公开(公告)号：US20180236546A1

公开(公告)日：2018-08-23

申请号：US15961384

申请日：2018-04-24

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark

IPC: B22F3/00 ,  B22F1/00 ,  B33Y10/00 ,  B33Y70/00

Abstract: A method comprising supplying a first brown part and a second brown part, each of the first and second brown parts formed from a material in which more than 50 percent of powder particles of a second powdered metal have a diameter less than 10 microns, in a first mode, loading the first brown part into a fused tube, and ramping a temperature inside the fused tube at greater than 10 degrees C. per minute but less than 40 degrees C. per minute to a first sintering temperature from 500-700 degrees C., and in a second mode, loading the second brown part into the fused tube, and ramping the temperature inside the fused tube at greater than 10 degrees C. per minute but less than 40 degrees C. per minute to a second sintering tempering temperature from 1000-1200 degrees C.

公开(公告)号：US10040242B2

公开(公告)日：2018-08-07

申请号：US15892750

申请日：2018-02-09

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark

IPC: B29C64/40 ,  B29C64/141 ,  B29C64/295 ,  B29C64/245 ,  B29C31/04 ,  B22F3/11 ,  B33Y10/00 ,  B29C64/165 ,  B29K25/00 ,  B29C70/16 ,  B29C64/118 ,  B29C64/209 ,  B29K79/00

CPC classification number: B29C64/40 ,  B22F3/1118 ,  B22F2003/1058 ,  B29C31/044 ,  B29C64/118 ,  B29C64/141 ,  B29C64/165 ,  B29C64/209 ,  B29C64/245 ,  B29C64/295 ,  B29C70/16 ,  B29K2025/08 ,  B29K2079/085 ,  B33Y10/00

Abstract: A method comprising depositing, in layers, a shrinking platform formed from a composite including metal particles embedded in a first matrix, depositing shrinking supports of the composite upon the shrinking platform, forming a separation clearance dividing at least one shrinking support into fragments, depositing, from the composite, a part upon the shrinking platform and shrinking supports, depositing a separation material intervening between the part and the shrinking supports, the separation material including a ceramic powder and a second matrix, and forming, from the shrinking platform, shrinking supports, separation material, and part, a portable platform assembly in a green state, wherein the shrinking support is configured to prevent the portable platform assembly from distorting from gravitational force during sintering of the metal particles of the assembly in a brown state, and wherein the ceramic powder of the separation material is configured to separate the shrinking support from the part following sintering.

公开(公告)号：US20180154580A1

公开(公告)日：2018-06-07

申请号：US15829486

申请日：2017-12-01

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark

IPC: B29C64/40 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y40/00 ,  B29C64/165 ,  B22F3/00

CPC classification number: B29C64/165 ,  B22D11/01 ,  B22F1/0059 ,  B22F1/0085 ,  B22F3/008 ,  B22F3/1021 ,  B22F3/1055 ,  B22F3/1146 ,  B22F3/24 ,  B22F5/10 ,  B22F2003/1046 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2003/1058 ,  B22F2003/244 ,  B22F2005/103 ,  B22F2998/10 ,  B22F2999/00 ,  B29C64/00 ,  B29C64/118 ,  B29C64/153 ,  B29C64/209 ,  B29C64/40 ,  B29K2103/06 ,  B29K2505/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B22F3/10 ,  B22F3/003

Abstract: To build a part with a deposition-based additive manufacturing system using a polymer-based binder of a composite feedstock, a first tool path of a perimeter contour segment and a second tool path that is parallel and adjacent are deposited in retrograde directions to produce stress-offsetting adjacent paths, where directions of residual stress within the polymer-based binder of the composite are opposite in the stress-offsetting adjacent path.

