公开(公告)号：US20220234104A1

公开(公告)日：2022-07-28

申请号：US17521477

申请日：2021-11-08

Applicant: Desktop Metal, Inc.

Inventor： Michael A. Gibson ,  Richard Remo Fontana ,  George Hudelson ,  Christopher Benjamin Renner ,  Paul A. Hoisington ,  Anna Marie Trump

IPC: B22F10/14 ,  B33Y10/00 ,  B33Y30/00 ,  B22F10/64 ,  B22F10/68 ,  B33Y40/20

Abstract: A method of metal additive manufacturing, including forming a three-dimensional object as a successive series of layers. At least some of the successive layers is formed by depositing a layer of build material powder on a work surface, depositing a predetermined pattern of fugitive fluid and depositing a predetermined pattern of binder fluid, wherein the predetermined pattern of fugitive fluid improves at least one characteristic of the three-dimensional part.

公开(公告)号：US20200061706A1

公开(公告)日：2020-02-27

申请号：US16561689

申请日：2019-09-05

Applicant: Desktop Metal, Inc.

Inventor： Michael A. Gibson ,  Alexander C. Barbati

IPC: B22F3/10 ,  B33Y40/00 ,  B29C64/165 ,  B29C64/35 ,  B33Y50/00 ,  B33Y80/00 ,  B29C64/386 ,  B22F3/105

Abstract: 3D-printed parts may include binding agents to be removed following an additive manufacturing process. A debinding process removes the binding agents by immersing the part in a solvent bath causing chemical dissolution of the binding agents. The time of exposure of the 3D-printed part to the solvent is determined based on the geometry of the part, wherein the geometry is applied to predict the diffusion of the solvent through the 3D-printed part. The 3D-printed part is then immersed in the solvent bath to remove the binding agent, and is removed from the solvent bath after the time of exposure.

公开(公告)号：US20180304540A1

公开(公告)日：2018-10-25

申请号：US15959966

申请日：2018-04-23

Applicant: Desktop Metal, Inc.

Inventor： Jay Tobia ,  Nihan Tuncer ,  Aaron Preston ,  Ricardo Fulop ,  Michael A. Gibson ,  Richard Remo Fontana ,  Anastasios John Hart

IPC: B29C64/393 ,  B29C64/35 ,  G06F17/50 ,  B29C64/188 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B22F3/008 ,  B22F3/1021 ,  B22F3/1055 ,  B22F2003/1057 ,  B22F2203/03 ,  B22F2301/00 ,  B29C64/188 ,  B29C64/35 ,  B33Y10/00 ,  B33Y50/02 ,  G06F17/5009

Abstract: Complexity of a geometry of a desired (i.e., target) three-dimensional (3D) object being produced by an additive manufacturing system, as well as atypical behavior of the processes employed by such a system, pose challenges for producing a final version of the desired 3D object with fidelity relative to the desired object. An example embodiment enables such challenges to be overcome as a function of feedback to enable the final version to be produced with fidelity. The feedback may be at least one value that is associated with at least one characteristic of a printed object following processing of the printed object. Such feedback may be obtained as part of a calibration process of the 3D printing system or as part of an operational process of the 3D printing system.

公开(公告)号：US20240083116A1

公开(公告)日：2024-03-14

申请号：US18209067

申请日：2023-06-13

Applicant: Desktop Metal, Inc.

Inventor： Ricardo Chin ,  Michael A. Gibson ,  Blake Z. Reeves ,  Shashank Holenarasipura Raghu

IPC: B29C64/386 ,  B22F1/10 ,  B22F3/24 ,  B22F10/00 ,  B22F10/28 ,  G05B19/4099 ,  G06F30/17

CPC classification number: B29C64/386 ,  B22F1/10 ,  B22F3/24 ,  B22F10/00 ,  B22F10/28 ,  G05B19/4099 ,  G06F30/17 ,  B33Y50/02

Abstract: Methods provide for fabricating objects through additive manufacturing in a manner that compensates for deformations introduced during post-print processing, such as sintering. An initial model may be divided into a plurality of segments, the initial model defining geometry of an object. For each of the segments, modified geometry may be calculated, where the modified geometry compensates for a predicted deformation. Print parameters can then be updated to incorporate the modified geometry, where the print parameters define geometry of the printed object (e.g., configuration settings of the printer, a tool path, an object model). The object may then be printed based on the updated print parameters.

公开(公告)号：US20200009654A1

公开(公告)日：2020-01-09

申请号：US16509070

申请日：2019-07-11

Applicant: Desktop Metal, Inc.

Inventor： Tomek Brzezinski ,  Michael A. Gibson ,  Michael Kelly

IPC: B22F3/10 ,  B22F3/105 ,  B22F1/00 ,  B22F3/24

Abstract: A 3D printer includes a build plate providing a surface on which an object is printed. Prior to printing, a sheet is fixed to the surface of the build plate. The sheet is composed of a material that adheres to a binder component of the feedstock used to print the object. During printing, the first layer of the printed object forms a bond with the sheet, which secures the location of the first layer and resists movement of the object during printing. Following printing and the object gaining sufficient rigidity, the object and sheet can be removed together from the printer. The sheet may then be peeled from the object, and the object can undergo debinding and/or sintering to create a finished object.

