公开(公告)号：US12019026B2

公开(公告)日：2024-06-25

申请号：US18136750

申请日：2023-04-19

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： Vivek R. Dave ,  Mark J. Cola ,  R. Bruce Madigan ,  Alberto Castro ,  Glenn Wikle ,  Lars Jacquemetton ,  Peter Campbell

IPC: G01N21/71 ,  B33Y30/00 ,  B33Y50/00 ,  G01N21/00 ,  H01L21/66 ,  G01N21/84 ,  G06N20/00

CPC classification number: G01N21/71 ,  B33Y30/00 ,  B33Y50/00 ,  G01N21/00 ,  H01L22/12 ,  G01N2021/8411 ,  G06N20/00

Abstract: This disclosure describes various system and methods for monitoring photons emitted by a heat source of an additive manufacturing device. Sensor data recorded while monitoring the photons can be used to predict metallurgical, mechanical and geometrical properties of a part produced during an additive manufacturing operation. In some embodiments, a test pattern can be used to calibrate an additive manufacturing device.

公开(公告)号：US20240302286A1

公开(公告)日：2024-09-12

申请号：US18661222

申请日：2024-05-10

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： Vivek R. Dave ,  Mark J. Cola ,  R. Bruce Madigan ,  Alberto Castro ,  Glenn Wikle ,  Lars Jacquemetton ,  Peter Campbell

IPC: G01N21/71 ,  B33Y30/00 ,  B33Y50/00 ,  G01N21/00 ,  G01N21/84 ,  G06N20/00 ,  H01L21/66

CPC classification number: G01N21/71 ,  B33Y30/00 ,  B33Y50/00 ,  G01N21/00 ,  H01L22/12 ,  G01N2021/8411 ,  G06N20/00

Abstract: This disclosure describes various system and methods for monitoring photons emitted by a heat source of an additive manufacturing device. Sensor data recorded while monitoring the photons can be used to predict metallurgical, mechanical and geometrical properties of a part produced during an additive manufacturing operation. In some embodiments, a test pattern can be used to calibrate an additive manufacturing device.

公开(公告)号：US12292384B2

公开(公告)日：2025-05-06

申请号：US18661222

申请日：2024-05-10

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： Vivek R. Dave ,  Mark J. Cola ,  R. Bruce Madigan ,  Alberto Castro ,  Glenn Wikle ,  Lars Jacquemetton ,  Peter Campbell

IPC: G01N21/71 ,  B33Y30/00 ,  B33Y50/00 ,  G01N21/00 ,  H01L21/66 ,  G01N21/84 ,  G06N20/00

Abstract: This disclosure describes various system and methods for monitoring photons emitted by a heat source of an additive manufacturing device. Sensor data recorded while monitoring the photons can be used to predict metallurgical, mechanical and geometrical properties of a part produced during an additive manufacturing operation. In some embodiments, a test pattern can be used to calibrate an additive manufacturing device.

公开(公告)号：US12151316B2

公开(公告)日：2024-11-26

申请号：US17895904

申请日：2022-08-25

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： Lars Jacquemetton ,  Vivek R. Dave ,  Mark J. Cola ,  Glenn Wikle ,  R. Bruce Madigan

IPC: B23K31/12 ,  B23K26/342 ,  B33Y10/00

Abstract: This disclosure describes an additive manufacturing method that includes monitoring a temperature of a portion of a build plane during an additive manufacturing operation using a temperature sensor as a heat source passes through the portion of the build plane; detecting a peak temperature associated with one or more passes of the heat source through the portion of the build plane; determining a threshold temperature by reducing the peak temperature by a predetermined amount; identifying a time interval during which the monitored temperature exceeds the threshold temperature; identifying, using the time interval, a change in manufacturing conditions likely to result in a manufacturing defect; and changing a process parameter of the heat source in response to the change in manufacturing conditions.

