公开(公告)号：US20240059909A1

公开(公告)日：2024-02-22

申请号：US18448433

申请日：2023-08-11

Applicant: 3D Systems, Inc.

Inventor： Meisam Shir MOHAMMADI

IPC: C09D5/18 ,  B33Y70/00 ,  C09D7/63 ,  C09D7/65 ,  C09D155/02 ,  C09D167/02 ,  C09D167/04 ,  C09D169/00 ,  C09D175/04 ,  C09D177/04 ,  C09K21/10 ,  C09K21/12 ,  C09K21/14

CPC classification number: C09D5/18 ,  B33Y70/00 ,  C09D7/63 ,  C09D7/65 ,  C09D155/02 ,  C09D167/02 ,  C09D167/04 ,  C09D169/00 ,  C09D175/04 ,  C09D177/04 ,  C09K21/10 ,  C09K21/12 ,  C09K21/14

Abstract: Compositions for additive manufacturing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed or formed from the compositions. The compositions may also impart desirable mechanical properties to the articles. In some embodiments, a composition comprises a sinterable powder or a thermoplastic polymer in an amount of 10-99 wt. %, based on the total weight of the composition, and an oxygen-deprivation additive in an amount of up to 25 wt. %, up to 15 wt. %, or up to 10 wt. % based on the total weight of the composition. The oxygen-deprivation additive comprises at least one of (a) an organophosphorus component, (b) a heptazine or melamine-derived component, and (c) a polymeric organobromine component.

公开(公告)号：US11878350B2

公开(公告)日：2024-01-23

申请号：US17487211

申请日：2021-09-28

Applicant: 3D Systems, Inc.

Inventor： Jose Julio Doval

IPC: B22F12/70 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B23K26/342 ,  B22F12/00 ,  B22F10/28 ,  B23K26/16 ,  B23K26/06 ,  B23K26/08

CPC classification number: B22F12/70 ,  B22F10/28 ,  B22F12/38 ,  B23K26/16 ,  B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B23K26/0604 ,  B23K26/083

Abstract: A three-dimensional (3D) print engine includes (A) a plurality of walls laterally defining a build chamber, (B) a build box including a build plate, (C) a powder dispenser, (D) a beam system for fusing layers of powder, (E) a peripheral plate disposed between the build plate and the plurality of walls and having an upper surface, (F) a gas inlet that ejects a gas flow stream that passes over the build plate and the peripheral plate, (G) a gas outlet that receives the gas flow stream, (H) a plurality of projecting structures mounted to and extending above the upper surface of the peripheral plate, and (I) a gas handling system coupled to the gas inlet and gas outlet. The plurality of projecting structures shape the flow field of the gas flow stream to provide a more uniform velocity of gas flow velocities above the build plane.

公开(公告)号：US20230415418A1

公开(公告)日：2023-12-28

申请号：US17848479

申请日：2022-06-24

Applicant: 3D Systems, Inc.

Inventor： Andrew Enslow ,  Darold Tejero Lazatin

IPC: B29C64/35 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/255 ,  B29C64/232

CPC classification number: B29C64/35 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/255 ,  B29C64/232

Abstract: A three-dimensional (3D) printing system includes a resin vessel, a fabrication subsystem, a waste collection subsystem, and a controller. The resin vessel is configured to contain photocurable resin. The fabrication subsystem is configured to form the 3D article with layer-by-layer selective curing of the photocurable resin. The fabrication subsystem includes a build plate, a build plate support structure, and a vertical movement mechanism. The waste collection subsystem is attached to the build plate support structure and configured to capture partially polymerized resin as the build plate support structure moves in an upward direction. The controller is configured to (a) operate the vertical movement mechanism to translate the build plate support structure to a lower position and (b) operate the vertical movement mechanism to raise the waste collection subsystem up through the resin and to a position at which partially polymerized resin can be unloaded from the waste collection subsystem.

公开(公告)号：US20230321917A1

公开(公告)日：2023-10-12

申请号：US18122524

申请日：2023-03-16

Applicant: 3D Systems, Inc.

