公开(公告)号：US20220362886A1

公开(公告)日：2022-11-17

申请号：US17878624

申请日：2022-08-01

Applicant: General Electric Company

Inventor： Todd Jay Rockstroh ,  Michael Francis Xavier Gigliotti ,  William Thomas Carter ,  David Henry Abbott ,  Rajendra Madhukar Kelkar

IPC: B23K26/342 ,  C30B29/52 ,  B33Y10/00 ,  B33Y30/00 ,  C30B11/00 ,  B22F10/20 ,  B33Y80/00 ,  B23K26/144 ,  B23K26/70 ,  B23K26/08 ,  C30B11/02 ,  C30B28/06 ,  H05B3/00 ,  H05B6/10

Abstract: A method of making a component includes: depositing a metallic powder on a workplane; directing a beam from a directed energy source to fuse the powder in a pattern corresponding to a cross-sectional layer of the component; repeating in a cycle the steps of depositing and fusing to build up the component in a layer-by layer fashion; and during the cycle of depositing and melting, using an external heat control apparatus separate from the directed energy source to maintain a predetermined temperature profile of the component, such that the resulting component has a directionally-solidified or single-crystal microstructure.

公开(公告)号：US09989482B2

公开(公告)日：2018-06-05

申请号：US15044921

申请日：2016-02-16

Applicant: GENERAL ELECTRIC COMPANY

Inventor： David Henry Abbott ,  Nicolas Kristopher Sabo

IPC: G01N23/04 ,  G01N23/083

CPC classification number: G01N23/083 ,  G01N23/046 ,  G01N2223/404 ,  G01N2223/63 ,  G01N2223/646

Abstract: The present disclosure generally relates to methods for radiographic and computed tomography (CT) inspection of workpieces having increasingly complicated internal geometry. The disclosed methods are capable of distributing a contrast agent within the detailed internal geometry of, for example, an AM workpiece or precision cast turbine blade, followed by complete removal of the contrast agent and all residues thereof after inspection.

公开(公告)号：US20180292331A1

公开(公告)日：2018-10-11

申请号：US15479454

申请日：2017-04-05

Applicant: General Electric Company

Inventor： Scott Alan Gold ,  Thomas Graham Spears ,  David Henry Abbott

IPC: G01N23/04 ,  B33Y50/02 ,  B33Y80/00 ,  B29C67/00

Abstract: A system and method for authenticating an additively manufactured component is provided. The method includes locating an identifying region of the component that includes localized density variations that define a component identifier. The method further includes interrogating the identifying region of the component using a scanning device such as an x-ray computed tomography device to obtain the component identifier. The method further includes obtaining a reference identifier from a database, comparing the component identifier to the reference identifier, and determining that the component is authentic if the component identifier matches the reference identifier.

公开(公告)号：US20180290396A1

公开(公告)日：2018-10-11

申请号：US15479439

申请日：2017-04-05

Applicant: General Electric Company

Inventor： Scott Alan Gold ,  Thomas Graham Spears ,  David Henry Abbott

IPC: B29C67/00 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00 ,  B28B1/00 ,  B22F3/105

Abstract: A method for additively manufacturing a component is provided. The method includes additively manufacturing an identifying region of the component including localized density variations that define a component identifier of the component. The localized density variations may be formed using two materials having different densities, by manipulating an energy source to underexpose or overexpose a layer of powder, or by laser shock peening the component during the additive manufacturing process. This method generates a three-dimensional unique component identifier that may be invisible to the naked eye and detectable only through interrogation by a scanning device, such as an x-ray computed tomography device. The component identifier may be stored in a database as a reference identifier and may be used for authenticating components.

公开(公告)号：US11446766B2

公开(公告)日：2022-09-20

申请号：US16798505

申请日：2020-02-24

Applicant: General Electric Company

Inventor： Todd Jay Rockstroh ,  Michael Francis Xavier Gigliotti ,  William Thomas Carter ,  David Henry Abbott ,  Rajendra Madhukar Kelkar

IPC: B33Y30/00 ,  B23K26/34 ,  B23K26/342 ,  C30B29/52 ,  B33Y10/00 ,  C30B11/00 ,  B22F10/20 ,  B33Y80/00 ,  B23K26/144 ,  B23K26/70 ,  B23K26/08 ,  C30B11/02 ,  C30B28/06 ,  H05B3/00 ,  H05B6/10 ,  B22F10/30

Abstract: A method of making a component includes: depositing a metallic powder on a workplane; directing a beam from a directed energy source to fuse the powder in a pattern corresponding to a cross-sectional layer of the component; repeating in a cycle the steps of depositing and fusing to build up the component in a layer-by layer fashion; and during the cycle of depositing and melting, using an external heat control apparatus separate from the directed energy source to maintain a predetermined temperature profile of the component, such that the resulting component has a directionally-solidified or single-crystal microstructure.

