公开(公告)号：US20210154735A1

公开(公告)日：2021-05-27

申请号：US17166475

申请日：2021-02-03

Applicant: Desktop Metal, Inc.

Inventor： George Hudelson ,  Emanuel M. Sachs ,  Glenn A. Jordan ,  Midnight Zero

IPC: B22F1/00 ,  B22F3/18 ,  B22F3/16 ,  B33Y10/00 ,  B33Y30/00 ,  B22F3/24 ,  H05K3/10 ,  B29C64/236 ,  B29C64/194 ,  B29C64/343 ,  B22F3/00 ,  B29C64/214 ,  B29C64/218 ,  H05K3/12 ,  B29C64/329 ,  B22F12/00

Abstract: A system and corresponding method for additive manufacturing of a three-dimensional (3D) object to improve packing density of a powder bed used in the manufacturing process. The system and corresponding method enable higher density packing of the powder. Such higher density packing leads to better mechanical interlocking of particles, leading to lower sintering temperatures and reduced deformation of the 3D object during sintering. An embodiment of the system comprises means for adjusting a volume of a powder metered onto a top surface of the powder bed to produce an adjusted metered volume and means for spreading the adjusted metered volume to produce a smooth volume for forming a smooth layer of the powder with controlled packing density across the top surface of the powder bed. The controlled packing density enables uniform shrinkage, without warping, of the 3D object during sintering to produce higher quality 3D printed objects.

公开(公告)号：US10940533B2

公开(公告)日：2021-03-09

申请号：US16166968

申请日：2018-10-22

Applicant: Desktop Metal, Inc.

Inventor： George Hudelson ,  Emanuel M. Sachs ,  Glenn A. Jordan ,  Midnight Zero

IPC: B22F1/00 ,  B22F3/18 ,  B22F3/16 ,  B33Y10/00 ,  B33Y30/00 ,  B22F3/24 ,  H05K3/10 ,  B29C64/236 ,  B29C64/194 ,  B29C64/343 ,  B22F3/00 ,  B29C64/214 ,  B29C64/218 ,  H05K3/12 ,  B22F3/105 ,  B29C64/329 ,  B33Y40/00 ,  B33Y50/02 ,  B29C64/165

Abstract: A system and corresponding method for additive manufacturing of a three-dimensional (3D) object to improve packing density of a powder bed used in the manufacturing process. The system and corresponding method enable higher density packing of the powder. Such higher density packing leads to better mechanical interlocking of particles, leading to lower sintering temperatures and reduced deformation of the 3D object during sintering. An embodiment of the system comprises means for adjusting a volume of a powder metered onto a top surface of the powder bed to produce an adjusted metered volume and means for spreading the adjusted metered volume to produce a smooth volume for forming a smooth layer of the powder with controlled packing density across the top surface of the powder bed. The controlled packing density enables uniform shrinkage, without warping, of the 3D object during sintering to produce higher quality 3D printed objects.

公开(公告)号：US20190193150A1

公开(公告)日：2019-06-27

申请号：US16166968

申请日：2018-10-22

Applicant: Desktop Metal, Inc.

Inventor： George Hudelson ,  Emanuel M. Sachs ,  Glenn A. Jordan ,  Midnight Zero

IPC: B22F1/00 ,  B22F3/18 ,  B22F3/16 ,  B22F3/24

CPC classification number: B22F1/0059 ,  B22F3/004 ,  B22F3/008 ,  B22F3/1055 ,  B22F3/16 ,  B22F3/18 ,  B22F3/24 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2003/247 ,  B22F2998/10 ,  B22F2999/00 ,  B29C64/165 ,  B29C64/194 ,  B29C64/214 ,  B29C64/218 ,  B29C64/236 ,  B29C64/329 ,  B29C64/343 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  H05K3/102 ,  H05K3/1275 ,  H05K2203/0126 ,  H05K2203/0143 ,  H05K2203/1131 ,  B22F2201/20 ,  B22F2203/00 ,  B22F3/02 ,  B22F1/0088

Abstract: A system and corresponding method for additive manufacturing of a three-dimensional (3D) object to improve packing density of a powder bed used in the manufacturing process. The system and corresponding method enable higher density packing of the powder. Such higher density packing leads to better mechanical interlocking of particles, leading to lower sintering temperatures and reduced deformation of the 3D object during sintering. An embodiment of the system comprises means for adjusting a volume of a powder metered onto a top surface of the powder bed to produce an adjusted metered volume and means for spreading the adjusted metered volume to produce a smooth volume for forming a smooth layer of the powder with controlled packing density across the top surface of the powder bed. The controlled packing density enables uniform shrinkage, without warping, of the 3D object during sintering to produce higher quality 3D printed objects.

公开(公告)号：US11998982B2

公开(公告)日：2024-06-04

申请号：US17166475

申请日：2021-02-03

Applicant: Desktop Metal, Inc.

