream of the return manifold inlet. The plurality of return manifold bodies also includes one or more recapture pathways positioned to receive the process gas into the one or more return manifold pathways that flows past the return manifold inlet.
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公开(公告)号：US20220331875A1
公开(公告)日：2022-10-20
申请号：US17232516
申请日：2021-04-16
发明人： Eric Edward Halla , Ramakrishna Venkata Mallina , Kishore Ramakrishnan , Shashwat Swami Jaiswal , Mohammed Mounir Shalaby , Peter Pontiller-Schymura
摘要： A build unit for additively manufacturing three-dimensional objects may include an energy beam system having one or more irradiation devices respectively configured to direct one or more energy beams onto a region of a powder bed, and an inertization system including an irradiation chamber defining an irradiation plenum, one or more supply manifolds, and a return manifold. The one or more supply manifolds may include a downflow manifold configured to provide a downward flow of a process gas through at least a portion of the irradiation plenum defined by the irradiation chamber, and/or a crossflow manifold configured to provide a lateral flow of the process gas through at least a portion of the irradiation plenum defined by the irradiation chamber. The return manifold may evacuate or otherwise remove process gas from the irradiation plenum defined by the irradiation chamber. While irradiating the region of the powder bed, the process gas may flow through the one or more supply manifolds, into the irradiation plenum, and from the irradiation plenum into the return manifold.
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公开(公告)号：US20220331869A1
公开(公告)日：2022-10-20
申请号：US17232467
申请日：2021-04-16
发明人： Eric Edward Halla , Ramakrishna Venkata Mallina , Kishore Ramakrishnan , Shashwat Swami Jaiswal , Mohammed Mounir Shalaby , Adam Garret Susong , Peter Pontiller-Schymura
摘要： A build unit for additively manufacturing three-dimensional objects may include an energy beam system having one or more irradiation devices respectively configured to direct one or more energy beams onto a region of a powder bed, and an inertization system including an irradiation chamber defining an irradiation plenum, one or more supply manifolds, and a return manifold. The one or more supply manifolds may include a downflow manifold configured to provide a downward flow of a process gas through at least a portion of the irradiation plenum defined by the irradiation chamber, and/or a crossflow manifold configured to provide a lateral flow of the process gas through at least a portion of the irradiation plenum defined by the irradiation chamber. The return manifold may evacuate or otherwise remove process gas from the irradiation plenum defined by the irradiation chamber. While irradiating the region of the powder bed, the process gas may flow through the one or more supply manifolds, into the irradiation plenum, and from the irradiation plenum into the return manifold.
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公开(公告)号：US11938539B2
公开(公告)日：2024-03-26
申请号：US17232516
申请日：2021-04-16
发明人： Eric Edward Halla , Ramakrishna Venkata Mallina , Kishore Ramakrishnan , Shashwat Swami Jaiswal , Mohammed Mounir Shalaby , Peter Pontiller-Schymura
CPC分类号： B22F10/77 , B22F10/28 , B22F12/33 , B22F12/70 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B22F2201/10
摘要： A build unit for additively manufacturing three-dimensional objects may include an energy beam system having one or more irradiation devices respectively configured to direct one or more energy beams onto a region of a powder bed, and an inertization system including an irradiation chamber defining an irradiation plenum, one or more supply manifolds, and a return manifold. The one or more supply manifolds may include a downflow manifold configured to provide a downward flow of a process gas through at least a portion of the irradiation plenum defined by the irradiation chamber, and/or a crossflow manifold configured to provide a lateral flow of the process gas through at least a portion of the irradiation plenum defined by the irradiation chamber. The return manifold may evacuate or otherwise remove process gas from the irradiation plenum defined by the irradiation chamber.
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公开(公告)号：US20220332049A1
公开(公告)日：2022-10-20
申请号：US17232434
申请日：2021-04-16
发明人： Eric Edward Halla , Ramakrishna Venkata Mallina , Kishore Ramakrishnan , Shashwat Swami Jaiswal , Mohammed Mounir Shalaby , Peter Pontiller-Schymura
IPC分类号： B29C64/371 , B29C64/153 , B22F10/28 , B22F12/70 , B33Y10/00 , B33Y30/00
摘要： A build unit for additively manufacturing three-dimensional objects may include an energy beam system having one or more irradiation devices respectively configured to direct one or more energy beams onto a region of a powder bed, and an inertization system including an irradiation chamber defining an irradiation plenum, one or more supply manifolds, and a return manifold. The one or more supply manifolds may include a downflow manifold configured to provide a downward flow of a process gas through at least a portion of the irradiation plenum defined by the irradiation chamber, and/or a crossflow manifold configured to provide a lateral flow of the process gas through at least a portion of the irradiation plenum defined by the irradiation chamber. The return manifold may evacuate or otherwise remove process gas from the irradiation plenum defined by the irradiation chamber. While irradiating the region of the powder bed, the process gas may flow through the one or more supply manifolds, into the irradiation plenum, and from the irradiation plenum into the return manifold.
