公开(公告)号：US20210114308A1

公开(公告)日：2021-04-22

申请号：US17135120

申请日：2020-12-28

Applicant: Desktop Metal, Inc.

Inventor： George Hudelson ,  Alexander Nicholas LeGendre ,  Kelvin Wiebe

IPC: B29C64/40 ,  B22F10/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/165 ,  B28B1/00 ,  B28B11/24 ,  B28B17/00

Abstract: An additive manufacturing system, and corresponding method, prints a sacrificial component using a 3D printing system that includes a spreading mechanism for spreading unbound powder to form layers of a powder bed and a printing mechanism for jetting binder fluid into the unbound powder to form the sacrificial component. The system forms the sacrificial component with a feature that provides a resistive force to a shear force imposed by the spreading mechanism during the spreading. The system prints a part with the 3D printing system in a coupled arrangement with the sacrificial component. The coupled arrangement in combination with the resistive force is sufficient to immobilize each printed layer of the part to resist the shear force imposed by the spreading mechanism during spreading of the unbound powder above each printed layer of the part. After printing, and before or after post-processing, the part and sacrificial component are separated.

公开(公告)号：US10906249B2

公开(公告)日：2021-02-02

申请号：US15971541

申请日：2018-05-04

Applicant: Desktop Metal, Inc.

Inventor： George Hudelson ,  Alexander Nicholas LeGendre ,  Kelvin Wiebe

IPC: B29C64/40 ,  B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/165 ,  B22F3/00 ,  B28B1/00 ,  B28B11/24 ,  B28B17/00

Abstract: An additive manufacturing system, and corresponding method, prints a sacrificial component using a 3D printing system that includes a spreading mechanism for spreading unbound powder to form layers of a powder bed and a printing mechanism for jetting binder fluid into the unbound powder to form the sacrificial component. The system forms the sacrificial component with a feature that provides a resistive force to a shear force imposed by the spreading mechanism during the spreading. The system prints a part with the 3D printing system in a coupled arrangement with the sacrificial component. The coupled arrangement in combination with the resistive force is sufficient to immobilize each printed layer of the part to resist the shear force imposed by the spreading mechanism during spreading of the unbound powder above each printed layer of the part. After printing, and before or after post-processing, the part and sacrificial component are separated.

公开(公告)号：US10759111B2

公开(公告)日：2020-09-01

申请号：US15921903

申请日：2018-03-15

Applicant: Desktop Metal, Inc.

Inventor： Ricardo Fulop ,  Alexander Nicholas LeGendre ,  Jonah Samuel Myerberg ,  Charles Edward Martin ,  Justin Cumming ,  Robert Michael Shydo, Jr. ,  George Hudelson ,  Jamison Go ,  Andrew E. Kuklinski ,  Michael Daniel Santorella

IPC: B29C64/165 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/393 ,  B33Y40/00 ,  B29C64/259 ,  B29C64/255 ,  B29C64/176 ,  B29C64/25

Abstract: A build box associated with a powder bed fabrication system may comprise a housing defining a housing cavity, and a powder print bed disposed within the housing cavity. The powder print bed may be characterized by state information. The build box may further comprise a medium configured to facilitate access to the state information, and a coupling interface for removably engaging the build box with at least one subsystem of the powder bed fabrication system. The state information may comprise one or more state information elements of object identification, object location, current processing state, next subsystem processing step, previous subsystem processing step, object model information, object material composition, and current powder print bed temperature profile. The medium may comprise a memory device coupled with a transceiver. The medium may alternatively comprise an RFID device, or an optically perceivable designator, such as a bar code or QR code.

公开(公告)号：US20190210294A1

公开(公告)日：2019-07-11

申请号：US15971541

申请日：2018-05-04

Applicant: Desktop Metal, Inc.

Inventor： George Hudelson ,  Alexander Nicholas LeGendre ,  Kelvin Wiebe

IPC: B29C64/40 ,  B33Y10/00 ,  B33Y30/00 ,  B22F3/00 ,  B29C64/165 ,  B29C64/393 ,  B28B1/00 ,  B28B11/24 ,  B28B17/00 ,  B33Y50/02

CPC classification number: B29C64/40 ,  B22F3/008 ,  B28B1/001 ,  B28B11/243 ,  B28B17/0081 ,  B29C64/165 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: An additive manufacturing system, and corresponding method, prints a sacrificial component using a 3D printing system that includes a spreading mechanism for spreading unbound powder to form layers of a powder bed and a printing mechanism for jetting binder fluid into the unbound powder to form the sacrificial component. The system forms the sacrificial component with a feature that provides a resistive force to a shear force imposed by the spreading mechanism during the spreading. The system prints a part with the 3D printing system in a coupled arrangement with the sacrificial component. The coupled arrangement in combination with the resistive force is sufficient to immobilize each printed layer of the part to resist the shear force imposed by the spreading mechanism during spreading of the unbound powder above each printed layer of the part. After printing, and before or after post-processing, the part and sacrificial component are separated.

公开(公告)号：US20180297278A1

公开(公告)日：2018-10-18

申请号：US15921903

申请日：2018-03-15

Applicant: Desktop Metal, Inc.

Inventor： Ricardo Fulop ,  Jonah Samuel Myerberg ,  Charles Edward Martin ,  Justin Cumming ,  Robert Michael Shydo, JR. ,  George Hudelson ,  Jamison Go ,  Andrew E. Kuklinski ,  Michael Daniel Santorella ,  Alexander Nicholas LeGendre

IPC: B29C64/165 ,  B29C64/25 ,  B29C64/393

CPC classification number: B29C64/165 ,  B29C64/176 ,  B29C64/25 ,  B29C64/255 ,  B29C64/259 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: A build box associated with a powder bed fabrication system may comprise a housing defining a housing cavity, and a powder print bed disposed within the housing cavity. The powder print bed may be characterized by state information. The build box may further comprise a medium configured to facilitate access to the state information, and a coupling interface for removably engaging the build box with at least one subsystem of the powder bed fabrication system. The state information may comprise one or more state information elements of object identification, object location, current processing state, next subsystem processing step, previous subsystem processing step, object model information, object material composition, and current powder print bed temperature profile. The medium may comprise a memory device coupled with a transceiver. The medium may alternatively comprise an RFID device, or an optically perceivable designator, such as a bar code or QR code.