公开(公告)号：US20240207971A1

公开(公告)日：2024-06-27

申请号：US18601859

申请日：2024-03-11

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： R. Bruce Madigan ,  Lars Jacquemetton ,  Glenn Wikle ,  Mark J. Cola ,  Vivek R. Dave ,  Darren Beckett ,  Alberto M. Castro

IPC: B23K26/03 ,  B22F10/28 ,  B22F10/31 ,  B22F12/90 ,  B23K15/00 ,  B23K26/342 ,  B23K26/70 ,  B23K31/12 ,  B23K101/00 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y50/02

CPC classification number: B23K26/032 ,  B22F12/90 ,  B23K15/0086 ,  B23K26/342 ,  B23K26/70 ,  B23K31/125 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y50/02 ,  B22F10/28 ,  B22F10/31 ,  B22F2203/11 ,  B23K2101/001

Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensor; determining an area of the build plane traversed during the scans; determining a thermal energy density for the area of the build plane traversed by the scans based upon the amount of energy radiated and the area of the build plane traversed by the scans; mapping the thermal energy density to one or more location of the build plane; determining that the thermal energy density is characterized by a density outside a range of density values; and thereafter, adjusting subsequent scans of the energy source across or proximate the one or more locations of the build plane.

公开(公告)号：US12208465B2

公开(公告)日：2025-01-28

申请号：US17091644

申请日：2020-11-06

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： Darren Beckett ,  Martin S. Piltch ,  Scott Betts ,  Alberto M. Castro ,  Kevin Anderson ,  Lars Jacquemetton ,  Luis Aguilar

IPC: B23K26/03 ,  B23K26/082 ,  B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G02B5/30 ,  G02B27/28

Abstract: An additive manufacturing system comprises a build plane and an energy source configured to direct energy onto a work region of the build plane. An optical detector is configured to receive one or more optical signals from the work region. An optical filter is positioned between the work region and the optical detector, wherein the optical filter includes a first partially transmissive polarized filter having a first polarization axis and a second partially transmissive polarized filter having a second polarization axis. The first polarization axis is rotationally offset from the second polarization axis approximately 90 degrees. The optical filter improves the signal to noise ratio of the optical sensors.

公开(公告)号：US20250041976A1

公开(公告)日：2025-02-06

申请号：US18922224

申请日：2024-10-29

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： Lars Jacquemetton ,  Vivek R. Dave ,  Mark J. Cola ,  Glenn Wikle ,  R. Bruce Madigan

IPC: B23K31/12 ,  B23K26/342 ,  B33Y10/00

Abstract: This disclosure describes an additive manufacturing method that includes monitoring a temperature of a portion of a build plane during an additive manufacturing operation using a temperature sensor as a heat source passes through the portion of the build plane; detecting a peak temperature associated with one or more passes of the heat source through the portion of the build plane; determining a threshold temperature by reducing the peak temperature by a predetermined amount; identifying a time interval during which the monitored temperature exceeds the threshold temperature; identifying, using the time interval, a change in manufacturing conditions likely to result in a manufacturing defect; and changing a process parameter of the heat source in response to the change in manufacturing conditions.

公开(公告)号：US20240326158A1

公开(公告)日：2024-10-03

申请号：US18601845

申请日：2024-03-11

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： R. Bruce Madigan ,  Lars Jacquemetton ,  Glenn Wikle ,  Mark J. Cola ,  Vivek R. Dave ,  Darren Beckett ,  Alberto M. Castro

IPC: B23K26/03 ,  B22F10/28 ,  B22F10/31 ,  B22F12/90 ,  B23K15/00 ,  B23K26/342 ,  B23K26/70 ,  B23K31/12 ,  B23K101/00 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y50/02

CPC classification number: B23K26/032 ,  B22F12/90 ,  B23K15/0086 ,  B23K26/342 ,  B23K26/70 ,  B23K31/125 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y50/02 ,  B22F10/28 ,  B22F10/31 ,  B22F2203/11 ,  B23K2101/001

Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensor; determining an area of the build plane traversed during the scans; determining a thermal energy density for the area of the build plane traversed by the scans based upon the amount of energy radiated and the area of the build plane traversed by the scans; mapping the thermal energy density to one or more location of the build plane; determining that the thermal energy density is characterized by a density outside a range of density values; and thereafter, adjusting subsequent scans of the energy source across or proximate the one or more locations of the build plane.