公开(公告)号：US12023739B2

公开(公告)日：2024-07-02

申请号：US16761691

申请日：2018-11-02

Applicant: General Electric Company

Inventor： Justin Mamrak ,  MacKenzie Ryan Redding

IPC: B33Y10/00 ,  B22F5/00 ,  B22F10/28 ,  B22F10/47 ,  B22F12/37 ,  B23K26/08 ,  B23K26/082 ,  B23K26/14 ,  B23K26/342 ,  B33Y30/00 ,  B33Y40/00 ,  B22F10/14 ,  B22F12/00 ,  B22F12/67

CPC classification number: B22F5/009 ,  B22F10/28 ,  B22F10/47 ,  B22F12/37 ,  B23K26/082 ,  B23K26/0823 ,  B23K26/1464 ,  B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B22F10/14 ,  B22F12/226 ,  B22F12/67

Abstract: An additive manufacturing apparatus is provided and may include at least one build unit; a build platform; and at least one collector positioned on the apparatus such that the at least one collector contacts an outer surface of a build wall as the build wall is formed during a build. Methods are also provided for manufacturing at least one object.

公开(公告)号：US11986884B2

公开(公告)日：2024-05-21

申请号：US16761717

申请日：2018-11-02

Applicant: General Electric Company

Inventor： MacKenzie Ryan Redding ,  Andrew David Simpson ,  Justin Mamrak

IPC: B22F5/00 ,  B22F5/10 ,  B22F10/28 ,  B22F10/50 ,  B22F12/00 ,  B22F12/37 ,  B33Y10/00 ,  B33Y30/00 ,  B22F10/73 ,  B22F12/70

CPC classification number: B22F5/009 ,  B22F5/106 ,  B22F10/28 ,  B22F10/50 ,  B22F12/22 ,  B22F12/37 ,  B22F10/73 ,  B22F12/70 ,  B33Y10/00 ,  B33Y30/00

Abstract: Additive manufacturing apparatus, along with methods of forming an object therewith, are provided. The additive manufacturing apparatus may include at least one build unit; a build platform (such as a rotating build platform); and a pair of collectors positioned on the apparatus such that a first collector contacts an outer surface of an object as it is formed on the build platform and a second collector contacts an inner surface of the object as it is formed on the build platform.

公开(公告)号：US11945158B2

公开(公告)日：2024-04-02

申请号：US16761656

申请日：2018-11-02

Applicant: General Electric Company

Inventor： Justin Mamrak ,  Michael Thomas Gansler

IPC: B29C64/153 ,  B22F10/28 ,  B22F10/36 ,  B22F10/366 ,  B22F12/37 ,  B22F12/52 ,  B22F12/67 ,  B22F12/70 ,  B29C64/268 ,  B33Y10/00

CPC classification number: B29C64/153 ,  B22F10/28 ,  B22F10/366 ,  B29C64/268 ,  B33Y10/00 ,  B22F10/36 ,  B22F12/37 ,  B22F12/52 ,  B22F12/67 ,  B22F12/70

Abstract: A method, apparatus, and program for additive manufacturing. In one aspect, the method comprises: forming an at least partially solidified portion within a first scan region (801), wherein the solidified portion within the first scan region (801) is formed by irradiating a build material along a first irradiation path (811). A second portion of a build material may be irradiated along a second irradiation path (813), wherein the second scan region (803) is offset with respect to the first scan region (801) thereby defining an offset region (802). The offset region (802) is at least partially solidified by the first irradiation path (811) and the second irradiation path (813) and a reference line (819) intersects the first irradiation path (811) and the second irradiation path (813) within the offset region (802), wherein the reference line (819) is substantially parallel to a side (810) of the first scan region (801).

公开(公告)号：US20230381864A1

公开(公告)日：2023-11-30

申请号：US18448458

申请日：2023-08-11

Applicant: General Electric Company ,  Concept Laser GmbH

Inventor： Fabian Zeulner ,  Christian Dicken ,  Justin Mamrak ,  MacKenzie Ryan Redding ,  Bertram Gaerber

IPC: B22F10/85 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F12/49 ,  B22F12/41 ,  B22F12/90 ,  B22F10/28

CPC classification number: B22F10/85 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F12/49 ,  B22F12/41 ,  B22F12/90 ,  B22F10/28

Abstract: An additive manufacturing machine includes an energy beam system configured to emit an energy beam utilized in an additive manufacturing process, and first and second optical elements utilized by, or defining a portion of, the energy beam system and/or an imaging system of the additive manufacturing machine. The imaging system monitors one or more operating parameters of the additive manufacturing process. A light source is configured to emit an assessment beam that follows an optical path incident upon the first and second optical elements. One or more light sensors detect a reflected beam that is either internally reflected by the first optical element or reflectively propagated between the first and second optical elements. A control system determines, based at least in part on assessment data comprising data from the one or more light sensors, whether at least one of the first and second optical elements exhibits an optical anomaly.

