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公开(公告)号:WO2018237068A1
公开(公告)日:2018-12-27
申请号:PCT/US2018/038588
申请日:2018-06-20
IPC分类号: B29C64/393 , B29C64/264 , B29C64/124 , B29C64/386 , B33Y50/02 , B33Y40/00 , B33Y10/00 , B33Y50/00
摘要: A method of additive manufacturing includes storing a plurality of predetermined cell processing recipes, dispensing a layer of a plurality of successive layers of feed material on a platform, receiving data describing an area of the layer of the feed material to fuse, determining a combination of a plurality of non-overlapping cells that substantially cover the area, and sequentially processing the plurality of cells. Each cell processing recipe includes scan path data indicating a path for an energy beam to follow, and different cell processing recipes having different paths for the energy beam. Each cell of the plurality of cells gets an associated cell processing recipe selected from the plurality of predetermined cell processing recipes. Each cell is processed by causing an energy beam to follow the first path for the cell processing recipe associated with the cell.
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公开(公告)号:WO2018237049A1
公开(公告)日:2018-12-27
申请号:PCT/US2018/038565
申请日:2018-06-20
IPC分类号: B29C64/386 , B29C64/264 , B29C64/153 , B29C64/295 , B33Y50/02 , B33Y10/00 , B33Y30/00
摘要: An additive manufacturing apparatus includes a platform, a dispenser to deliver a plurality of successive layers of feed material on the platform, a light source to generate one or more light beams, a first galvo mirror scanner positioned to direct a first light beam onto a topmost layer of the plurality of successive layers, a second galvo mirror scanner positioned to direct a second light beam onto the topmost layer of the plurality of successive layers, and a controller configured to cause the first galvo mirror scanner to direct the first light beam to pre-heat or heat-treat an area of the topmost layer and to cause the second galvo mirror scanner to direct the second light beam to fuse the area of the topmost layer.
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公开(公告)号:WO2017015157A1
公开(公告)日:2017-01-26
申请号:PCT/US2016/042627
申请日:2016-07-15
发明人: NG, Hou T. , PATIBANDLA, Nag B. , JOSHI, Ajey M. , SWAMINATHAN, Bharath , KUMAR, Ashavani , NG, Eric , FREY, Bernard , KRISHNAN, Kasiraman
CPC分类号: B22F3/1055 , B22F2003/1056 , B29C64/153 , B29C64/20 , B33Y10/00 , B33Y30/00 , Y02P10/295
摘要: An additive manufacturing system includes a platen having a top surface to support an object being manufactured, a feed material dispenser to deliver a plurality of successive layers of feed material over the platen, an energy source positioned above the platen to fuse at least a portion of an outermost layer of feed material, and a coolant fluid dispenser to deliver a coolant fluid onto the outermost layer of feed material after at least a portion of the outermost layer has been fused.
摘要翻译: 添加剂制造系统包括具有用于支撑被制造物体的顶表面的压板,用于在压板上方输送多个连续的进料材料层的进料分配器,位于压板上方的能量源,以将至少一部分 最外层的进料,以及冷却剂流体分配器,用于在最外层的至少一部分熔融之后将冷却剂流体输送到进料的最外层。
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公开(公告)号:WO2019104167A3
公开(公告)日:2019-05-31
申请号:PCT/US2018/062245
申请日:2018-11-21
IPC分类号: B29C64/386 , B29C64/205 , B33Y30/00 , B33Y50/00
摘要: An additive manufacturing apparatus includes a platform, a dispenser to deliver a plurality of successive layers of feed material onto the platform, a light source to generate a light beam, a first polygon mirror scanner to reflect the light beam towards the platform, and a second polygon mirror scanner to reflect the light beam towards the platform. The light beam is alternately directed to the first polygon mirror scanner and the second polygon mirror scanner such that the light beam is directed to the first polygon mirror scanner during a dead time of the second polygon mirror scanner and the light beam is directed to the second polygon mirror scanner during a dead time of the first polygon mirror scanner.
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公开(公告)号:WO2018165549A1
公开(公告)日:2018-09-13
申请号:PCT/US2018/021747
申请日:2018-03-09
发明人: NG, Hou T. , PATIBANDLA, Nag B. , JOSHI, Ajey M. , ZEHAVI, Raanan , FRANKLIN, Jeffrey L. , MAQSOOD, Kashif
IPC分类号: B29C64/268 , B29C64/153 , G02B5/09 , B33Y30/00
摘要: An additive manufacturing apparatus includes a platform, a dispenser to dispense a plurality of layers of feed material on a top surface of the platform, and an energy delivery system. The energy deliver system includes a light source to emit a light beam, and a reflective member having a plurality of reflective facets. The reflective member is positioned in a path of the light beam to receive the light beam and redirect the light beam toward the top surface of the platform to deliver energy to an uppermost layer of the layers of feed material to fuse the feed material. The reflective member is rotatable such that sequential facets sweep the light beam sequentially along a path on the uppermost layer.
