公开(公告)号：US20170252812A1

公开(公告)日：2017-09-07

申请号：US15450562

申请日：2017-03-06

Applicant: Desktop Metal, Inc.

Inventor： Nicholas Mark Mykulowycz ,  Anastasios John Hart ,  Ricardo Fulop ,  Richard Remo Fontana ,  Jonah Samuel Myerberg ,  Joseph Yosup Shim ,  Michael Andrew Gibson ,  Jan Schroers ,  Christopher Allan Schuh ,  Matthew David Verminski ,  Yet-Ming Chiang ,  Emanuel Michael Sachs

IPC: B22F3/115 ,  B33Y50/02 ,  B33Y30/00 ,  B22F3/00 ,  B33Y10/00

CPC classification number: B22F3/115 ,  B22F1/0059 ,  B22F3/008 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2003/1059 ,  B22F2009/0892 ,  B22F2203/03 ,  B22F2202/01 ,  B22F3/003

Abstract: A printer fabricates an object from a build material based on a computerized model and a fused filament fabrication process. A nozzle for depositing the build material has an interior diameter approaching an outer diameter of build material fed to the nozzle in order to reduce extrusion and resistance forces imposed by the nozzle during deposition, while adequately constraining a planar position of the build material for accurate material deposition in a computer-controlled fabrication process.

公开(公告)号：US20170252813A1

公开(公告)日：2017-09-07

申请号：US15450594

申请日：2017-03-06

Applicant: Desktop Metal, Inc.

Inventor： Jonah Samuel Myerberg ,  Richard Remo Fontana ,  Jan Schroers ,  Ricardo Fulop ,  Anastasios John Hart ,  Nicholas Mark Mykulowycz ,  Joseph Yosup Shim ,  Michael Andrew Gibson ,  Christopher Allan Schuh ,  Matthew David Verminski ,  Yet-Ming Chiang ,  Emanuel Michael Sachs

IPC: B22F3/115 ,  B33Y50/02 ,  B33Y30/00 ,  B22F3/00 ,  B33Y10/00

CPC classification number: B22F3/115 ,  B22F1/0059 ,  B22F3/008 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2003/1059 ,  B22F2009/0892 ,  B22F2203/03 ,  B22F2202/01 ,  B22F3/003

Abstract: A printer fabricates an object from a computerized model using a fused filament fabrication process and a build material. One or more energy directors such as ridges are formed in an exposed surface of the deposited build material to provide regions of high, localized contact force that can improve interlayer bonding between successive layers of the build material. An ultrasonic vibrator can also usefully be incorporated into the printer to apply additional energy along these energy directors during deposition of a subsequent layer.

公开(公告)号：US20170252814A1

公开(公告)日：2017-09-07

申请号：US15450699

申请日：2017-03-06

Applicant: Desktop Metal, Inc.

Inventor： Jonah Samuel Myerberg ,  Yet-Ming Chiang ,  Christopher Allan Schuh ,  Anastasios John Hart ,  Ricardo Fulop ,  Richard Remo Fontana ,  Nicholas Mark Mykulowycz ,  Joseph Yosup Shim ,  Michael Andrew Gibson ,  Jan Schroers ,  Emanuel Michael Sachs

IPC: B22F3/115 ,  B33Y50/02 ,  B33Y30/00 ,  B22F3/00 ,  B33Y10/00

CPC classification number: B22F3/115 ,  B22F1/0059 ,  B22F3/008 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2003/1059 ,  B22F2009/0892 ,  B22F2203/03 ,  B22F2202/01 ,  B22F3/003

Abstract: A printer fabricates an object from a computerized model using a fused filament fabrication process and a metallic build material. A plasma depassivation wash is applied during deposition to remove oxidation and improve interlayer bonding between successive layers of the metallic build material. Other techniques such as ultrasonic vibration, formation of energy directors, joule heating, and the like, may be used in combination to form a mechanically robust bond between layers.

公开(公告)号：US11597153B1

公开(公告)日：2023-03-07

申请号：US16453691

申请日：2019-06-26

Applicant: Desktop Metal, Inc.

Inventor： Alexander C. Barbati ,  Michael Andrew Gibson ,  George Hudelson ,  Nicholas Mark Mykulowycz ,  Brian D. Kernan ,  Nihan Tuncer

IPC: B29C64/393 ,  B29C64/118 ,  B29C64/165 ,  B29C64/379 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y40/20

Abstract: Embodiments of the present disclosure are drawn to systems and methods for adjusting a three-dimensional (3D) model used in metal additive manufacturing to maintain dimensional accuracy and repeatability of a fabricated 3D part. These embodiments may be used to reduce or remove geometric distortions in the fabricated 3D part. One exemplary method may include: receiving, via one or more processors, a selection made by a user; receiving a 3D model of a desired part; retrieving at least one model constant based on the user's selection; receiving an input of at least one process variable setting from a set of process variable settings; generating transformation factors based on the at least one process variable parameter and the at least one model constant; transforming the 3D model of the desired part based on the transformation factors; and generating processing instructions for fabricating the transformed 3D model of the desired part.

公开(公告)号：US20170252815A1

公开(公告)日：2017-09-07

申请号：US15450751

申请日：2017-03-06

Applicant: Desktop Metal, Inc.

Inventor： Richard Remo Fontana ,  Joseph Yosup Shim ,  Michael Andrew Gibson ,  Ricardo Fulop ,  Anastasios John Hart ,  Nicholas Mark Mykulowycz ,  Jonah Samuel Myerberg ,  Jan Schroers ,  Christopher Allan Schuh ,  Yet-Ming Chiang ,  Emanuel Michael Sachs

IPC: B22F3/115 ,  B33Y50/02 ,  B33Y30/00 ,  B22F3/00 ,  B33Y10/00

CPC classification number: B22F3/115 ,  B22F1/0059 ,  B22F3/008 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2003/1059 ,  B22F2009/0892 ,  B22F2203/03 ,  B22F2202/01 ,  B22F3/003

Abstract: A printer fabricates an object from a computerized model using a fused filament fabrication process and a metallic build material. The Seebeck effect can be employed to monitor a temperature difference between a build material and a nozzle that is extruding the build material based on voltage. The temperature difference can, in turn, be used to control operation of the printer or to determine an absolute temperature based on direct measurement of a temperature of the nozzle.