公开(公告)号：US20180293592A1

公开(公告)日：2018-10-11

申请号：US15479399

申请日：2017-04-05

Applicant: General Electric Company

Inventor： Scott Alan Gold ,  Thomas Graham Spears

IPC: G06Q30/00 ,  B29C67/00 ,  B22F3/105 ,  B33Y10/00 ,  C23C16/04

Abstract: A system and method for additively manufacturing a component including features for part identification are provided. The method includes selectively depositing a contrast agent on a cross sectional layer to define a component identifier of the component and directing energy from an energy source onto the contrast agent to fuse the contrast agent and the cross sectional layer. The contrast agent may be an x-ray emission contrast agent that is read using an x-ray emission spectroscopy method, an infrared contrast agent that is read using an infrared camera or an infrared scanner, or a radioactive contrast agent that is read using a gamma ray spectrometer.

公开(公告)号：US20170146488A1

公开(公告)日：2017-05-25

申请号：US14946401

申请日：2015-11-19

Applicant: General Electric Company

Inventor： Scott Alan Gold ,  Thomas Graham Spears

IPC: G01N29/02 ,  G01N29/24

CPC classification number: G01N29/02 ,  B22F3/1055 ,  B22F2003/1057 ,  B22F2999/00 ,  B28B1/001 ,  B29C64/153 ,  B29C64/386 ,  B33Y50/00 ,  B33Y50/02 ,  G01N29/2418 ,  G01N29/2431 ,  G01N29/4427 ,  G01N2291/0252 ,  G01N2291/267 ,  Y02P10/295 ,  B22F2202/01 ,  B22F2203/03

Abstract: A method of monitoring an additive manufacturing process in which a directed energy source is used to create a weld pool at an exposed build surface of a mass of powdered material, and selectively fuse the powdered material to form a workpiece, the method including measuring acoustic energy generated by the weld pool to generate a measured acoustic profile.

公开(公告)号：US11926106B2

公开(公告)日：2024-03-12

申请号：US17374049

申请日：2021-07-13

Applicant: General Electric Company

Inventor： Scott Alan Gold ,  Thomas Graham Spears

IPC: B33Y80/00 ,  B22F10/25 ,  B22F10/28 ,  B22F10/36 ,  B22F10/38 ,  B29C64/153 ,  B29C64/386 ,  B29C64/40 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y30/00

CPC classification number: B29C64/40 ,  B22F10/25 ,  B22F10/28 ,  B22F10/36 ,  B22F10/38 ,  B29C64/153 ,  B29C64/386 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y30/00 ,  Y02P10/25

Abstract: An additively manufactured component and a method for manufacturing the same are provided. The additively manufactured component includes a cross sectional layer having a surface surrounding the cross sectional layer. The cross sectional layer is formed by moving a focal point of an energy source over a bed of additive material. A surface irregularity is formed on the surface by manipulating the energy level of the energy source. The surface may include a datum feature positioned at a predetermined location relative to the surface irregularity and the surface irregularity may be greater than a surface roughness of the surface but less than one millimeter.

公开(公告)号：US11090727B2

公开(公告)日：2021-08-17

申请号：US15479339

申请日：2017-04-05

Applicant: General Electric Company

Inventor： Scott Alan Gold ,  Thomas Graham Spears

IPC: B22F10/20 ,  B33Y10/00 ,  B29C64/153 ,  B33Y50/02 ,  B33Y80/00 ,  B29C64/40 ,  B29C64/386 ,  B33Y30/00 ,  B33Y70/00 ,  B22F10/30

Abstract: An additively manufactured component and a method for manufacturing the same are provided. The additively manufactured component includes a cross sectional layer having a surface surrounding the cross sectional layer. The cross sectional layer is formed by moving a focal point of an energy source over a bed of additive material. A surface irregularity is formed on the surface by manipulating the energy level of the energy source. The surface may include a datum feature positioned at a predetermined location relative to the surface irregularity and the surface irregularity may be greater than a surface roughness of the surface but less than one millimeter.

公开(公告)号：US20210178480A1

公开(公告)日：2021-06-17

申请号：US16761644

申请日：2018-11-02

Applicant: General Electric Company

Inventor： Justin Mamrak ,  MacKenzie Ryan Redding ,  Thomas Graham Spears

IPC: B22F10/366 ,  B29C64/165 ,  B29C64/268 ,  B29C64/393 ,  B22F10/14 ,  B22F12/41 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y30/00

Abstract: A method, apparatus, and program for additive manufacturing. The additive manufacturing method may include solidifying at least a portion of a first layer (601) of build material (416) within a first scan region (902A). At least one of a build unit (400) and a build platform (310) may be moved to solidify at least a portion of the first layer (601) of build material (416) within a second scan region (902B). A second layer (602) of build material (416) may be provided over at least a portion of the first scan region (902A) and the second scan region (902B). A second layer (602) of build material (416) may be solidified within at least a portion of the third scan region (902C), the third scan region (902C) may at least partially overlap and may be offset with relation to the first scan region (902A).

