公开(公告)号：US20220395904A1

公开(公告)日：2022-12-15

申请号：US17348312

申请日：2021-06-15

Applicant: ARCAM AB

Inventor： Tomas Lock ,  Björn Löfving

IPC: B22F10/31 ,  B23K15/00 ,  G01J5/00 ,  G01J5/20 ,  B33Y30/00 ,  B33Y50/00 ,  B22F12/41 ,  B22F10/80

Abstract: Devices, systems, and methods for calibrating for an electron beam additive manufacturing system. The electron beam manufacturing system includes electron beam guns. A calibration system includes an optical pyrometer. The optical pyrometer captures thermal radiation emitted from raw material. An analysis component is communicatively coupled to the optical pyrometer. The analysis component is programmed to determine calibration parameters from information from the optical pyrometer and a phase transition temperature.

公开(公告)号：US12140377B2

公开(公告)日：2024-11-12

申请号：US17287760

申请日：2019-04-02

Applicant: ARCAM AB

Inventor： Tomas Lock ,  Björn Löfving ,  Markus Ramsperger

IPC: G01N21/15 ,  B22F10/20 ,  B22F10/28 ,  B22F10/85 ,  B22F12/00 ,  B22F12/82 ,  B22F12/90 ,  F27D21/02 ,  G02B27/00 ,  B22F10/32 ,  B22F12/41 ,  B22F12/50 ,  B22F12/55 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00

Abstract: A device for viewing and/or illuminating a target surface in an evacuated chamber having condensable vapor therein, the device comprising: a first section with a through hole having a first end with a first opening and a second end with a second opening; and a second section having a chamber comprising a first portion with a first opening, a second portion with a second opening and a gas inlet, where the second opening is covered with a first window, said first section is attached with the first end to the first portion of the chamber allowing free passage between the chamber and the first section, said gas inlet is connectable to a gas reservoir for feeding a gas into the chamber for prohibiting the first window in the chamber for being contaminated of the condensable vapor.

公开(公告)号：US12257626B2

公开(公告)日：2025-03-25

申请号：US17348312

申请日：2021-06-15

Applicant: ARCAM AB

Inventor： Tomas Lock ,  Björn Löfving

IPC: B22F10/31 ,  B22F10/80 ,  B22F12/41 ,  B23K15/00 ,  B33Y30/00 ,  B33Y50/00 ,  G01J5/00 ,  G01J5/20 ,  G01N25/02 ,  G01N25/04 ,  G01N25/72

Abstract: Devices, systems, and methods for calibrating for an electron beam additive manufacturing system. The electron beam manufacturing system includes electron beam guns. A calibration system includes an optical pyrometer. The optical pyrometer captures thermal radiation emitted from raw material. An analysis component is communicatively coupled to the optical pyrometer. The analysis component is programmed to determine calibration parameters from information from the optical pyrometer and a phase transition temperature.

公开(公告)号：US20210023617A1

公开(公告)日：2021-01-28

申请号：US16523484

申请日：2019-07-26

Applicant: ARCAM AB

Inventor： Björn Löfving ,  Kristofer Karlsson

IPC: B22F3/105 ,  B29C64/153 ,  G06K9/32

Abstract: Devices, systems, and methods for monitoring a powder layer in additive manufacturing are disclosed. A method of monitoring a powder layer includes receiving image data corresponding the powder layer supported by a powder bed within a build chamber from imaging devices, determining leading and trailing regions of interest located adjacent to a leading end and a trailing end of the moving powder distributor, respectively, the leading and trailing regions of interest moving according to movement of the moving powder distributor, selecting at least one point located in the leading region of interest from the image data, determining first characteristics of the point, when the point is located within the trailing region of interest, determining second characteristics of the point, and comparing the first characteristics to the second characteristics.