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公开(公告)号：US11685120B2
公开(公告)日：2023-06-27
申请号：US17528734
申请日：2021-11-17
发明人： Christian Thomas Wakelam , Rene du Cauze de Nazelle , Mohammed Mounir Shalaby , Kishore Ramakrishnan , Jens Stammberger
IPC分类号： B29C64/371 , B29C64/153 , B29C64/245 , B05B7/08 , B05B12/00 , B05B12/08 , B22F12/70 , B22F12/90 , B22F10/322 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B22F10/28 , B22F10/77 , B22F12/43
CPC分类号： B29C64/371 , B05B7/08 , B05B12/006 , B05B12/087 , B22F10/322 , B22F12/70 , B22F12/90 , B29C64/153 , B29C64/245 , B22F10/28 , B22F10/77 , B22F12/43 , B22F2201/11 , B33Y10/00 , B33Y30/00 , B33Y40/00
摘要： An additive manufacturing (AM) system includes a housing defining a chamber, a build platform disposed in the chamber at a first elevation, and a lower gas inlet disposed at a second elevation and configured to supply a lower gas flow. The AM system includes a contoured surface extending between the lower gas inlet and the build platform to direct the lower gas flow from the second elevation at the lower gas inlet to the first elevation at the build platform, where the contoured surface discharges the lower gas flow in a direction substantially parallel to the build platform. The AM system also includes one or more gas delivery devices coupled to the lower gas inlet to regulate one or more flow characteristics of the lower gas flow, and a gas outlet configured to discharge the lower gas flow.
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公开(公告)号：US20220281011A1
公开(公告)日：2022-09-08
申请号：US17189959
申请日：2021-03-02
IPC分类号： B22F12/67 , B22F10/50 , B29C64/214 , B22F10/85 , B29C64/393
摘要： A recoater for an additive manufacturing apparatus includes a recoater arm and retainer operably coupled with the recoater arm. The retainer includes a housing defining a cavity. A blade carrier supports one or more blades. An actuator is operably coupled with the housing and is configured to compressively retain an upper portion of the blade carrier within the cavity between a slide of the actuator and the housing.
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公开(公告)号：US20200061656A1
公开(公告)日：2020-02-27
申请号：US16107723
申请日：2018-08-21
IPC分类号： B05B12/32 , B05B12/08 , B22F3/105 , B29C64/153 , B29C64/245 , B29C64/371 , B05B12/00 , B05B7/08
摘要： The present disclosure relates to the manufacture and use of an additive manufacturing (AM) system that employs a spacer flow guide disposed or formed within a housing that defines a chamber of the AM system. The spacer flow guide may direct various portions of a gas flow within the chamber to respective exhaust channels. For example, in combination with portions of the housing, the spacer flow guide may define a main exhaust channel that extends between the chamber and a gas outlet formed in a downstream end of the housing. Additionally, a bypass exhaust channel may be defined between the chamber and a back surface of the spacer flow guide to fluidly couple an upper portion of the chamber to the main exhaust channel.
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公开(公告)号：US10471510B2
公开(公告)日：2019-11-12
申请号：US15677417
申请日：2017-08-15
IPC分类号： B33Y10/00 , B22F3/105 , B33Y50/02 , B29C64/135
摘要： A computerized method, system, program product and additive manufacturing (AM) system are disclosed. Embodiments provide for modifying object code representative of an object to be physically generated layer by layer by a computerized AM system using the object code. The computerized method may include providing an interface to allow a user to manually: select a region within the object in the object code, the object code including a plurality of pre-assigned build strategy parameters for the object that control operation of the computerized AM system, and selectively modify a build strategy parameter in the selected region in the object code to change an operation of the computerized AM system from the plurality of pre-assigned build strategy parameters during building of the object by the computerized AM system.
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