公开(公告)号：US20180154437A1

公开(公告)日：2018-06-07

申请号：US15831995

申请日：2017-12-05

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark

IPC: B22F3/00 ,  B33Y10/00 ,  B22F1/00 ,  B33Y70/00

Abstract: In additive manufacturing, composite build material filament and release material filament (each a composite of metal/ceramic powder plus binder) are dropped from respective spools to a print head. On the spools and over the drop height, the filaments are heated to a temperature that flexes the filaments but does not soften them to a breaking point, e.g., heated but below a glass transition temperature of a softener (for example, wax) of the binder. The drop height is of similar linear scale to the build plate. The materials are debound and sintered.

公开(公告)号：US20180022032A1

公开(公告)日：2018-01-25

申请号：US15637199

申请日：2017-06-29

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark ,  David Steven Benhaim ,  Abraham Lawrence Parangi ,  Benjamin Tsu Sklaroff

IPC: G06F17/50 ,  G05B15/02 ,  B29C70/16 ,  B29K63/00 ,  B29K71/00 ,  B29K77/00 ,  B29K79/00 ,  B29K25/00

CPC classification number: B29C64/386 ,  B29C64/106 ,  B29C64/118 ,  B29C64/393 ,  B29C70/16 ,  B29K2025/08 ,  B29K2063/00 ,  B29K2071/00 ,  B29K2077/00 ,  B29K2079/085 ,  B33Y10/00 ,  B33Y50/02 ,  G05B15/02 ,  G06F17/50

Abstract: A three-dimensional geometry is received, and sliced into layers. A first anisotropic fill tool path for controlling a three dimensional printer to deposit a substantially anisotropic fill material is generated defining at least part of an interior of a first layer. A second anisotropic fill tool path for controlling a three dimensional printer to deposit the substantially anisotropic fill material defines at least part of an interior of a second layer. A generated isotropic fill material tool path defines at least part of a perimeter and at least part of an interior of a third layer intervening between the first and second layers.

公开(公告)号：US20170326802A1

公开(公告)日：2017-11-16

申请号：US15445227

申请日：2017-02-28

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark ,  Antoni S. Gozdz

IPC: B29C64/314 ,  B33Y50/02 ,  B33Y70/00 ,  B29C64/209 ,  B33Y30/00 ,  B29C64/118 ,  B29C64/321 ,  B29C64/295 ,  B29C64/393 ,  B29K77/00

CPC classification number: B29C64/314 ,  B29C64/118 ,  B29C64/209 ,  B29C64/295 ,  B29C64/321 ,  B29C64/393 ,  B29C70/20 ,  B29C2793/0081 ,  B29K2077/10 ,  B29K2995/0077 ,  B29L2009/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00

Abstract: Various embodiments related to three dimensional printers, and reinforced filaments, and their methods of use are described. In one embodiment, a void free reinforced filament is fed into an conduit nozzle. The reinforced filament includes a core, which may be continuous or semi-continuous, and a matrix material surrounding the core. The reinforced filament is heated to a temperature greater than a melting temperature of the matrix material and less than a melting temperature of the core prior to applying the filament from the conduit nozzle.

公开(公告)号：US20160361869A1

公开(公告)日：2016-12-15

申请号：US15145261

申请日：2016-05-03

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark ,  Antoni S. Gozdz

IPC: B29C67/00 ,  B33Y50/02 ,  B33Y10/00

CPC classification number: B29C64/106 ,  B29C64/386 ,  B29C64/40 ,  B29C70/16 ,  B29C70/20 ,  B29C2793/0027 ,  B29K2105/08 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: Various embodiments related to three dimensional printers, and reinforced filaments, and their methods of use are described. In one embodiment, a void free reinforced filament is fed into an conduit nozzle. The reinforced filament includes a core, which may be continuous or semi-continuous, and a matrix material surrounding the core. The reinforced filament is heated to a temperature greater than a melting temperature of the matrix material and less than a melting temperature of the core prior to applying the filament from the conduit nozzle.

