公开(公告)号：USRE50427E1

公开(公告)日：2025-05-13

申请号：US18621286

申请日：2024-03-29

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark ,  Rick Bryan Woodruff ,  Keith Durand ,  Benjamin Hodsdon Gallup ,  Michelle Ling Chao

IPC: F27B17/00 ,  B22F3/10 ,  B29C64/295 ,  B33Y30/00 ,  B33Y40/00 ,  C04B35/64 ,  B22F10/12 ,  B22F10/14 ,  B22F10/18 ,  B22F10/43 ,  B22F10/73 ,  B22F10/80 ,  B22F12/55 ,  B29C64/165

Abstract: According to one aspect, embodiments herein provide a furnace for debinding and sintering additively manufactured parts comprising a unitarily formed retort having at least one open side, a heater for heating a sintering volume within the retort to a debinding temperature and to a sintering temperature, an end cap sealing the at least one open side, a forming gas line penetrating the end cap for supplying forming gas at a flowrate, and a heat exchanger within the retort, outside the sintering volume, and adjacent a heated wall of the retort, the heat exchanger having an inlet connected to the forming gas line and an outlet to the sintering volume, wherein the heat exchanger includes a heat exchange tube length sufficient to heat the forming gas to within 20 degrees Celsius of the sintering temperature before the forming gas exits the outlet.

公开(公告)号：US10603841B2

公开(公告)日：2020-03-31

申请号：US15633182

申请日：2017-06-26

Applicant: MARKFORGED, INC.

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

IPC: B29C64/209 ,  B29C64/227 ,  B29C70/16 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y30/00 ,  B29C64/386 ,  B29C64/106 ,  B29L9/00 ,  B29K63/00 ,  B29K71/00 ,  B29K77/00 ,  B29K79/00 ,  B29K25/00

Abstract: According to at least one aspect, embodiments of the invention provide a 3D printer comprising an anisotropic head that solidifies, along anisotropic toolpaths, fiber swaths having an anisotropic characteristic oriented relative to a trajectory of the anisotropic tool paths, an isotropic head that solidifies, along isotropic toolpaths, a substantially isotropic material, a motorized drive for moving the anisotropic head and a build plate supporting a printed part in at least three degrees of freedom, and a controller configured to control the 3D printer to build the printed part by solidifying the isotropic material along the isotropic tool paths, solidifying the anisotropic material in fiber swaths tracking a non-concentric set of anisotropic tool paths for at least a first sequence of parallel shells, solidifying the anisotropic material in fiber swaths tracking an outer concentric set of anisotropic tool paths for at least a second sequence of parallel shells.

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：US20210154738A1

公开(公告)日：2021-05-27

申请号：US17101410

申请日：2020-11-23

Applicant: MARKFORGED, INC.

Inventor： Michelle Ling Chao ,  Rick Bryan Woodruff ,  Christopher Hoffman

IPC: B22F3/10 ,  B22F1/00 ,  B33Y70/00

Abstract: A method and system of additively manufacturing parts using a getter device is disclosed. Specifically, provided herein are methods and systems of using a getter device in a sintering atmosphere furnace for consistently and repeatedly sintering additively manufactured machined quality parts, such as, for example, titanium parts.

公开(公告)号：US10800108B2

公开(公告)日：2020-10-13

申请号：US16419776

申请日：2019-05-22

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark ,  Rick Bryan Woodruff ,  Michelle Ling Chao

IPC: B29C64/40 ,  B29C64/165 ,  B33Y10/00 ,  B22F3/11 ,  B29C64/245 ,  B29C64/295 ,  B29C31/04 ,  B29C64/141 ,  B29C64/118 ,  B29K79/00 ,  B29K25/00 ,  B29C64/209 ,  B29C70/16 ,  B22F3/105

Abstract: According to one aspect, embodiments of the invention provide a method of 3D printing, comprising depositing a model material in successive layers to form a part, the model material being a metal composite including greater than 50% by volume metal powder and less than 50% by volume a first removable binder, depositing the model material in successive layers to form a support structure adjacent the part, depositing a sinterable separation material between a surface of the part and a surface of the support structure, the sinterable separation material formed from 10-40% by volume ceramic powder and greater than 50% by volume a second removable binder, debinding the first removable binder of the model material and the second removable binder of the sinterable separation material, and sintering the part, the support structure, and the sinterable separation material at a temperature profile that sinters the model material and the sinterable separation material.

公开(公告)号：US20170297275A1

公开(公告)日：2017-10-19

申请号：US15633824

申请日：2017-06-27

Applicant: MARKFORGED, INC.