公开(公告)号：US11426792B2

公开(公告)日：2022-08-30

申请号：US17000888

申请日：2020-08-24

Applicant: General Electric Company

Inventor： Zhiwei Wu ,  Yanmin Li ,  David Henry Abbott ,  Xiaobin Chen ,  Thomas Froats Broderick ,  Judson Sloan Marte ,  Andrew Philip Woodfield ,  Eric Allen Ott

IPC: B22F5/00 ,  B22F3/105 ,  B22F3/12 ,  B22F3/15 ,  B22F3/02 ,  B22F3/04 ,  B22F3/26 ,  B22F7/04 ,  B23K15/00 ,  B22F10/20 ,  B22F10/00 ,  B23K26/34 ,  B33Y10/00

Abstract: A method of manufacturing a three-dimensional target object may include forming a shell from loose machining powder using an additive manufacturing process and subjecting the shell to a densification process to form a target object. The shell may define an enclosure that contains additional machining powder. The densification process may include causing metallurgical bonding between the shell and additional machining powder contained in the enclosure defined by the shell and shrinking and/or distorting the shape of the shell to conform the target object to a three-dimensional model for the target object. The shell may include a plurality of layers and/or parts that differ at least in respect of density. The plurality of layers and/or parts may be configured based at least in part on the shrinking and/or distorting to the shape of the shell needed to conform the target object to the three-dimensional model for the target object.

公开(公告)号：US20200298341A1

公开(公告)日：2020-09-24

申请号：US16798505

申请日：2020-02-24

Applicant: General Electric Company

Inventor： Todd Jay Rockstroh ,  Michael Francis Xavier Gigliotti ,  William Thomas Carter ,  David Henry Abbott ,  Rajendra Machukar Kelkar

IPC: B23K26/342 ,  C30B29/52 ,  B33Y10/00 ,  B33Y30/00 ,  B22F3/105 ,  C30B11/00 ,  B33Y80/00 ,  B23K26/144 ,  B23K26/70 ,  B23K26/08 ,  C30B11/02 ,  C30B28/06 ,  H05B3/00 ,  H05B6/10

Abstract: A method of making a component includes: depositing a metallic powder on a workplane; directing a beam from a directed energy source to fuse the powder in a pattern corresponding to a cross-sectional layer of the component; repeating in a cycle the steps of depositing and fusing to build up the component in a layer-by layer fashion; and during the cycle of depositing and melting, using an external heat control apparatus separate from the directed energy source to maintain a predetermined temperature profile of the component, such that the resulting component has a directionally-solidified or single-crystal microstructure.

公开(公告)号：US10703086B2

公开(公告)日：2020-07-07

申请号：US15479454

申请日：2017-04-05

Applicant: General Electric Company

Inventor： Scott Alan Gold ,  Thomas Graham Spears ,  David Henry Abbott

IPC: B33Y80/00 ,  B33Y50/02 ,  G07D7/06 ,  B29C64/153 ,  B29C64/20 ,  G07D7/2033

Abstract: A system and method for authenticating an additively manufactured component is provided. The method includes locating an identifying region of the component that includes localized density variations that define a component identifier. The method further includes interrogating the identifying region of the component using a scanning device such as an x-ray computed tomography device to obtain the component identifier. The method further includes obtaining a reference identifier from a database, comparing the component identifier to the reference identifier, and determining that the component is authentic if the component identifier matches the reference identifier.

公开(公告)号：US20210039169A1

公开(公告)日：2021-02-11

申请号：US17000888

申请日：2020-08-24

Applicant: General Electric Company

Inventor： Zhiwei Wu ,  Yanmin Li ,  David Henry Abbott ,  Xiaobin Chen ,  Thomas Froats Broderick ,  Judson Sloan Marte ,  Andrew Philip Woodfield ,  Eric Allen Ott

IPC: B22F5/00 ,  B22F3/105 ,  B22F3/12 ,  B22F3/15 ,  B22F3/02 ,  B22F3/04 ,  B22F3/26 ,  B22F7/04 ,  B23K15/00

Abstract: A method of manufacturing a three-dimensional target object may include forming a shell from loose machining powder using an additive manufacturing process and subjecting the shell to a densification process to form a target object. The shell may define an enclosure that contains additional machining powder. The densification process may include causing metallurgical bonding between the shell and additional machining powder contained in the enclosure defined by the shell and shrinking and/or distorting the shape of the shell to conform the target object to a three-dimensional model for the target object. The shell may include a plurality of layers and/or parts that differ at least in respect of density. The plurality of layers and/or parts may be configured based at least in part on the shrinking and/or distorting to the shape of the shell needed to conform the target object to the three-dimensional model for the target object.

公开(公告)号：US10780501B2

公开(公告)日：2020-09-22

申请号：US14630108

申请日：2015-02-24

Applicant: General Electric Company

Inventor： Zhiwei Wu ,  Yanmin Li ,  David Henry Abbott ,  Xiaobin Chen ,  Thomas Froats Broderick ,  Judson Sloan Marte ,  Andrew Philip Woodfield ,  Eric Allen Ott

IPC: B22F5/00 ,  B22F3/15 ,  B22F3/12 ,  B33Y10/00 ,  B22F3/105 ,  B22F3/02 ,  B22F3/04 ,  B22F3/26 ,  B22F7/04 ,  B23K15/00

Abstract: A method for manufacturing a three-dimensional part. The method includes: performing partial densification processing on loose machining powder, to form a densified and sealed enclosure, where there is still loose machining powder accommodated inside the enclosure; and performing overall densification processing on the enclosure and the machining powder inside the enclosure, so as to implement metallurgical bonding between the machining powder inside the enclosure and the enclosure during the densification, thereby forming a target three-dimensional part.