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公开(公告)号:WO2017015146A2
公开(公告)日:2017-01-26
申请号:PCT/US2016/042598
申请日:2016-07-15
发明人: NG, Hou T. , PATIBANDLA, Nag B. , JOSHI, Ajey M. , SWAMINATHAN, Bharath , KUMAR, Ashavani , NG, Eric , FREY, Bernard , KRISHNAN, Kasiraman
CPC分类号: B22F3/1055 , B22F2003/1056 , B22F2003/1058 , B29C64/153 , B29C64/20 , B29C64/40 , B33Y10/00 , B33Y30/00 , C04B35/653 , C04B2235/6026 , Y02P10/295
摘要: Additive manufacturing of an object includes dispensing a plurality of successive layers of powder over a top surface of a platform, fusing an object region in each of the plurality of successive layers to form the object, and fusing a brace region in a particular layer from the plurality of layers to form a brace structure to inhibit lateral motion of the powder. The brace structure is spaced apart from the particular object region by a gap of unfused powder.
摘要翻译: 物体的增材制造包括在平台的顶表面上分配多个连续的粉末层,在多个连续层中的每一个中熔化物体区域以形成物体,以及熔合 在来自所述多个层的特定层中支撑区域以形成支撑结构以抑制粉末的横向运动。 支撑结构与特定物体区域隔开一段未融合粉末的间隙。 p>
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公开(公告)号:WO2020102083A4
公开(公告)日:2020-05-22
申请号:PCT/US2019/060739
申请日:2019-11-11
IPC分类号: B29C64/386 , B29C64/245 , B29C64/264 , B33Y50/00 , B33Y30/00
摘要: An additive manufacturing apparatus includes a platform having a top surface to support a part being constructed, a dispenser configured to deliver a plurality of successive layers of feed material onto the platform, at least one energy source to selectively fuse feed material in a layer on the platform, and an in-situ monitoring system comprising a plurality of ultrasonic sensors acoustically coupled to the platform and configured to transmit ultrasonic energy through the platform to the part being constructed on the platform and receive reflections of the ultrasonic energy through the platform from the part.
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公开(公告)号:WO2020102083A1
公开(公告)日:2020-05-22
申请号:PCT/US2019/060739
申请日:2019-11-11
IPC分类号: B29C64/386 , B29C64/245 , B29C64/264 , B33Y50/00 , B33Y30/00
摘要: An additive manufacturing apparatus includes a platform having a top surface to support a part being constructed, a dispenser configured to deliver a plurality of successive layers of feed material onto the platform, at least one energy source to selectively fuse feed material in a layer on the platform, and an in-situ monitoring system comprising a plurality of ultrasonic sensors acoustically coupled to the platform and configured to transmit ultrasonic energy through the platform to the part being constructed on the platform and receive reflections of the ultrasonic energy through the platform from the part.
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公开(公告)号:WO2018237171A1
公开(公告)日:2018-12-27
申请号:PCT/US2018/038802
申请日:2018-06-21
摘要: An additive manufacturing apparatus and methods relating to forming multiple layers on an object on a support including dispensing a layer of feed material over the support, fusing a portion of the layer of feed material to form a fused portion in the layer, determining to rework a particular region in the fused portion, and reworking the particular region. Reworking the particular region includes establishing a gas flow directed towards the particular region and producing a melt pool having a keyhole within the particular region.
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公开(公告)号:WO2016205743A1
公开(公告)日:2016-12-22
申请号:PCT/US2016/038232
申请日:2016-06-17
发明人: SWAMINATHAN, Bharath , JOSHI, Ajey M. , PATIBANDLA, Nag B. , NG, Hou T. , KUMAR, Ashavani , NG, Eric , FREY, Bernard , KRISHNAN, Kasiraman
CPC分类号: B22F3/1055 , B22F2003/1057 , B23K26/16 , B23K26/342 , B23K2203/05 , B23K2203/08 , B23K2203/14 , B23K2203/26 , B33Y10/00 , B33Y30/00 , B33Y50/02 , Y02P10/295
摘要: A method of additive manufacturing include delivering at least one layer by either depositing a uniform layer of powder on a support and then removing a portion of the layer with a roller with a surface having spatially controlled electrostatic charge, or by depositing powder onto the surface of the roller and moving the roller relative to a support such that the spatially controllable electrostatic charge on the surface of the roller causes transfer of a corresponding portion of the powder from the roller onto the support or an underlying layer.
摘要翻译: 添加剂制造的方法包括通过在支撑体上沉积均匀的粉末层,然后用具有空间控制静电荷的表面的辊去除一部分层,或通过将粉末沉积在 辊子并相对于支撑件移动辊子,使得辊子表面上的空间可控静电电荷使得粉末的相应部分从辊转移到支撑件或下层上。
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