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：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：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.