公开(公告)号：US11958111B2

公开(公告)日：2024-04-16

申请号：US17180994

申请日：2021-02-22

Applicant: General Electric Company

Inventor： David Alan Bartosik ,  Thomas Graham Spears

IPC: B22F12/41 ,  B22F10/36 ,  B22F10/85 ,  B22F12/70 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B22F10/36 ,  B22F10/85 ,  B22F12/41 ,  B22F12/70 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2201/12

Abstract: An additive manufacturing machine may include a beam source, a process chamber, a beam column operably coupled to the process chamber and/or defining a portion of the process chamber, and a gaseous ionization detector disposed about the beam column. The gaseous ionization detector may be configured to detect elementary particles corresponding to an ionizing gas ionized by an energy beam from the beam source. A method of additively manufacturing a three-dimensional object may include determining data from a gaseous ionization detector disposed about a beam column of an additive manufacturing machine, and additively manufacturing a three-dimensional object using the additive manufacturing machine based at least in part on the data from the gaseous ionization detector. A computer-readable medium may include computer-executable instructions, which when executed by a processor associated with an additive manufacturing machine, cause the additive manufacturing machine to perform a method in accordance with the present disclosure.

公开(公告)号：US11745426B2

公开(公告)日：2023-09-05

申请号：US16761644

申请日：2018-11-02

Applicant: General Electric Company

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

IPC: B29C64/268 ,  B22F10/14 ,  B22F10/28 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/165 ,  B22F12/41 ,  B22F10/366 ,  B22F12/37 ,  B22F12/67 ,  B22F12/70

CPC classification number: B29C64/268 ,  B22F10/14 ,  B22F10/28 ,  B22F10/366 ,  B22F12/41 ,  B29C64/165 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F12/37 ,  B22F12/67 ,  B22F12/70

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：US11679548B2

公开(公告)日：2023-06-20

申请号：US17092913

申请日：2020-11-09

Applicant: General Electric Company

Inventor： Thomas Graham Spears

IPC: B29C64/153 ,  B33Y10/00 ,  G06T7/73 ,  B29C64/393 ,  G06T7/00 ,  G06T7/40 ,  B22F12/90 ,  B22F10/31 ,  B33Y50/02 ,  B33Y50/00 ,  B22F10/28 ,  B22F12/00 ,  B22F12/67 ,  B22F12/70

CPC classification number: B29C64/153 ,  B22F10/31 ,  B22F12/90 ,  B29C64/393 ,  B33Y10/00 ,  G06T7/001 ,  G06T7/40 ,  G06T7/74 ,  B22F10/28 ,  B22F12/222 ,  B22F12/38 ,  B22F12/67 ,  B22F12/70 ,  B33Y50/02 ,  G06T2207/30144

Abstract: A method of controlling a manufacturing process in which directed energy selectively melts material, forming a melt pool. The method includes: generating an image having an array of individual image elements, the image including measurement, for each image element, of two or more physical properties from the group including: color, emission frequency, and sheen, the measurements collectively indicating presence of: liquid phase, melting, or incipient melting; from the measurements, mapping a boundary of the melt pool, wherein for each of the measurements that indicate liquid phase, melting, or incipient melting, corresponding image elements are defined to be inside the boundary, and wherein for each of the measurements that do not indicate liquid phase, melting, or incipient melting, the corresponding image elements are defined to be outside of the boundary; and controlling at least one aspect of the additive manufacturing process with reference to the boundary.

公开(公告)号：US11285671B2

公开(公告)日：2022-03-29

申请号：US16219575

申请日：2018-12-13

Applicant: General Electric Company

Inventor： Thomas Graham Spears

IPC: B29C64/393 ,  G06T7/73 ,  B29C64/153 ,  G06F17/14 ,  G06T7/00 ,  G06T7/40 ,  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 includes: 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; applying Green's theorem to the melt pool boundary; and controlling at least one aspect of the additive manufacturing process with reference to the Green's theorem application.

公开(公告)号：US10894299B2

公开(公告)日：2021-01-19

申请号：US15811293

申请日：2017-11-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Justin Mamrak ,  MacKenzie Ryan Redding ,  Thomas Graham Spears ,  Mark Kevin Meyer

IPC: B23K15/00 ,  B33Y10/00 ,  B33Y30/00 ,  B23K35/02 ,  B23K15/08 ,  B23K26/082 ,  B23K26/342 ,  B33Y70/00

Abstract: The present disclosure generally relates to methods and apparatuses for additive manufacturing using foil-based build materials. Such methods and apparatuses eliminate several drawbacks of conventional powder-based methods, including powder handling, recoater jams, and health risks. In addition, the present disclosure provides methods and apparatuses for compensation of in-process warping of build plates and foil-based build materials.

公开(公告)号：US10828723B2

公开(公告)日：2020-11-10

申请号：US15811313

申请日：2017-11-13

Applicant: GENERAL ELECTRIC COMPANY

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

IPC: B23K26/342 ,  B23K26/03 ,  B23K31/12 ,  B23K35/02 ,  B23K15/00 ,  B23K15/08 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B29C64/147 ,  B23P15/00 ,  B23K26/082 ,  B23K26/34 ,  B29C64/393

Abstract: The present disclosure generally relates to methods and apparatuses for additive manufacturing using foil-based build materials. Such methods and apparatuses eliminate several drawbacks of conventional powder-based methods, including powder handling, recoater jams, and health risks. In addition, the present disclosure provides methods and apparatuses for compensation of in-process warping of build plates and foil-based build materials, in-process monitoring, and closed loop control.

公开(公告)号：US20180293591A1

公开(公告)日：2018-10-11

申请号：US15479389

申请日：2017-04-05

Applicant: General Electric Company

Inventor： Thomas Graham Spears

IPC: G06Q30/00 ,  H04L9/14 ,  G06K19/14 ,  B33Y50/02 ,  G05B19/042 ,  B29C67/00 ,  B33Y10/00

Abstract: A system and method for manufacturing and authenticating an additively manufactured component are provided. The method includes additively manufacturing the component including a first component identifier. A second component identifier is generated using the first component identifier and an encryption key. The second component identifier is additively manufactured onto the component and the first and second component identifiers are stored in a database as an authenticating pair. An end user may determine that a component is authentic if it contains a first component identifier and a second component identifier that match an authenticating pair from the database.

公开(公告)号：US20180293372A1

公开(公告)日：2018-10-11

申请号：US15479352

申请日：2017-04-05

Applicant: General Electric Company

Inventor： Scott Alan Gold ,  Thomas Graham Spears

IPC: G06F21/44 ,  G06F17/30

CPC classification number: G06F21/44 ,  G06F16/955

Abstract: A system and method for authenticating an additively manufactured component are provided. The method includes locating an identifying region on the component which may be positioned at a predetermined location relative to an identifiable datum feature. The identifying region may be scanned to determine a component identifier of the component. A reference identifier may be obtained from a database and compared to the component identifier to determine whether the component is authentic.