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

IPC: B29C70/16 ,  B33Y10/00 ,  B29K77/00 ,  B29K71/00 ,  B29K63/00 ,  B33Y50/02 ,  B33Y30/00 ,  B29K79/00 ,  B29L9/00 ,  B29K25/00

CPC classification number: B29C64/386 ,  B29C64/106 ,  B29C64/209 ,  B29C64/227 ,  B29C70/16 ,  B29K2025/08 ,  B29K2063/00 ,  B29K2071/00 ,  B29K2077/00 ,  B29K2079/085 ,  B29L2009/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: According to aspects, provided is a method for displaying a three-dimensional geometry of a part to be 3D printed, comprising receiving the geometry of a part sliced into shells or layers, displaying the shells or layers, displaying, for a shell or layer, a representation of a distribution of a isotropic fill material, displaying, for an anisotropic fill subset of the set of shells or layers, a representation of a distribution of an anisotropic fill material having an anisotropic characteristic oriented relative to a trajectory of an anisotropic fill tool path, receiving a selection, from among the displayed shells or layers, of an editing subset, the editing subset including part of the anisotropic fill subset, and regenerating, for a shell or layer of the editing subset, one of a second representation of a distribution of isotropic fill material and a second representation of a distribution of anisotropic fill material.

公开(公告)号：US11988381B2

公开(公告)日：2024-05-21

申请号：US16897529

申请日：2020-06-10

Applicant: Markforged, Inc.

Inventor： Michelle Chao ,  Keith Durand ,  Rick Bryan Woodruff ,  Benjamin Hodsdon Gallup

IPC: F23G7/06 ,  B22F3/00 ,  F23G7/07 ,  F27B5/14 ,  F27B5/18 ,  F27D17/00 ,  F27B5/06 ,  F27B5/16 ,  F27D9/00 ,  F27D19/00

CPC classification number: F23G7/065 ,  B22F3/003 ,  F23G7/07 ,  F27B5/14 ,  F27B5/18 ,  F27D17/008 ,  F23G2207/10 ,  F23G2207/101 ,  F23G2207/30 ,  F23G2209/14 ,  F27B2005/068 ,  F27B2005/161 ,  F27D2009/0037 ,  F27D2019/0015 ,  F27D2019/0018 ,  F27D2019/0068

Abstract: Apparatus and methods for debinding articles. The apparatus and methods may transform binder from furnace exhaust before the exhaust is discharged to the atmosphere. The apparatus may include a furnace retort and a reactor. The furnace retort may be configured to: exclude ambient air; and receive a carrier gas. The reactor may be configured to: receive from the retort (a) the carrier gas and (b) material removed in the retort from the article; and combust, at a temperature no greater than 750° C., the material. The material may be decomposed binder. The material may be hydrocarbon from binder that is pyrolyzed in the retort. The carrier gas may include gas that is nonflammable gas.

公开(公告)号：US20210197493A1

公开(公告)日：2021-07-01

申请号：US17060916

申请日：2020-10-01

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark ,  Rick Bryan Woodruff ,  Michelle Ling Chao

IPC: B29C64/40 ,  B29C64/165 ,  B33Y10/00 ,  B22F3/11 ,  B29C64/245 ,  B29C64/295 ,  B29C31/04 ,  B29C64/141 ,  B29C64/118

Abstract: According to one aspect, embodiments of the invention provide a method of 3D printing, comprising depositing a model material in successive layers to form a part, the model material being a metal composite including greater than 50% by volume metal powder and less than 50% by volume a first removable binder, depositing the model material in successive layers to form a support structure adjacent the part, depositing a sinterable separation material between a surface of the part and a surface of the support structure, the sinterable separation material formed from 10-40% by volume ceramic powder and greater than 50% by volume a second removable binder, debinding the first removable binder of the model material and the second removable binder of the sinterable separation material, and sintering the part, the support structure, and the sinterable separation material at a temperature profile that sinters the model material and the sinterable separation material.

公开(公告)号：US20190270254A1

公开(公告)日：2019-09-05

申请号：US16419776

申请日：2019-05-22

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark ,  Rick Bryan Woodruff ,  Michelle Ling Chao

IPC: B29C64/40 ,  B29C64/165 ,  B33Y10/00 ,  B22F3/11 ,  B29C64/245 ,  B29C64/295 ,  B29C64/118 ,  B29C31/04 ,  B29C64/141

Abstract: According to one aspect, embodiments of the invention provide a method of 3D printing, comprising depositing a model material in successive layers to form a part, the model material being a metal composite including greater than 50% by volume metal powder and less than 50% by volume a first removable binder, depositing the model material in successive layers to form a support structure adjacent the part, depositing a sinterable separation material between a surface of the part and a surface of the support structure, the sinterable separation material formed from 10-40% by volume ceramic powder and greater than 50% by volume a second removable binder, debinding the first removable binder of the model material and the second removable binder of the sinterable separation material, and sintering the part, the support structure, and the sinterable separation material at a temperature profile that sinters the model material and the sinterable separation material.

公开(公告)号：US09815268B2

公开(公告)日：2017-11-14

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 ,  B29C70/16 ,  G05B19/4099 ,  G06F17/50 ,  B29C64/106 ,  B29C64/386 ,  B29K101/12 ,  B29K105/08 ,  B29C64/118 ,  B29K63/00 ,  B29K71/00 ,  B29K77/00 ,  B29K79/00 ,  B29K25/00

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.