公开(公告)号：US10807273B2

公开(公告)日：2020-10-20

申请号：US14948921

申请日：2015-11-23

Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

Inventor： Kevin J. Kramer ,  Andrew Bayramian ,  James A. DeMuth ,  Bassem S. El-dasher

IPC: B28B1/00 ,  B33Y30/00 ,  B22D11/10 ,  B22D11/01 ,  B33Y10/00 ,  B22F3/105

Abstract: A system of 3D printing using a high temperature 3D print head that functions as a “modified ink jet” printer. The print head has the ability to print high temperature material such as metal, silicon carbide, and other high temperature material as opposed to inks or plastics. The print head is fabricated from a high temperature material to maintain structural integrity while operation at temperatures above the melting temperature for the material that is being printed.

公开(公告)号：US20190375003A1

公开(公告)日：2019-12-12

申请号：US16427448

申请日：2019-05-31

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark

IPC: B22D31/00 ,  B22D11/01 ,  B22D27/00 ,  B33Y10/00 ,  B33Y30/00 ,  B22F3/105

Abstract: In molten metal jetting, where droplets of metal are jetted to 3D print a part, each layer may be traversed each successive layer with a normalizing grinding wheel or other leveling device such as a layer to level each successive layer, and/or the melt reservoir or printing chamber may be filled with an anoxic gas mix to prevent oxidation.

公开(公告)号：US10166600B2

公开(公告)日：2019-01-01

申请号：US15792958

申请日：2017-10-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuta Egawa

IPC: B22D11/01 ,  B22D11/14 ,  B22D23/00 ,  B22D27/04 ,  B22D11/12 ,  B22D11/124

Abstract: In a formed body manufacturing method, molten metal is led out from a molten metal surface of the molten metal held in a holding furnace and is passed through a shape defining member configured to define a sectional shape of the formed body, and the formed body manufacturing method includes: measuring a surface temperature of the formed body formed such that retained molten metal that has passed through the shape defining member solidifies; adjusting a height of a coating material spray nozzle based on a result of the measurement of the surface temperature of the formed body so that the surface temperature of the formed body to which the heat dissipation coating material is blown becomes a solidifying point of the molten metal or less; and spraying the heat dissipation coating material to a surface of the formed body from the coating material spray nozzle.

公开(公告)号：US20180154439A1

公开(公告)日：2018-06-07

申请号：US15829500

申请日：2017-12-01

Applicant: MARKFORGED, INC.

Inventor： Gregory Thomas Mark

IPC: B22F3/10 ,  B22F3/105 ,  B22F3/11 ,  B22D11/01

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 with a binder matrix and a sinterable powder, walls of a part, sintering supports, or interconnecting platform are formed with access, distribution or routing channels therein to permit debinding fluid to pass through and/or enter the interior of the same.

公开(公告)号：US09764378B2

公开(公告)日：2017-09-19

申请号：US13856698

申请日：2013-04-04

Applicant: Massachusetts Institute of Technology

Inventor： Benjamin Peters ,  Neri Oxman

IPC: B32B37/12 ,  B22D11/01 ,  B32B38/10 ,  B29C70/52 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B22D11/12 ,  B22D11/14

CPC classification number: B22D11/01 ,  B22D11/1206 ,  B22D11/14 ,  B29C64/106 ,  B29C64/112 ,  B29C64/141 ,  B29C64/147 ,  B29C70/52 ,  B32B37/12 ,  B32B38/10 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: In exemplary implementations of this invention, an actuated fabricator deposits structural elements (e.g., tensile structural elements) in a 3D pattern over large displacements. The fabricator is supported by at least three elongated support members. It includes onboard actuators that translate the fabricator relative to the ends of the support members. The fabricator is configured, by actuating different translations along different support members, to translate itself throughout a 3D volume. In some implementations, each of the actuators use fusible material to fuse metal tapes together, edge-to-edge, to form a hollow structure that can be shortened or lengthened.

公开(公告)号：US09751128B2

公开(公告)日：2017-09-05

申请号：US15036977

申请日：2014-10-01

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Naoaki Sugiura ,  Yusuke Yokota

IPC: B22D11/18 ,  B22D11/01 ,  B22D11/14 ,  B22D11/20

CPC classification number: B22D11/188 ,  B22D11/01 ,  B22D11/145 ,  B22D11/20

Abstract: A pulling-up-type continuous casting apparatus includes a holding furnace that holds molten metal, a shape defining member disposed above a surface of the molten metal held in the holding furnace, and configured to define a cross-sectional shape of a cast-metal article as the molten metal passes through it, an image pickup unit that takes an image of the molten metal that has passed through the shape defining member, an image analysis unit that detects a fluctuation on the molten metal from the image and determines a solidification interface based on presence/absence of the fluctuation, and a casting control unit that changes a casting condition only when the solidification interface determined by the image analysis unit is not within a predetermined reference range. The casting control unit uses a reference range which differs according to the pulling-up angle of the molten metal.

公开(公告)号：US09697817B2

公开(公告)日：2017-07-04

申请号：US15154155

申请日：2016-05-13

Applicant: ZIN TECHNOLOGIES, INC.

Inventor： Bart F. Zalewski ,  William Dial ,  Arthur J. Birchenough

IPC: G10K11/172 ,  B22D11/01 ,  B33Y10/00 ,  B33Y80/00 ,  B29C67/00 ,  E04B1/84

CPC classification number: G10K11/172 ,  B29C64/106 ,  B33Y10/00 ,  B33Y80/00 ,  E04B2001/8433

Abstract: An acoustic attenuation device extends from a first end to a second end and includes first and second sheets. A plurality of webs positioned between the first and second sheets cooperates with the first and second sheets to form a series of sound attenuation chambers containing a volume and mass of fluid. A first panel secured to the sheets closes the chambers at the first end of the device. A second panel secured to the sheets closes the chambers at the second end of the device. The device further includes first and second openings associated with each chamber and through which excited fluid resonates. The first and second openings extend through the first sheet into each chamber. The first openings have an invariable cross-section. At least one of the second openings has an adjustable cross-section for varying a resonant frequency of the chamber.