公开(公告)号：US20160311165A1

公开(公告)日：2016-10-27

申请号：US15174645

申请日：2016-06-06

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark ,  Rick Bryan Woodruff ,  Abraham Lawrence Parangi ,  David Steven Benhaim ,  Benjamin Tsu Sklaroff

IPC: B29C67/00 ,  G05B19/19 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y50/02

CPC classification number: B33Y70/00 ,  B29C64/106 ,  B29C64/118 ,  B29C64/386 ,  B29C70/16 ,  B29K2025/08 ,  B29K2063/00 ,  B29K2071/00 ,  B29K2077/00 ,  B29K2079/085 ,  B29K2101/12 ,  B29K2105/08 ,  B33Y10/00 ,  B33Y50/02 ,  G05B19/4099 ,  G05B2219/35134 ,  G05B2219/49007 ,  G06F17/50 ,  Y02P90/265

Abstract: In a 3D composite printer, toolpaths defining fill material shells are received, as are toolpaths defining support material shells. A 3D toolpath defining a long fiber composite material curved shell is also received. A fill material deposition head traces the toolpaths to deposit some of the fill material shells or support material shells at least in part non-parallel to a printing substrate. A long fiber deposition head traces the 3D toolpath at least in part non-parallel to the printing substrate to deposit the long fiber composite material curved, concave, ring, tube, or winding shells to enclose, surround, or envelop at least a portion of the fill or support material shells.

Abstract translation: 在3D复合打印机中，接收定义填充材料外壳的刀具路径，以及定义支撑材料外壳的刀具路径。 还接收了一种定义长纤维复合材料弯曲壳体的3D工具路径。 填充材料沉积头跟踪刀具路径以沉积至少部分地不平行于印刷基底的一些填充材料壳或支撑材料壳。 长纤维沉积头将至少部分地不平行于印刷基底的3D工具路径跟踪，以沉积长纤维复合材料弯曲，凹形，环形，管状或卷绕壳以包围，包围或包封至少一部分 填充或支撑材料壳。

公开(公告)号：US20160200047A1

公开(公告)日：2016-07-14

申请号：US14881938

申请日：2015-10-13

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark ,  Antoni S. Gozdz

IPC: B29C67/00

CPC classification number: B29C67/0081 ,  B29C64/106 ,  B29C64/20 ,  B29C69/001 ,  B29C70/20 ,  B29K2101/12 ,  B29K2105/08 ,  B29K2105/10 ,  B29K2105/253 ,  B29K2307/04 ,  B33Y10/00 ,  B33Y70/00

Abstract: Various embodiments related to three dimensional printers, and reinforced filaments, and their methods of use are described. In one embodiment, a void free reinforced filament is fed into an conduit nozzle. The reinforced filament includes a core, which may be continuous or semi-continuous, and a matrix material surrounding the core. The reinforced filament is heated to a temperature greater than a melting temperature of the matrix material and less than a melting temperature of the core prior to drag the filament from the conduit nozzle.

公开(公告)号：US20160129643A1

公开(公告)日：2016-05-12

申请号：US14876073

申请日：2015-10-06

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark ,  Antoni S. Gozdz

IPC: B29C67/00

CPC classification number: B29C64/106 ,  B29C64/393 ,  B29C70/20 ,  B29K2077/10 ,  B29K2307/04

Abstract: Various embodiments related to three dimensional printers, and reinforced filaments, and their methods of use are described. In one embodiment, a void free reinforced filament is fed into an conduit nozzle. The reinforced filament includes a core, which may be continuous or semi-continuous, and a matrix material surrounding the core. The reinforced filament is heated to a temperature greater than a melting temperature of the matrix material and less than a melting temperature of the core prior to drag the filament from the conduit nozzle.

Abstract translation: 描述了与三维打印机和增强长丝相关的各种实施例及其使用方法。 在一个实施例中，将无空隙的增强细丝送入导管喷嘴。 增强长丝包括可以是连续或半连续的芯和围绕芯的基体材料。 在将细丝从导管喷嘴拖下来之前，将增强的长丝加热到大于基体材料的熔融温度的温度并小于芯的熔化温度。