公开(公告)号：US20200001363A1

公开(公告)日：2020-01-02

申请号：US16561568

申请日：2019-09-05

Applicant: Desktop Metal, Inc.

Inventor： Michael A. Gibson ,  Alexander C. Barbati

IPC: B22F3/10 ,  B33Y40/00 ,  B29C64/165 ,  B29C64/35 ,  B33Y50/00 ,  B33Y80/00 ,  B29C64/386

Abstract: 3D-printed parts may include binding agents to be removed following an additive manufacturing process. A debinding process removes the binding agents by immersing the part in a solvent bath causing chemical dissolution of the binding agents. The time of exposure of the 3D-printed part to the solvent is determined based on the geometry of the part, wherein the geometry is applied to predict the diffusion of the solvent through the 3D-printed part. The 3D-printed part is then immersed in the solvent bath to remove the binding agent, and is removed from the solvent bath after the time of exposure.

公开(公告)号：US20220250149A1

公开(公告)日：2022-08-11

申请号：US17292816

申请日：2019-11-08

Applicant: Desktop Metal, Inc.

Inventor： Michael A. Gibson ,  Alexander C. Barbati ,  George Hudelson ,  Robert J. Nick ,  Paul A. Hoisington ,  Brian D. Kernan

IPC: B22F10/14 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/10 ,  B22F10/60 ,  B22F3/26 ,  B22F1/16

Abstract: Embodiments described herein relate to methods and systems for controlling the packing behavior of powders for additive manufacturing applications. In some embodiments, a method for additive manufacturing includes adding a packing modifier to a base powder to form a build material. The build material may be spread to form a layer across a powder bed, and the build material may be selectively joined along a two-dimensional pattern associated with the layer. The steps of spreading a layer of build material and selectively joining the build material in the layer may be repeated to form a three-dimensional object. The packing modifier may be selected to enhance one or more powder packing and/or powder flow characteristics of the base powder to provide for improved uniformity of the additive manufacturing process, promote sintering, and/or to enhance the properties of the manufactured three-dimensional objects.

公开(公告)号：US10996652B2

公开(公告)日：2021-05-04

申请号：US15959063

申请日：2018-04-20

Applicant: Desktop Metal, Inc.

Inventor： Ricardo Chin ,  Michael A. Gibson ,  Blake Z. Reeves ,  Shashank Holenarasipura Raghu

IPC: G05B19/4099 ,  B22F1/00 ,  B22F3/24 ,  B22F3/105 ,  B29C64/386 ,  B22F3/00 ,  G06F30/17 ,  B33Y50/02 ,  G06T17/20 ,  B33Y10/00 ,  B33Y50/00

Abstract: Methods provide for fabricating objects through additive manufacturing in a manner that compensates for deformations introduced during post-print processing, such as sintering. An initial model may be divided into a plurality of segments, the initial model defining geometry of an object. For each of the segments, modified geometry may be calculated, where the modified geometry compensates for a predicted deformation. Print parameters can then be updated to incorporate the modified geometry, where the print parameters define geometry of the printed object (e.g., configuration settings of the printer, a tool path, an object model). The object may then be printed based on the updated print parameters.

公开(公告)号：US20200061705A1

公开(公告)日：2020-02-27

申请号：US16561628

申请日：2019-09-05

Applicant: Desktop Metal, Inc.

Inventor： Michael A. Gibson ,  Alexander C. Barbati

IPC: B22F3/10 ,  B33Y40/00 ,  B29C64/165 ,  B29C64/35 ,  B33Y50/00 ,  B33Y80/00 ,  B29C64/386 ,  B22F3/105

Abstract: 3D-printed parts may include binding agents to be removed following an additive manufacturing process. A debinding process removes the binding agents by immersing the part in a solvent bath causing chemical dissolution of the binding agents. The time of exposure of the 3D-printed part to the solvent is determined based on the geometry of the part, wherein the geometry is applied to predict the diffusion of the solvent through the 3D-printed part. The 3D-printed part is then immersed in the solvent bath to remove the binding agent, and is removed from the solvent bath after the time of exposure.

公开(公告)号：US20190329501A1

公开(公告)日：2019-10-31

申请号：US16508825

申请日：2019-07-11

Applicant: Desktop Metal, Inc.

Inventor： Jay Tobia ,  Nihan Tuncer ,  Aaron Preston ,  Ricardo Fulop ,  Michael A. Gibson ,  Richard Remo Fontana ,  Anastasios John Hart

IPC: B29C64/393 ,  G06F17/50 ,  B33Y50/02 ,  B29C64/188 ,  B22F3/10 ,  B22F3/00 ,  B22F3/105 ,  B29C64/35

Abstract: Complexity of a geometry of a desired (i.e., target) three-dimensional (3D) object being produced by an additive manufacturing system, as well as atypical behavior of the processes employed by such a system, pose challenges for producing a final version of the desired 3D object with fidelity relative to the desired object. An example embodiment enables such challenges to be overcome as a function of feedback to enable the final version to be produced with fidelity. The feedback may be at least one value that is associated with at least one characteristic of a printed object following processing of the printed object. Such feedback may be obtained as part of a calibration process of the 3D printing system or as part of an operational process of the 3D printing system.