公开(公告)号：US20170056966A1

公开(公告)日：2017-03-02

申请号：US15245702

申请日：2016-08-24

Applicant: Desktop Metal, Inc.

Inventor： Jonah Samuel Myerberg ,  Ric Fulop ,  Ricardo Chin ,  Yet Ming-Chiang

IPC: B22D11/01 ,  B33Y50/02 ,  B22D11/18 ,  B33Y30/00

CPC classification number: B22D11/18 ,  B22D11/01 ,  B22D23/003 ,  B22D37/00 ,  B22D39/00 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  Y02P10/295 ,  B22F3/115

Abstract: An additive manufacturing system uses electrohydrodynamic (EHD) printing techniques to form a metallic object based upon a digital model. A metal build material is melted within a reservoir and expelled through an outlet of an expeller in a controlled manner using EHD force to modulate surface tension on a meniscus of the liquid metal at the outlet of the expeller. Concurrently, a positioning robotics system moves the expeller relative to a print bed along a toolpath that forms the solidifying metal droplets into a net shape according to the digital model.

Abstract translation: 添加剂制造系统使用电动力学（EHD）印刷技术来形成基于数字模型的金属物体。 金属构建材料在储存器内熔化并通过EHD力以受控的方式通过排出器的出口排出，以调节在挤出机出口处的液态金属的弯液面上的表面张力。 同时，定位机器人系统沿着沿着形成固化金属液滴的刀具路径相对于打印床移动排出器，根据数字模型形成网状。

公开(公告)号：US09289820B1

公开(公告)日：2016-03-22

申请号：US14692034

申请日：2015-04-21

Applicant: UT-Battelle, LLC

Inventor： Gerard M. Ludtka ,  John B. Wilgen

IPC: B22D11/01 ,  B22D11/108 ,  B22D11/115 ,  B22D11/124 ,  B22D19/14 ,  B22D25/00 ,  B22D45/00

CPC classification number: B22D45/00 ,  B22D11/015 ,  B22D11/108 ,  B22D11/115 ,  B22D11/124 ,  B22D19/14 ,  B22D25/00 ,  B22D27/02

Abstract: An apparatus for dispersing particles within a molten material in a mold-less casting process comprises a primary electromagnet for generating an AC magnetic field and a secondary electromagnet adjacent to the primary electromagnet for generating an independent DC magnetic field. Each of the primary and secondary electromagnets comprises a coil and at least one of the electromagnets is positioned about a common longitudinal axis. A heat source may be positioned at a first end of the common longitudinal axis for forming a melt to be exposed to the AC and DC magnetic fields, and a particle injection device is positioned at one or more positions about the common longitudinal axis for injecting particles into the melt during magnetic field exposure. The apparatus does not include a solid body for containing the melt prior to solidification.

Abstract translation: 用于在无模铸造工艺中将熔融材料中的颗粒分散的装置包括用于产生交流磁场的主电磁体和与主电磁体相邻的用于产生独立的直流磁场的次级电磁体。 主电磁体和次电磁体中的每一个包括线圈，并且至少一个电磁体围绕共同的纵向轴线定位。 热源可以位于公共纵向轴线的第一端，以形成暴露于AC和DC磁场的熔体，并且颗粒注入装置位于围绕公共纵向轴线的一个或多个位置，用于注入颗粒 在磁场暴露期间进入熔体。 该装置不包括用于在凝固之前容纳熔体的固体。

公开(公告)号：US20150251245A1

公开(公告)日：2015-09-10

申请号：US14638348

申请日：2015-03-04

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Naoaki Sugiura ,  Shoichi Tsuchiya ,  Yusuke Yokota

IPC: B22D11/16 ,  B22D25/02 ,  B22D11/12 ,  B22D11/01 ,  B22D11/14

CPC classification number: B22D11/142 ,  B22D11/01 ,  B22D11/1206 ,  B22D11/141 ,  B22D11/145 ,  B22D11/225

Abstract: An up-drawing continuous casting apparatus according to one aspect of the invention includes a molten metal holding furnace that holds molten metal; a shape determining member that is arranged near a molten metal surface of the molten metal held in the molten metal holding furnace, and that determines a sectional shape of a cast casting by the molten metal passing through the shape determining member, the shape determining member including a pattern provided on an upper surface of the shape determining member; an imaging portion configured to capture an image of the pattern that is reflected onto both retained molten metal that has passed through the shape determining member, and the casting formed by the retained molten metal solidifying; an image analyzing portion configured to determine a solidification interface from the image; and a casting controlling portion configured to change a casting condition.

Abstract translation: 根据本发明的一个方面的上拉连续铸造设备包括：熔融金属保持炉，其保持熔融金属; 形状确定部件，其配置在保持在熔融金属保持炉内的熔融金属的熔融金属表面附近，并且决定通过形状判定部件的熔融金属的铸造件的截面形状，所述形状判定部件包括 设置在形状确定构件的上表面上的图案; 被配置为捕获反射到已经通过形状确定构件的保留的熔融金属上的图案的图像和由保留的熔融金属凝固形成的铸件的成像部分; 图像分析部，被配置为从所述图像确定凝固界面; 以及配置成改变铸造条件的铸造控制部。