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    Rapid manufacturing of tailored preforms
    2.
    发明授权
    Rapid manufacturing of tailored preforms 有权

    公开(公告)号：US11325281B2

    公开(公告)日：2022-05-10

    申请号：US16519746

    申请日：2019-07-23

    申请人： UT-Battelle, LLC

    发明人： Vlastimil Kunc ,  Craig A. Blue ,  Ahmed A. Hassen ,  John M. Lindahl ,  Lonnie J. Love ,  Brian K. Post

    IPC分类号： B29C31/08 ,  B29C43/34 ,  B29C43/18 ,  B29C31/04

    摘要： A method for rapid manufacturing of three dimensional discontinuous fiber preforms is provided. The method includes the deposition of a polymeric material containing fibers on a surface to form a tailored charge for compression molding. The reinforced polymeric material may be a thermoplastic or a reactive polymer with viscosity low enough to allow flow through an orifice during deposition, yet high enough zero shear viscosity to retain the approximate shape of the deposited charge. The material can be deposited in a predetermined pattern to induce the desired mechanical properties through alignment of the fibers. This deposition can be performed in a single layer or in multiple layers. The alignment is achieved passively by shear alignment of the fibers or actively through fiber orientation control or mixing. The fibers can be of the desired material, length, and morphology, including short and long filaments.

    RAPID MANUFACTURING OF TAILORED PREFORMS
    5.
    发明申请
    RAPID MANUFACTURING OF TAILORED PREFORMS 审中-公开

    公开(公告)号：US20200023556A1

    公开(公告)日：2020-01-23

    申请号：US16519746

    申请日：2019-07-23

    申请人： UT-Battelle, LLC

    发明人： Vlastimil Kunc ,  Craig A. Blue ,  Ahmed A. Hassen ,  John M. Lindahl ,  Lonnie J. Love ,  Brian K. Post

    IPC分类号： B29C31/08 ,  B29C31/04 ,  B29C43/18 ,  B29C43/34

    摘要： A method for rapid manufacturing of three dimensional discontinuous fiber preforms is provided. The method includes the deposition of a polymeric material containing fibers on a surface to form a tailored charge for compression molding. The reinforced polymeric material may be a thermoplastic or a reactive polymer with viscosity low enough to allow flow through an orifice during deposition, yet high enough zero shear viscosity to retain the approximate shape of the deposited charge. The material can be deposited in a predetermined pattern to induce the desired mechanical properties through alignment of the fibers. This deposition can be performed in a single layer or in multiple layers. The alignment is achieved passively by shear alignment of the fibers or actively through fiber orientation control or mixing. The fibers can be of the desired material, length, and morphology, including short and long filaments.

    METHOD FOR PRINTING LOW-DENSITY POLYMER STRUCTURES
    6.
    发明申请
    METHOD FOR PRINTING LOW-DENSITY POLYMER STRUCTURES 审中-公开

    公开(公告)号：US20190338106A1

    公开(公告)日：2019-11-07

    申请号：US16403995

    申请日：2019-05-06

    申请人： UT-BATTELLE, LLC

    发明人： Vlastimil Kunc ,  John M. Lindahl ,  Lonnie J. Love ,  Brian K. Post ,  Ahmed Hassen ,  Peng Liu ,  Thomas Zeke Sudbury

    IPC分类号： C08K7/28 ,  C08K7/06 ,  B29C64/165 ,  B29C64/118 ,  B33Y70/00

    摘要： A method of forming a low-density three-dimensional article is provided. The method includes printing a low-density composition on a substrate to form at least one layer comprising the low-density composition. The low-density composition includes a (P) polymer component and (M) a microsphere component in a ratio by volume (P):(M). The method also includes selectively controlling a density of the low-density composition during printing to give the at least one layer on the substrate. Selectively controlling the density of the low-density composition includes varying the ratio (P):(M) during printing. The method further includes repeating the printing and selectively controlling the density of the low-density composition to form additional layer(s), thereby forming the low-density three-dimensional article. A low-density three-dimensional article prepared in accordance with the method is also provided.

    ENHANCED ADDITIVE MANUFACTURING WITH A RECIPROCATING PLATEN
    8.
    发明申请
    ENHANCED ADDITIVE MANUFACTURING WITH A RECIPROCATING PLATEN 有权
    用补充板加强添加剂的制造

    公开(公告)号：US20160107389A1

    公开(公告)日：2016-04-21

    申请号：US14517571

    申请日：2014-10-17

    申请人： UT-Battelle, LLC

    发明人： Randall F. LIND ,  Craig A. Blue ,  Lonnie J. Love ,  Brian K. Post ,  Peter D. Lloyd

    IPC分类号： B29C67/00

    CPC分类号： B29C47/122 ,  B29C64/106 ,  B29C64/20 ,  B29C64/209 ,  B29C64/386 ,  B29K2101/12 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

    摘要： An additive manufacturing extrusion head that includes a heated nozzle for accepting a feedstock and extruding the feedstock onto a substrate at a deposition plane, the nozzle having a longitudinal extrusion axis. A reciprocating platen surrounds the nozzle, the platen operable to reciprocate along the extrusion axis at or above the deposition plane as the nozzle extrudes feedstock onto the substrate; and wherein the platen flattens the extruded feedstock such that it does not protrude above the deposition plane as the extrusion head traverses over the substrate.

    摘要翻译： 一种添加剂制造挤出头，其包括用于接收原料的加热喷嘴，并将原料在沉积平面上挤出到基材上，喷嘴具有纵向挤出轴。 往复式压板围绕喷嘴，当喷嘴将原料挤出到基板上时，压板可操作地沿着挤出轴线在沉积平面上或上方往复运动; 并且其中所述压板使挤出的原料平坦化，使得当挤出头横过基底时，其不会突出在沉积平面上方。

    Energy Efficient Fluid Powered Linear Actuator With Variable Area and Concentric Chambers
    9.
    发明申请
    Energy Efficient Fluid Powered Linear Actuator With Variable Area and Concentric Chambers 有权
    节能型流体动力线性致动器，带有可变面积和同心腔

    公开(公告)号：US20160061229A1

    公开(公告)日：2016-03-03

    申请号：US14468629

    申请日：2014-08-26

    申请人： UT-Battelle, LLC

    发明人： Randall F. Lind ,  Lonnie J. Love

    IPC分类号： F15B13/042 ,  F15B13/04

    CPC分类号： F15B11/006 ,  F15B11/036 ,  F15B21/14 ,  F15B2211/30575 ,  F15B2211/625 ,  F15B2211/6336 ,  F15B2211/7055 ,  F15B2211/7107 ,  F15B2211/761 ,  F15B2211/88

    摘要： Hydraulic actuation systems having concentric chambers, variable displacements and energy recovery capabilities include cylinders with pistons disposed inside of barrels. When operating in energy consuming modes, high speed valves pressurize extension chambers or retraction chambers to provide enough force to meet or counteract an opposite load force. When operating in energy recovery modes, high speed valves return a working fluid from extension chambers or retraction chambers, which are pressurized by a load, to an accumulator for later use.

    摘要翻译： 具有同心室，可变排量和能量回收能力的液压致动系统包括设置在桶内的活塞的气缸。 当以能量消耗模式操作时，高速阀对扩展室或收回室加压，以提供足够的力来满足或抵消相反的载荷力。 当以能量回收模式操作时，高速阀将来自被负载加压的延伸室或回缩室的工作流体返回到蓄电池供以后使用。