Inventor： Alexander Gabriel Steinberg ,  Rex Thomas Alexandre

IPC: B29C64/393

CPC classification number: B29C64/393 ,  B33Y30/00

Abstract: Systems and processes for additive manufacturing are set forth for constructing an object by making successive discrete deposits of unitary masses of a feedstock materials at specific locations as determined by a digital data model for the object. In accordance with some embodiments, the deposits are non-continuous and performed in a sequence such that consecutively ordered deposit actions occur at deposit locations that are not physically adjacent, enabling control of thermal behaviors as a build progresses. In accordance with some embodiments, the sequencing of discrete depositing actions may be agilely rearranged to change temperatures and temperature gradients exhibited by deposited materials.

公开(公告)号：US11772328B2

公开(公告)日：2023-10-03

申请号：US17086049

申请日：2020-10-30

Applicant: 3D Systems, Inc.

Inventor： Evgeny Korol

IPC: B29C64/364 ,  B29C64/245 ,  B33Y30/00 ,  B29C64/124 ,  B29C64/264

CPC classification number: B29C64/364 ,  B29C64/124 ,  B29C64/245 ,  B29C64/264 ,  B33Y30/00

Abstract: A three-dimensional printing system includes a support plate, a transparent sheet, gas pressure source, and a conduit. The support plate includes a transparent central portion and defines a gas inlet and a gas outlet. The transparent sheet overlays the transparent central portion, the gas inlet, and the gas outlet of the support plate. A central chamber is defined between the transparent sheet and the support plate. The gas pressure source is coupled to the gas inlet through the conduit. An input fluid flow resistance Li is defined from the gas pressure source to the central chamber. An output fluid flow resistance Lo is defined out through the gas outlet and to an outside location. A ratio of Li to Lo is sufficient to allow a stable control of a physical configuration of the central unsupported portion of the transparent sheet above the support plate.

公开(公告)号：US11767440B2

公开(公告)日：2023-09-26

申请号：US17405642

申请日：2021-08-18

Applicant: 3D Systems, Inc.

Inventor： Jeffery H. Banning

IPC: B29C35/04 ,  C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C09D11/101 ,  C09D11/38 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/124 ,  B29C64/112 ,  C09D11/106 ,  C09D11/107 ,  B29C64/106 ,  B29K105/00

CPC classification number: C09D11/101 ,  B29C64/112 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/106 ,  C09D11/107 ,  C09D11/38 ,  B29C64/106 ,  B29K2105/0002

Abstract: In one aspect, inks for use with a three-dimensional (3D) printing system are described herein. In some embodiments, an ink described herein comprises 10-70 wt. % cyclopolymerizable monomer, based on the total weight of the ink. The cyclopolymerizable monomer comprises a first ethenyl or ethynyl moiety and a second ethenyl or ethynyl moiety. Additionally, the α-carbon of the first ethenyl or ethynyl moiety and the α-carbon of the second ethenyl or ethynyl moiety have a 1,5-, 1,6-, 1,7-, or 1,8-relationship.

公开(公告)号：US11738518B2

公开(公告)日：2023-08-29

申请号：US17945700

申请日：2022-09-15

Applicant: 3D Systems, Inc.

Inventor： Eric M. Innes

IPC: B33Y10/00 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/214 ,  B29C64/124 ,  B29C64/232 ,  B29C64/236

CPC classification number: B29C64/393 ,  B29C64/124 ,  B29C64/214 ,  B29C64/232 ,  B29C64/236 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three-dimensional (3D) printing system includes a vessel, a coating subsystem, a calibration block, and a controller. The vessel is configured to contain a photocurable resin having a resin upper surface. The coating subsystem includes a coater module including a coater blade, a lateral movement mechanism coupled to the coater module, a sensor mounted to the coater module, and a vertical actuator system. The calibration block has a calibration surface. The controller is configured to operate the lateral movement mechanism to position the coater blade over the calibration block, operate the vertical actuator system to lower the coater blade into engagement with the calibration surface of the calibration block, operate the sensor to measure a distance to the calibration block, and store the distance as indicative of a vertical position of a lower edge of the coater blade.