Inventor： George Hudelson ,  Emanuel M. Sachs ,  Glenn A. Jordan ,  Midnight Zero

IPC: B33Y30/00 ,  B22F1/10 ,  B22F3/00 ,  B22F3/16 ,  B22F3/18 ,  B22F3/24 ,  B22F10/00 ,  B22F10/14 ,  B22F10/37 ,  B22F12/52 ,  B22F12/57 ,  B22F12/63 ,  B29C64/194 ,  B29C64/214 ,  B29C64/218 ,  B29C64/236 ,  B29C64/329 ,  B29C64/343 ,  B33Y10/00 ,  B33Y40/00 ,  H05K3/10 ,  H05K3/12 ,  B22F10/28 ,  B22F12/00 ,  B29C64/165 ,  B33Y50/02

CPC classification number: B22F3/004 ,  B22F1/10 ,  B22F3/16 ,  B22F3/18 ,  B22F3/24 ,  B22F10/00 ,  B22F10/14 ,  B22F10/37 ,  B22F12/52 ,  B22F12/57 ,  B22F12/63 ,  B29C64/194 ,  B29C64/214 ,  B29C64/218 ,  B29C64/236 ,  B29C64/329 ,  B29C64/343 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  H05K3/102 ,  H05K3/1275 ,  B22F2003/247 ,  B22F10/28 ,  B22F12/224 ,  B22F2998/10 ,  B22F2999/00 ,  B29C64/165 ,  B33Y50/02 ,  H05K2203/0126 ,  H05K2203/0143 ,  H05K2203/1131 ,  B22F2999/00 ,  B22F3/004 ,  B22F2201/20 ,  B22F2998/10 ,  B22F10/10 ,  B22F3/004 ,  B22F2203/00 ,  B22F3/02 ,  B22F1/145 ,  B22F10/20 ,  B22F2999/00 ,  B22F10/10 ,  B22F10/00 ,  B22F3/004 ,  B22F2998/10 ,  B22F10/00 ,  B22F3/004 ,  B22F2203/00 ,  B22F3/02 ,  B22F1/145 ,  B22F10/10 ,  B22F2999/00 ,  B22F10/10 ,  B22F3/004 ,  B22F2203/00 ,  B22F2998/10 ,  B22F10/14 ,  B22F3/004 ,  B22F2203/00 ,  B22F3/02 ,  B22F1/145 ,  B22F10/28 ,  B22F2998/10 ,  B22F10/14 ,  B22F3/004 ,  B22F2203/00 ,  B22F3/02 ,  B22F1/145 ,  B22F10/14 ,  B22F2999/00 ,  B22F12/52 ,  B22F3/004 ,  B22F2203/00 ,  B22F2999/00 ,  B22F10/14 ,  B22F3/004 ,  B22F2999/00 ,  B22F12/52 ,  B22F10/14 ,  B22F3/004 ,  B22F2999/00 ,  B22F10/14 ,  B22F3/004 ,  B22F2203/00 ,  B22F2998/10 ,  B22F2203/00 ,  B22F3/004 ,  B22F1/145 ,  B22F3/02 ,  B22F10/20 ,  B22F10/10 ,  B22F2998/10 ,  B22F10/00 ,  B22F2203/00 ,  B22F3/004 ,  B22F1/145 ,  B22F3/02 ,  B22F10/10

Abstract: A system and corresponding method for additive manufacturing of a three-dimensional (3D) object to improve packing density of a powder bed used in the manufacturing process. The system and corresponding method enable higher density packing of the powder. Such higher density packing leads to better mechanical interlocking of particles, leading to lower sintering temperatures and reduced deformation of the 3D object during sintering. An embodiment of the system comprises means for adjusting a volume of a powder metered onto a top surface of the powder bed to produce an adjusted metered volume and means for spreading the adjusted metered volume to produce a smooth volume for forming a smooth layer of the powder with controlled packing density across the top surface of the powder bed. The controlled packing density enables uniform shrinkage, without warping, of the 3D object during sintering to produce higher quality 3D printed objects.

公开(公告)号：US11491720B2

公开(公告)日：2022-11-08

申请号：US16269713

申请日：2019-02-07

Applicant: Desktop Metal, Inc.

Inventor： Glenn A. Jordan

IPC: B29C64/35 ,  B29C64/255 ,  B29C64/393 ,  B29C64/165 ,  B29C64/153 ,  B33Y40/00 ,  B29C64/357 ,  B22F10/10 ,  B22F3/00

Abstract: A de-powdering basket comprises an enclosure of at least one side wall and a bottom wall. The enclosure is configured such that, when the enclosure is disposed within a build box, the outer surfaces of the at least one side wall are substantially adjacent to the interior walls of the build box. The enclosure further comprises one or more apertures disposed within the at least one side wall, each of the apertures comprising a void that extends through the at least one side wall from an interior surface of the side wall to an exterior surface of the side wall. The enclosure may be configured to accommodate a build plate situated within the enclosure. Outer edges of the build plate may cooperate with inner surfaces of the side walls of the enclosure to prevent loose powder from passing between the outer edges of the build plate and the side walls.