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：US11318535B2

公开(公告)日：2022-05-03

申请号：US15390133

申请日：2016-12-23

Applicant: General Electric Company

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

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/14 ,  B23K26/70 ,  B22F10/20 ,  B23K26/144 ,  B29C64/371 ,  B29C64/393 ,  B29C64/153 ,  B22F10/30

Abstract: A method is provided for controlling an additive manufacturing process in which one or more energy beams are used to selectively fuse a powder contained in an additive manufacturing machine having a gas flow therein in order 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, wherein the process is controlled by an electronic controller. The method includes: performing a build process to form a workpiece using a set of initial process parameters; sensing a condition of the finished workpiece; using the electronic controller, comparing the condition of the finished workpiece to a predetermined standard; using the electronic controller, changing one or more of the initial process parameters to define a set of revised process parameters; and performing a subsequent build process using the revised process parameters.

公开(公告)号：US20180178284A1

公开(公告)日：2018-06-28

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 ,  B33Y10/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/042 ,  B23K26/70

CPC classification number: B22F3/1055 ,  B22F2003/1057 ,  B22F2998/10 ,  B22F2999/00 ,  B23K15/0086 ,  B23K15/0093 ,  B23K26/0006 ,  B23K26/03 ,  B23K26/042 ,  B23K26/0604 ,  B23K26/0643 ,  B23K26/082 ,  B23K26/127 ,  B23K26/14 ,  B23K26/342 ,  B23K26/70 ,  B33Y10/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2203/03

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：US12005637B2

公开(公告)日：2024-06-11

申请号：US16761632

申请日：2018-11-02

Applicant: General Electric Company

Inventor： Justin Mamrak ,  Mackenzie Ryan Redding

IPC: B29C64/153 ,  B22F10/32 ,  B22F10/322 ,  B22F10/50 ,  B22F12/00 ,  B22F12/20 ,  B22F12/49 ,  B22F12/70 ,  B29C64/371 ,  B33Y10/00 ,  B33Y30/00 ,  B22F10/14 ,  B22F10/25 ,  B22F10/28 ,  B22F10/77 ,  B22F12/67

CPC classification number: B29C64/153 ,  B22F10/32 ,  B22F10/322 ,  B22F10/50 ,  B22F12/20 ,  B22F12/22 ,  B22F12/49 ,  B22F12/70 ,  B29C64/371 ,  B33Y10/00 ,  B33Y30/00 ,  B22F10/14 ,  B22F10/25 ,  B22F10/28 ,  B22F10/77 ,  B22F12/67 ,  B22F2201/02 ,  B22F2201/11

Abstract: An additive manufacturing machine (900) includes a plurality of subsystems, such as a condensate evacuation subsystem (940) for removing byproducts of the additive manufacturing products near a powder bed, a closed loop subsystem (960) for cleaning contaminants from sensitive machine components (964), and/or an electronics cooling subsystem (984) for cooling an electronics compartment (980). Each subsystem (940, 960, 984) may include a dedicated gas circulation loop (942, 966, 986) that is operably coupled to a gas circulation device (944, 968, 988) for urging a clean flow of gas (946, 962, 990) to each of the subsystems (940, 960, 984) to perform a particular function.

公开(公告)号：US20180178287A1

公开(公告)日：2018-06-28

申请号：US15390133

申请日：2016-12-23

Applicant: General Electric Company

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

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/14 ,  B23K26/70

CPC classification number: B22F3/1055 ,  B22F2003/1057 ,  B22F2203/11 ,  B22F2998/10 ,  B22F2999/00 ,  B23K26/1437 ,  B23K26/144 ,  B23K26/342 ,  B23K26/70 ,  B29C64/153 ,  B29C64/371 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2203/03

Abstract: A method is provided for controlling an additive manufacturing process in which one or more energy beams are used to selectively fuse a powder contained in an additive manufacturing machine having a gas flow therein in order 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, wherein the process is controlled by an electronic controller. The method includes: performing a build process to form a workpiece using a set of initial process parameters; sensing a condition of the finished workpiece; using the electronic controller, comparing the condition of the finished workpiece to a predetermined standard; using the electronic controller, changing one or more of the initial process parameters to define a set of revised process parameters; and performing a subsequent build process using the revised process parameters.

公开(公告)号：US20180178286A1

公开(公告)日：2018-06-28

申请号：US15390089

申请日：2016-12-23

Applicant: General Electric Company

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

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/70 ,  B23K26/042

CPC classification number: B22F3/1055 ,  B22F2003/1057 ,  B22F2203/03 ,  B22F2998/10 ,  B22F2999/00 ,  B23K15/0086 ,  B23K15/0093 ,  B23K26/0006 ,  B23K26/03 ,  B23K26/042 ,  B23K26/0604 ,  B23K26/0643 ,  B23K26/082 ,  B23K26/127 ,  B23K26/14 ,  B23K26/342 ,  B23K26/70 ,  B29C64/153 ,  B29C64/371 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  Y02P10/295

Abstract: A method of monitoring 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 using at least one sensor to generate at least one signal representative of a trajectory of one or more of the plumes.

公开(公告)号：US20180178285A1

公开(公告)日：2018-06-28

申请号：US15390055

申请日：2016-12-23

Applicant: General Electric Company

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

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/14

CPC classification number: B22F3/1055 ,  B22F2003/1057 ,  B22F2999/00 ,  B23K26/03 ,  B23K26/0604 ,  B23K26/082 ,  B23K26/123 ,  B23K26/127 ,  B23K26/16 ,  B23K26/342 ,  B33Y10/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2203/03

Abstract: A method of controlling an additive manufacturing process in which one or more energy beams are used to selectively fuse a powder contained in a build chamber having a gas flow therein in order 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 a trajectory of at least one of the plumes, so as to prevent the one or more energy beams from intersecting the one or more plumes.

公开(公告)号：US12162073B2

公开(公告)日：2024-12-10

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 ,  B22F10/28 ,  B22F12/41 ,  B22F12/49 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/31 ,  G02B26/10

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：US12076789B2

公开(公告)日：2024-09-03

申请号：US16332154

申请日：2017-12-07

Applicant: General Electric Company

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

IPC: B29C64/153 ,  B22F12/67 ,  B29C64/40 ,  B22F10/28 ,  B22F10/36 ,  B22F10/38 ,  B22F10/47 ,  B22F12/44 ,  B22F12/49 ,  B22F12/52 ,  B22F12/70 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00

CPC classification number: B22F12/67 ,  B29C64/153 ,  B29C64/40 ,  B22F10/28 ,  B22F10/36 ,  B22F10/385 ,  B22F10/47 ,  B22F12/44 ,  B22F12/49 ,  B22F12/52 ,  B22F12/70 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  Y02P10/25

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：US11987005B2

公开(公告)日：2024-05-21

申请号：US17098625

申请日：2020-11-16

Applicant: Concept Laser GmbH ,  General Electric Company

Inventor： Fabian Zeulner ,  Rachel Wyn Levine ,  Mackenzie Ryan Redding

IPC: B29C64/393 ,  B29C64/153 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/153 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: An additive manufacturing machine includes an energy beam system situated in a fixed position relative to a reference plane coinciding with an expected location of a build plane, an energy beam system with an irradiation device configured to generate an energy beam and to direct the energy beam upon the build plane, and a position measurement system configured to determine a position of the build plane. A position measurement assembly includes one or more position sensors, and one or more mounting brackets configured to attach the one or more position sensors to an energy beam system of an additive manufacturing machine. The position measurement assembly is configured to determine a position of a build plane with the energy beam system situated in a fixed position relative to a reference plane coinciding with an expected location of the build plane.