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21.发明申请公开(公告)号：US20180281112A1
公开(公告)日：2018-10-04
申请号：US15474052
申请日：2017-03-30
Applicant: General Electric Company
CPC classification number: B23K26/342 , B22F3/1055 , B22F7/062 , B22F2003/1056 , B22F2003/1057 , B22F2999/00 , B23K15/0086 , B23K26/0604 , B29C64/153 , B29C64/277 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: A method for additive manufacturing an object is disclosed. The method includes, for a first portion of the object to be built in a first overlapping field region of a plurality of melting beams of a metal powder AM system, sequentially forming each layer of the first portion by: forming only a border section of the first portion of the object using a first melting beam of the plurality of melting beams in the first overlapping field region; and forming an internal section of the first portion of the object within the border section using at least one second, different melting beam from the first melting beam in the first overlapping field region. An entirety of an internal edge of the border section of the first portion of the object is overlapped with an entirety of an external edge of the internal section of the first portion of the object.
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22.发明授权公开(公告)号：US10821551B2
公开(公告)日：2020-11-03
申请号：US15881054
申请日：2018-01-26
Applicant: General Electric Company
Inventor： Subhrajit Roychowdhury , Matthias Hoebel , Michael Evans Graham , Robert John Filkins , Felix Martin Gerhard Roerig , Donnell Eugene Crear , Prabhjot Singh
IPC: B23K26/342 , B23K26/06 , B23K26/08 , B23K26/073 , B23K26/082 , B33Y50/02 , B33Y10/00 , B33Y30/00 , B22F3/105 , B22F3/00
Abstract: An additive manufacturing system includes a laser device, a build plate, and a scanning device. The laser device is configured to generate a laser beam with a variable intensity. The build plate is configured to support a powdered build material. The scanning device is configured to selectively direct the laser beam across the powdered build material to generate a melt pool on the build plate. The scanning device is configured to oscillate a spatial position of the laser beam while the laser device simultaneously modulates the intensity of the laser beam to facilitate reducing spatter and to facilitate reducing a temperature of the melt pool to reduce overheating of the melt pool.
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23.发明授权公开(公告)号：US10695867B2
公开(公告)日：2020-06-30
申请号：US15915406
申请日：2018-03-08
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Thomas Etter , Matthias Hoebel , Felix Martin Gerhard Roerig
IPC: B23K26/342 , B23K26/34 , B33Y10/00 , B33Y30/00 , B23K26/082 , B23K26/06 , B23K26/10 , B23K26/03 , B23K26/0622
Abstract: Controlling microstructure in an object created by metal powder additive manufacturing is disclosed. During additive manufacturing of one or more objects using an irradiation beam source system, for each respective layer in a selected range of layers including a cross-sectional area of the one or more objects including the selected object, a duration controller controls actuation of each irradiation device to maintain constant a sum of: an irradiation device melting time, an irradiation device idle time, and a recoating time expended applying a new powder material layer, while otherwise maintaining all other operation parameters of each irradiation device constant.
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公开(公告)号：US10695866B2
公开(公告)日：2020-06-30
申请号：US15493313
申请日：2017-04-21
Applicant: General Electric Company
Inventor： Felix Martin Gerhard Roerig , Thomas Etter , Matthias Hoebel , Julius Andreas Schurb
IPC: B23K26/342 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B22F3/105
Abstract: In some cases, an additive manufacturing (AM) system includes: a process chamber for additively manufacturing a component, the process chamber having: a build platform; at least one melting beam scanner configured to emit a melting beam for melting powder on the build platform; an applicator for applying layers of powder to the build platform; and a reservoir for storing powder; and a control system coupled with the set of melting beam scanners, the control system configured to: apply the melting beam to a layer of powder on the build platform along a primary melting path; and apply the melting beam to the layer of powder on the build platform along a re-melting path after applying the melting beam along the primary melting path, the re-melting path overlapping a portion of the primary melting path and applied only in an area proximate a perimeter of the component.
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公开(公告)号：US10596803B2
公开(公告)日：2020-03-24
申请号：US15608231
申请日：2017-05-30
Applicant: General Electric Company
Inventor： Donnell Eugene Crear , Mikhail Pavlov , Felix Martin Gerhard Roerig , Dean Andrew Snelling, Jr.
IPC: G01S17/08 , B33Y40/00 , B33Y50/02 , B33Y30/00 , B29C64/393 , B29C64/307 , B33Y10/00 , B29C64/153
Abstract: Additive manufacturing systems (AMS) are disclosed. The AMS may include a build plate positioned directly on a movable build platform, and a recoater device positioned above the build plate. The recoater device may include a blade. Additionally, the AMS may include a calibration system operably connected to the recoater device. The calibration system may include at least one measurement device coupled or positioned adjacent to the recoater device, and at least one computing device operably connected to the measurement device(s). The computing device(s) may be configured to calibrate the recoater device by adjusting a height of the blade of the recoater device relative to a reference surface of a component of the AMS in response to determining a pre-build distance between the blade of the recoater device and the reference surface differs from a desired distance. The pre-build distance may be determined using the measurement device(s).