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：US20210283692A1

公开(公告)日：2021-09-16

申请号：US16332154

申请日：2017-12-07

Applicant: General Electric Company

Inventor： MacKenzie Ryan Redding ,  Justin Mamrak ,  Zachary David Fieldman

IPC: B22F12/00 ,  B29C64/40 ,  B29C64/153

Abstract: The present disclosure generally relates to additive manufacturing systems and methods on a large-scale format. One aspect involves a build unit that can be moved around in three dimensions by a positioning system, building separate portions of a large object. The build unit has an energy directing device that directs, e.g., laser or e-beam irradiation onto a powder layer. In the case of laser irradiation, the build volume may have a gasflow device that provides laminar gas flow to a laminar flow zone above the layer of powder. This allows for efficient removal of the smoke, condensates, and other impurities produced by irradiating the powder (the “gas plume”) without excessively disturbing the powder layer. The build unit may also have a recoater that allows it to selectively deposit particular quantities of powder in specific locations over a work surface to build large, high quality, high precision objects.

公开(公告)号：US11103928B2

公开(公告)日：2021-08-31

申请号：US16002041

申请日：2018-06-07

Applicant: GENERAL ELECTRIC COMPANY

Inventor： MacKenzie Ryan Redding ,  Zachary David Fieldman ,  Justin Mamrak

IPC: B22F3/105 ,  B33Y30/00 ,  B23K26/08 ,  B23K15/00 ,  B33Y50/02 ,  B33Y10/00 ,  B23K26/342 ,  B23K26/14 ,  B23K37/02 ,  B22F12/00 ,  B23K26/082 ,  B23K26/00 ,  B23K26/12 ,  B29C64/153 ,  B29C64/371 ,  B33Y40/00 ,  B22F12/70 ,  B23K103/00 ,  B23K103/18 ,  B22F10/10

Abstract: The present disclosure generally relates to additive manufacturing systems and methods on a large-scale format. One aspect involves a build unit that can be moved around in three dimensions by a positioning system, building separate portions of a large object. The build unit has an energy directing device that directs, e.g., laser or e-beam irradiation onto a powder layer. In the case of laser irradiation, the build volume may have a gasflow device that provides laminar gas flow to a laminar flow zone above the layer of powder. This allows for efficient removal of the smoke, condensates, and other impurities produced by irradiating the powder (the “gas plume”) without excessively disturbing the powder layer. The build unit may also have a recoater that allows it to selectively deposit particular quantities of powder in specific locations over a work surface to build large, high quality, high precision objects.

公开(公告)号：US11072025B2

公开(公告)日：2021-07-27

申请号：US15389986

申请日：2016-12-23

Applicant: General Electric Company

Inventor： Andrew J. Martin ,  Mackenzie Ryan Redding ,  Justin Mamrak

IPC: B22F3/105 ,  B23K26/042 ,  B23K26/342 ,  B23K26/70 ,  B33Y10/00 ,  B33Y50/02 ,  B22F10/20 ,  B23K15/00 ,  B23K26/06 ,  B23K26/14 ,  B23K26/00 ,  B23K26/03 ,  B23K26/082 ,  B23K26/12 ,  B22F10/30

Abstract: A method of controlling an additive manufacturing process in which one or more energy beams are used to selectively fuse a powder to form a workpiece, in the presence of one or more plumes generated by interaction of the one or more energy beams with the powder. The method includes controlling at least one of: a trajectory of the one or more plumes, and the one or more energy beams, so as to prevent the one or more energy beams from intersecting the one or more plumes.

公开(公告)号：US20210178665A1

公开(公告)日：2021-06-17

申请号：US16761656

申请日：2018-11-02

Applicant: General Electric Company

Inventor： Justin Mamrak ,  Michael Thomas Gansler

IPC: B29C64/153 ,  B22F10/20 ,  B29C64/268 ,  B22F10/30

Abstract: A method, apparatus, and program for additive manufacturing. In one aspect, the method comprises: forming an at least partially solidified portion within a first scan region (801), wherein the solidified portion within the first scan region (801) is formed by irradiating a build material along a first irradiation path (811). A second portion of a build material may be irradiated along a second irradiation path (813), wherein the second scan region (803) is offset with respect to the first scan region (801) thereby defining an offset region (802). The offset region (802) is at least partially solidified by the first irradiation path (811) and the second irradiation path (813) and a reference line (819) intersects the first irradiation path (811) and the second irradiation path (813) within the offset region (802), wherein the reference line (819) is substantially parallel to a side (810) of the first scan region (801).

公开(公告)号：US11014189B2

公开(公告)日：2021-05-25

申请号：US15990142

申请日：2018-05-25

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Rachel Wyn Levine ,  Christian Stevenson ,  Justin Mamrak ,  MacKenzie Ryan Redding

IPC: B23K15/00 ,  B33Y10/00 ,  B33Y50/02 ,  B23K26/342

Abstract: The present disclosure generally relates to methods of additive manufacturing with control of the energy beam incidence angle that allows for aligning the laser beam angle to directly oppose the building direction of an angled wall. The method includes building an object in an additive manufacturing powder bed where the object includes a surface that is defined by a build vector projecting outward relative to the build plate center at an angle Φ relative to normal of the build plate such that 90°>Φ>0° and the directed energy beam forms an angle θL2 relative to normal of the build plate such that 270°>θL2>180°, wherein θL2−Φ=180°±Δ, and Δ