公开(公告)号：US11020907B2

公开(公告)日：2021-06-01

申请号：US16219474

申请日：2018-12-13

Applicant: General Electric Company

Inventor： Thomas Graham Spears

IPC: B29C64/393 ,  G06T7/73 ,  G06T7/48 ,  B29C64/153 ,  G06T7/00 ,  B33Y10/00 ,  B33Y50/02

Abstract: A method of controlling an additive manufacturing process in which a directed energy source is used to selectively melt material to form a workpiece, forming a melt pool in the process of melting, the method comprising: using an imaging apparatus to generate an image of the melt pool comprising an array of individual image elements, the image including a measurement of at least one physical property for each of the individual image elements; from the measurements, mapping a melt pool boundary of the melt pool; computing a fractal dimension of the melt pool; and controlling at least one aspect of the additive manufacturing process with reference to the fractal dimension.

公开(公告)号：US10828836B2

公开(公告)日：2020-11-10

申请号：US16219448

申请日：2018-12-13

Applicant: General Electric Company

Inventor： Thomas Graham Spears

IPC: B29C64/393 ,  B29C64/153 ,  G06T7/40 ,  B33Y10/00 ,  B33Y50/02 ,  G06T7/73 ,  G06T7/00 ,  B23K9/04 ,  B23K9/09

Abstract: A method of controlling an additive manufacturing process in which a directed energy source is used to selectively melt material to form a workpiece, forming a melt pool in the process of melting, the method including: using an imaging apparatus to generate an image of the melt pool comprising an array of individual image elements, the image including a measurement of at least one physical property for each of the individual image elements; from the measurements, mapping a melt pool boundary of the melt pool; and controlling at least one aspect of the additive manufacturing process with reference to the melt pool boundary.

公开(公告)号：US10675683B2

公开(公告)日：2020-06-09

申请号：US15059105

申请日：2016-03-02

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Shane Matthew Gillespie ,  James Shealy ,  Scott Alan Gold ,  Thomas Graham Spears

IPC: B29C67/00 ,  B22F3/105 ,  B28B1/00 ,  C04B35/622 ,  B29C64/245 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00

Abstract: A method and apparatus for additive manufacturing is provided whereby a curtain of powder is provided adjacent a vertically oriented build plate, and a laser melts or sinters the powder over a region of the build plate. The curtain of powder is moved relative to the build plate to maintain the same distance between the curtain and the previously deposited layer, and the process repeated to provide a three dimensional structure on the build plate.

公开(公告)号：US20170242424A1

公开(公告)日：2017-08-24

申请号：US15048536

申请日：2016-02-19

Applicant: General Electric Company

Inventor： Thomas Graham Spears

IPC: G05B19/4099

CPC classification number: G05B19/4099 ,  B22F3/1055 ,  B22F2003/1057 ,  B22F2999/00 ,  B23K26/032 ,  B23K26/082 ,  B23K26/342 ,  B29C64/268 ,  B29C64/386 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02 ,  G05B2219/49023 ,  Y02P10/295 ,  B22F2203/03

Abstract: A method of monitoring laser power in an additive manufacturing process in which a build beam generated by a laser source is used to selectively fuse or cure material to form a workpiece. The method includes: splitting off a predetermined percentage of the build beam to define a sample beam, and directing the sample beam to a sensor; using the sensor to generate a signal proportional to the power of the sample beam; and scaling the signal from the sensor to generate a laser power measurement representative of a power level of the build beam.

公开(公告)号：US20170146489A1

公开(公告)日：2017-05-25

申请号：US14946451

申请日：2015-11-19

Applicant: General Electric Company

Inventor： MacKenzie Ryan Redding ,  Scott Alan Gold ,  Thomas Graham Spears

IPC: G01N29/02 ,  G01N29/24

CPC classification number: G01N29/02 ,  B22F3/1055 ,  B22F2003/1057 ,  B22F2999/00 ,  B28B1/001 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02 ,  G01N29/043 ,  G01N29/0672 ,  G01N29/221 ,  G01N29/2418 ,  G01N2291/0231 ,  G01N2291/267 ,  Y02P10/295 ,  B22F2203/03 ,  B22F2202/01

Abstract: A method for inspecting an additive manufacturing process in which a directed energy source is used to create a weld pool at an exposed build surface of a mass of powdered material, and selectively fuse the powdered material to form a workpiece. The inspection method includes: using a noncontact method to generate an acoustic wave in the build surface; using a noncontact method to measure displacement of the build surface in response to the acoustic wave; and determining at least one sub-surface material property of the workpiece by analyzing the displacement of the build surface.