-
1.发明公开公开(公告)号：US20240181531A1
公开(公告)日：2024-06-06
申请号：US18493348
申请日：2023-10-24
Applicant: Desktop Metal, Inc.
Inventor： Jamison Go , Robert Michael Shydo, JR. , Emanuel M. Sachs , Michael Santorella , Midnight Zero , Jonah Samuel Myerberg , Joseph Gabay , Jeffrey von Loesecke , Alexander K. McCalmont
Abstract: Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from parts through vibration of the powder, the parts, and/or structures mechanically connected to the powder and/or parts. For instance, the application of vibration may dislodge, aerate and/or otherwise increase the flowability of regions of the powder, thereby making it easier to remove the powder with a suitable means. Techniques for depowdering through vibration may be automated, thereby mitigating challenges associated with manual depowdering operations.
-
公开(公告)号：US20210053121A1
公开(公告)日：2021-02-25
申请号：US16989149
申请日：2020-08-10
Applicant: Desktop Metal, Inc.
Inventor： Jamison Go , Robert Michael Shydo , Emanuel M. Sachs , Michael Santorella , Midnight Zero , Jonah Samuel Myerberg , Joseph Gabay , Jeffrey von Loesecke , Alexander K. McCalmont
Abstract: Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from parts through vibration of the powder, the parts, and/or structures mechanically connected to the powder and/or parts. For instance, the application of vibration may dislodge, aerate and/or otherwise increase the flowability of regions of the powder, thereby making it easier to remove the powder with a suitable means. Techniques for depowdering through vibration may be automated, thereby mitigating challenges associated with manual depowdering operations.
-
公开(公告)号：US20210237159A1
公开(公告)日：2021-08-05
申请号：US17117200
申请日：2020-12-10
Applicant: Desktop Metal, Inc.
Inventor： Jamison Go , Michael Santorella , Jonah Samuel Myerberg , Matthew McCambridge , Alexander LeGendre , Robert J. Nick , Michael Goldblatt , Robert Michael Shydo, JR. , Midnight Zero , Emanuel M. Sachs , Jeffrey von Loesecke , Alexander K. McCalmont , George Hudelson , Joe Pantano
Abstract: Techniques for depowdering additively fabricated parts are described. The techniques utilize various mechanisms to separate powder from parts. For instance, techniques for depowdering described herein may include fabrication of auxiliary structures in addition to fabrication of parts. Certain auxiliary structures may aid with depowdering operations, and may be fabricated along with parts during an additive fabrication process. The auxiliary structures may be shaped and/or have positional and/or geometrical relationships to the parts during fabrication. For instance, an auxiliary structure may include a cage structure fabricated around one or more parts.
-
公开(公告)号：US20180304302A1
公开(公告)日：2018-10-25
申请号：US15956467
申请日：2018-04-18
Applicant: Desktop Metal, Inc.
Inventor： Emanuel M. Sachs , Midnight Zero
CPC classification number: B05C19/04 , B22F3/004 , B22F3/008 , B22F3/1055 , B22F2003/1056 , B22F2998/10 , B28B1/001 , B29C41/006 , B29C41/12 , B29C41/36 , B29C64/165 , B29C64/205 , B29C64/343 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/02 , B33Y70/00
Abstract: A metering apparatus and corresponding method meter a powder material in a three-dimensional (3D) printing system. The metering apparatus comprises a hopper with walls configured to contain a powder material, a metering roller, and a tool. The metering roller is located beneath an opening of the hopper. The metering roller and a given wall of the walls of the hopper are spaced apart by a gap therebetween at the opening; the gap in combination with rotation of the metering roller causes the powder material to flow from under the given wall of the hopper at a substantially predictable rate. The tool is positioned at the given wall where the flow emerges and is configured to force the powder material off of the metering roller to supply the 3D printing system with the powder material for printing a 3D object.
-
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.
-
Patent Agency Ranking
6.发明公开公开(公告)号：US20230150029A1
公开(公告)日：2023-05-18
申请号：US17976282
申请日：2022-10-28
Applicant: Desktop Metal, Inc.
Inventor： Emanuel M. Sachs , Midnight Zero
Abstract: Techniques for depowdering additively fabricated parts are described in which powder is separated from parts by creating a large pressure differential between the powder and parts and a nearby location. The pressure differential may cause gas to quickly flow into and/or around the powder and parts, thereby producing a force against the powder and parts. Since the powder is generally much lighter than the parts, this force may be much more effective at moving the powder than moving the parts. As a result, the powder and parts may be separated from one another. The pressure differential may be created in various ways, such as by holding the parts and part in a chamber that is pressurized with air and/or other gas(es). Rapid depressurization of the chamber may produce the aforementioned pressure differential, leading to powder movement away from the parts.
-
公开(公告)号：US11511350B2
公开(公告)日：2022-11-29
申请号：US17274336
申请日：2019-09-13
Applicant: Desktop Metal, Inc.
Inventor： Emanuel M. Sachs , Midnight Zero
Abstract: Techniques for depowdering additively fabricated parts are described in which powder is separated from parts by creating a large pressure differential between the powder and parts and a nearby location. The pressure differential may cause gas to quickly flow into and/or around the powder and parts, thereby producing a force against the powder and parts. Since the powder is generally much lighter than the parts, this force may be much more effective at moving the powder than moving the parts. As a result, the powder and parts may be separated from one another. The pressure differential may be created in various ways, such as by holding the parts and part in a chamber that is pressurized with air and/or other gas(es). Rapid depressurization of the chamber may produce the aforementioned pressure differential, leading to powder movement away from the parts.
-
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
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.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.016 seconds)