公开(公告)号：US11702559B2

公开(公告)日：2023-07-18

申请号：US17832129

申请日：2022-06-03

Applicant: 3D Systems, Inc.

Inventor： Khalil Moussa

IPC: C09D11/38 ,  C09D11/328 ,  C09D11/101 ,  C09D11/107 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/037 ,  B29C64/112 ,  B29K105/00 ,  B29K33/00

CPC classification number: C09D11/38 ,  B29C64/112 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/037 ,  C09D11/101 ,  C09D11/107 ,  C09D11/328 ,  B29K2033/12 ,  B29K2105/0032

Abstract: In one aspect, inks for use with a three-dimensional (3D) printing system are described herein. In some embodiments, an ink described herein comprises up to 80 wt. % oligomeric curable material; up to 80 wt. % monomeric curable material; up to 10 wt. % photoinitiator; up to 1 wt. % non-curable absorber material; and up to 10 wt. % one or more additional components, based on the total weight of the ink, and wherein the total amount of the foregoing components is equal to 100 wt. %. Additionally, the photoinitiator is operable to initiate curing of the oligomeric curable material and/or the monomeric curable material when the photoinitiator is exposed to incident curing radiation having a peak wavelength λ. Moreover, the ink has a penetration depth (Dp), a critical energy (Ec), and a print through depth (DPT) at the wavelength λ of less than or equal to 2×Dp.

公开(公告)号：US20230211432A1

公开(公告)日：2023-07-06

申请号：US18122510

申请日：2023-03-16

Applicant: 3D Systems, Inc.

Inventor： Alexander Gabriel Steinberg ,  Rex Thomas Alexandre

IPC: B23K9/04 ,  B23K9/095 ,  B33Y50/02 ,  B23K9/32 ,  B33Y10/00 ,  B23K9/12 ,  B33Y40/20

CPC classification number: B23K9/044 ,  B23K9/0953 ,  B33Y50/02 ,  B23K9/32 ,  B33Y10/00 ,  B23K9/124 ,  B33Y40/20

Abstract: In the context of additive manufacturing processes wherein an object is built by layered accumulations of discrete instantaneous deposits of feedstock material at specific locations according to a three-dimensional digital data model, systems and methods are taught for operating multiple independently-moving depositing devices in a shared build space to build the object. In some embodiments, depositing components perform discrete material depositing actions according to sequential lists of deposit location instructions which are dynamically sortable, enabling a control methodology to alleviate collision risks among depositing components and to improve thermal conditions of a workpiece during construction. Further embodiments provide for dynamic apportionment of discrete deposition actions among the available depositing devices for load balancing and fault tolerance.

公开(公告)号：US20230150205A1

公开(公告)日：2023-05-18

申请号：US18150401

申请日：2023-01-05

Applicant: 3D SYSTEMS, INC.

Inventor： Ben Wynne ,  Robert Mueller ,  Guthrie Cooper

IPC: B29C64/386 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y50/00 ,  B29C64/277 ,  B29C64/135

CPC classification number: B29C64/386 ,  B29C64/135 ,  B29C64/277 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02 ,  B29K2105/0058

Abstract: A three dimensional printing system includes a light engine having a spatial light modulator for curing individual layers of a photocure resin to form a three dimensional article of manufacture. The light engine is configured to: (1) receive a slice image that defines an array of energy values for curing a layer, (2) process the slice image to define an image frame compatible with the spatial light modulator, (3) receive an on signal, (4) activate the first light source in response to the on signal; (5) repeatedly send the first defined image frame to the first spatial light modulator during a defined cure time for the single layer of resin; (6) receive an off signal; (7) deactivate the first light source in response to the off signal; and (8) repeat steps (1) - (7) until the three dimensional article of manufacture is formed.