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    ADDITIVE MANUFACTURING SYSTEM WITH SLIDING THERMAL ISOLATOR
    51.
    发明申请
    ADDITIVE MANUFACTURING SYSTEM WITH SLIDING THERMAL ISOLATOR 审中-公开

    公开(公告)号：US20190240904A1

    公开(公告)日：2019-08-08

    申请号：US16327531

    申请日：2017-08-23

    Applicant: Stratasys, Inc.

    Inventor： William J. Swanson ,  Dominic F. Mannella

    IPC: B29C64/25 ,  B33Y30/00 ,  B29C64/227

    Abstract: An additive manufacturing system includes a build chamber with at least first and second side walls and top and bottom walls. A central deformable, thermal insulator has a first edge and a second edge, where a print head carriage is movably retained within the central deformable thermal insulator and is configured to move print heads within a build plane of the build chamber under control of a gantry. The system includes first and second dynamic thermal barriers each having a length between a proximal edge and a distal edge wherein the proximal edge is configured to be secured to the central deformable insulator and a distal edge is configured to be movably retained to the build chamber such that as the print head carriage moves laterally across the build plane, each dynamic thermal barrier moves with the central deformable insulator and print head carriage, and retains its length.

    METHOD FOR PRINTING THREE-DIMENSIONAL PARTS WITH CRYSTALLIZATION KINETICS CONTROL
    53.
    发明申请
    METHOD FOR PRINTING THREE-DIMENSIONAL PARTS WITH CRYSTALLIZATION KINETICS CONTROL 审中-公开

    公开(公告)号：US20190111615A1

    公开(公告)日：2019-04-18

    申请号：US16217435

    申请日：2018-12-12

    Applicant: Stratasys, Inc.

    Inventor： Luke M.B. Rodgers ,  Vittorio L. Jaker

    IPC: B29C64/118 ,  B33Y50/02 ,  G03G15/22 ,  B29C64/112 ,  B29C64/386 ,  B29C71/00 ,  B29C64/106 ,  B29C71/02 ,  B29B13/02

    Abstract: A method for printing a three-dimensional part with an additive manufacturing system, which includes providing a part material that compositionally has one or more semi-crystalline polymers and one or more secondary materials that are configured to retard crystallization of the one or more semi-crystalline polymers, where the one or more secondary materials are substantially miscible with the one or more semi-crystalline polymers. The method also includes melting the part material in the additive manufacturing system, forming at least a portion of a layer of the three-dimensional part from the melted part material in a build environment, and maintaining the build environment at an annealing temperature that is between a glass transition temperature of the part material and a cold crystallization temperature of the part material.

    MAGNETICALLY THROTTLED LIQUEFIER ASSEMBLY
    54.
    发明申请
    MAGNETICALLY THROTTLED LIQUEFIER ASSEMBLY 审中-公开

    公开(公告)号：US20190015884A1

    公开(公告)日：2019-01-17

    申请号：US16132614

    申请日：2018-09-17

    Applicant: Stratasys, Inc.

    Inventor： J. Samuel Batchelder ,  Robert L. Zinniel

    IPC: B21C23/00 ,  B33Y30/00

    Abstract: A magnetically throttled liquefier assembly for use in an additive manufacturing system and configured to heat a metal-based alloy to an extrudable state includes an array of magnets to generate a magnetic field in order to induce a viscosity in the heated metal-based alloy and to control the flow rate of the heated metal-based alloy through the liquefier for extrusion and the building of a three-dimensional object with the metal-based alloy.

    ADDITIVE MANUFACTURING SYSTEM WITH A CHANNELED STARTER PIECE AND METHOD OF PRINTING A 3D PART UTILIZING THE STARTER PIECE
    55.
    发明申请
    ADDITIVE MANUFACTURING SYSTEM WITH A CHANNELED STARTER PIECE AND METHOD OF PRINTING A 3D PART UTILIZING THE STARTER PIECE 审中-公开

    公开(公告)号：US20180290398A1

    公开(公告)日：2018-10-11

    申请号：US15483610

    申请日：2017-04-10

    Applicant: Stratasys, Inc.

    Inventor： Dominic F. Mannella ,  William J. Swanson

    IPC: B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

    Abstract: An additive manufacturing system for printing a 3D part includes a build platen and a starter piece supported by the build platen. The starter piece comprises a build surface having a plurality of channels and wherein the build surface has a void fraction due to an open surface area of the channels ranging from about 0.5 to about 0.95. The print head includes a nozzle configured to extrude a molten material in a print plane and wherein the extruded material is configured fill a space between the build surface and the print plane and at least partially fill a portion of the plurality of channels such that a base layer of material is printed having a substantially planar surface upon which a 3D part can be printed along a print axis.

    Additive manufacturing process with dynamic heat flow control
    56.
    发明授权
    Additive manufacturing process with dynamic heat flow control 有权

    公开(公告)号：US10086564B2

    公开(公告)日：2018-10-02

    申请号：US14046315

    申请日：2013-10-04

    Applicant: Stratasys, Inc.

    Inventor： J. Samuel Batchelder ,  William J. Swanson ,  Kevin C. Johnson

    IPC: B29C44/02 ,  B29C67/00 ,  B29B13/02 ,  B33Y10/00 ,  B29C35/02

    Abstract: A liquefier assembly for use in an additive manufacturing system, which includes a rigid member having a gap, a liquefier tube operably disposed in the gap, one or more heater assemblies disposed in the gap in contact with the liquefier tube, and configured to heat the liquefier tube in a zone-by-zone manner, preferably one or more thermal resistors disposed in the gap between the rigid member and the heater assemblies, and preferably one or more sensors configured to operably measure pressure within the liquefier tube. The one or more heater assemblies may be operated to provide dynamic heat flow control.

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