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Patent Agency Ranking
公开(公告)号：US10589382B2
公开(公告)日：2020-03-17
申请号：US15474052
申请日：2017-03-30
Applicant: General Electric Company
IPC: B23K26/342 , B23K15/00 , B23K9/04 , B22F3/105 , B29C64/153 , B23K26/06 , B29C64/277 , B22F7/06 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: A method for additive manufacturing an object is disclosed. The method includes, for a first portion of the object to be built in a first overlapping field region of a plurality of melting beams of a metal powder AM system, sequentially forming each layer of the first portion by: forming only a border section of the first portion of the object using a first melting beam of the plurality of melting beams in the first overlapping field region; and forming an internal section of the first portion of the object within the border section using at least one second, different melting beam from the first melting beam in the first overlapping field region. An entirety of an internal edge of the border section of the first portion of the object is overlapped with an entirety of an external edge of the internal section of the first portion of the object.
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27.发明申请公开(公告)号：US20190232428A1
公开(公告)日：2019-08-01
申请号：US15881147
申请日：2018-01-26
Applicant: General Electric Company
Inventor： Subhrajit Roychowdhury , Matthias Hoebel , Lang Yuan , Prabhjot Singh , Michael Evans Graham , Robert John Filkins , Thomas Etter , Felix Martin Gerhard Roerig
IPC: B23K26/342 , B23K26/02 , B23K26/06 , B23K26/064 , B23K26/082 , B23K26/08
Abstract: An additive manufacturing system includes a laser device, a build plate, and a scanning device. The laser device is configured to generate a laser beam with a variable intensity. The build plate is configured to support a powdered build material. The scanning device is configured to selectively direct the laser beam across the powdered build material to generate a melt pool on the build plate. The scanning device is configured to oscillate a spatial position of the laser beam while the laser device is configured to simultaneously modulate the intensity of the laser beam to thermally control the melt pool.
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28.发明申请公开(公告)号：US20190232427A1
公开(公告)日：2019-08-01
申请号：US15881054
申请日：2018-01-26
Applicant: General Electric Company
Inventor： Subhrajit Roychowdhury , Matthias Hoebel , Michael Evans Graham , Robert John Filkins , Felix Martin Gerhard Roerig , Donnell Eugene Crear , Prabhjot Singh
IPC: B23K26/342 , B23K26/073 , B23K26/06 , B23K26/082 , B23K26/08
Abstract: An additive manufacturing system includes a laser device, a build plate, and a scanning device. The laser device is configured to generate a laser beam with a variable intensity. The build plate is configured to support a powdered build material. The scanning device is configured to selectively direct the laser beam across the powdered build material to generate a melt pool on the build plate. The scanning device is configured to oscillate a spatial position of the laser beam while the laser device simultaneously modulates the intensity of the laser beam to facilitate reducing spatter and to facilitate reducing a temperature of the melt pool to reduce overheating of the melt pool.
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公开(公告)号：US20190118261A1
公开(公告)日：2019-04-25
申请号：US15792928
申请日：2017-10-25
Applicant: General Electric Company
Inventor： Jan Vladimir Schwerdtfeger , Juan Vicente Haro Gonzalez , David Mazzolini , Felix Martin Gerhard Roerig , Steve Seifert
IPC: B22F3/105 , B33Y30/00 , B33Y10/00 , B23K26/342
Abstract: An additively manufactured (AM) structure includes a removal plane extending therein defining an object thereabove. The AM structure also includes at least one datum structure coupled relative to the AM structure. Each datum structure includes a vertical reference plane for guiding a cutting element to remove the object from a remaining portion of the AM structure through the removal plane. The vertical reference plane is horizontally coplanar with the removal plane of the AM structure. The datum structures allow for accurate object cuts regardless of whether an AM build platform is horizontal or non-planar.
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30.发明申请公开(公告)号：US20180348492A1
公开(公告)日：2018-12-06
申请号：US15608154
申请日：2017-05-30
Applicant: General Electric Company
Inventor： Mikhail Pavlov , Donnell Eugene Crear , Felix Martin Gerhard Roerig , Dean Andrew Snelling, JR.
CPC classification number: B33Y40/00 , B29C64/153 , B29C64/268 , B29C64/393 , B33Y30/00 , B33Y50/02
Abstract: Additive manufacturing systems (AMS) are disclosed. The AMS may include a movable build platform, and a calibration system operably connected to the build platform. The calibration system may include a reflective element operably coupled to the build platform, a first calibration model positioned above and vertically offset from the reflective element, and a first camera substantially aligned with the first calibration model. The first camera may be visually aligned with the reflective element to capture a first reflective image of the first calibration model as reflected by the reflective element. The calibration system may also include at least one computing device operably connected to the build platform and the first camera, and configured to calibrate the build platform by: adjusting an actual inclination of the build platform in response to determining the first reflective image differs from a predetermined image of the first calibration model.
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