公开(公告)号：US11999102B2

公开(公告)日：2024-06-04

申请号：US18077381

申请日：2022-12-08

Applicant: Arcam AB

Inventor： Björn Löfving ,  Kristofer Karlsson

IPC: B29C64/153 ,  B22F10/00 ,  B22F10/28 ,  B22F10/37 ,  B22F10/85 ,  B22F12/60 ,  B22F12/67 ,  B22F12/90 ,  B33Y10/00 ,  G06V10/25 ,  B22F10/10 ,  B22F10/32 ,  B22F10/368 ,  B22F10/38 ,  B22F12/52 ,  B22F12/55 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/153 ,  B22F10/00 ,  B22F10/28 ,  B22F10/37 ,  B22F10/85 ,  B22F12/60 ,  B22F12/67 ,  B22F12/90 ,  B33Y10/00 ,  G06V10/25 ,  B22F10/10 ,  B22F10/32 ,  B22F10/368 ,  B22F10/38 ,  B22F12/52 ,  B22F12/55 ,  B33Y30/00 ,  B33Y50/02 ,  B22F2999/00 ,  B22F10/85 ,  B22F10/37 ,  B22F2203/03 ,  B22F2999/00 ,  B22F12/60 ,  B22F12/90 ,  B22F2203/11

Abstract: Devices, systems, and methods for monitoring a powder layer in additive manufacturing are disclosed. A method of monitoring a powder layer includes receiving image data corresponding the powder layer supported by a powder bed within a build chamber from imaging devices, determining leading and trailing regions of interest located adjacent to a leading end and a trailing end of the moving powder distributor, respectively, the leading and trailing regions of interest moving according to movement of the moving powder distributor, selecting at least one point located in the leading region of interest from the image data, determining first characteristics of the point, when the point is located within the trailing region of interest, determining second characteristics of the point, and comparing the first characteristics to the second characteristics.

公开(公告)号：US11541457B2

公开(公告)日：2023-01-03

申请号：US16523484

申请日：2019-07-26

Applicant: ARCAM AB

Inventor： Björn Löfving ,  Kristofer Karlsson

IPC: B29C67/00 ,  B22F10/00 ,  B29C64/153 ,  G06V10/25 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/10

Abstract: Devices, systems, and methods for monitoring a powder layer in additive manufacturing are disclosed. A method of monitoring a powder layer includes receiving image data corresponding the powder layer supported by a powder bed within a build chamber from imaging devices, determining leading and trailing regions of interest located adjacent to a leading end and a trailing end of the moving powder distributor, respectively, the leading and trailing regions of interest moving according to movement of the moving powder distributor, selecting at least one point located in the leading region of interest from the image data, determining first characteristics of the point, when the point is located within the trailing region of interest, determining second characteristics of the point, and comparing the first characteristics to the second characteristics.

公开(公告)号：US11338519B2

公开(公告)日：2022-05-24

申请号：US16523492

申请日：2019-07-26

Applicant: ARCAM AB

Inventor： Björn Löfving ,  Kristofer Karlsson

IPC: B29C64/393 ,  B29C64/153 ,  B29C64/245 ,  B29C64/255 ,  B29C64/268 ,  B29C64/205 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B22F10/85 ,  B29C64/386 ,  B22F12/30 ,  B22F12/50 ,  B22F10/28 ,  B22F10/80 ,  B22F10/37 ,  B22F12/90

Abstract: Devices, systems, and methods for monitoring a powder layer in additive manufacturing are disclosed. A method includes receiving leading and trailing image data from an image signal processor that is optically coupled to a plurality of leading and trailing optical fibers arranged on a moving powder distributor, the leading and trailing image data corresponding to images of the powder layer, selecting at least one point on the powder bed that is located within a leading region of interest, determining first characteristics of the point, when the point is located within a trailing region of interest due to movement of the moving powder distributor, determining second characteristics of the point, and comparing the first characteristics to the second characteristics to monitor the powder layer distributed by the moving powder distributor.

公开(公告)号：US20210023793A1

公开(公告)日：2021-01-28

申请号：US16523492

申请日：2019-07-26

Applicant: ARCAM AB

Inventor： Björn Löfving ,  Kristofer Karlsson

IPC: B29C64/393 ,  B29C64/153 ,  B29C64/205 ,  B29C64/245 ,  B29C64/255 ,  B29C64/268

Abstract: Devices, systems, and methods for monitoring a powder layer in additive manufacturing are disclosed. A method includes receiving leading and trailing image data from an image signal processor that is optically coupled to a plurality of leading and trailing optical fibers arranged on a moving powder distributor, the leading and trailing image data corresponding to images of the powder layer, selecting at least one point on the powder bed that is located within a leading region of interest, determining first characteristics of the point, when the point is located within a trailing region of interest due to movement of the moving powder distributor, determining second characteristics of the point, and comparing the first characteristics to the second characteristics to monitor the powder layer distributed by the moving powder distributor.