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1334 条记录 (耗时 0.022 秒)

    SYSTEM AND METHOD FOR 3D PRINTING WITH METAL FILAMENT MATERIALS
    72.
    发明申请
    SYSTEM AND METHOD FOR 3D PRINTING WITH METAL FILAMENT MATERIALS 有权

    公开(公告)号：US20210354368A1

    公开(公告)日：2021-11-18

    申请号：US17443597

    申请日：2021-07-27

    申请人： Stratasys, Inc.

    发明人： Robert L. Zinniel ,  S. Scott Crump ,  Dominic F. Mannella

    IPC分类号： B29C64/118 ,  B29C64/124 ,  B29C64/40 ,  B33Y30/00 ,  B29C64/295 ,  B21C33/02 ,  B33Y10/00 ,  B29C48/92 ,  B29C64/20

    摘要： An additive manufacturing system configured to a 3D print using a metal wire material includes a drive mechanism configured to feed the metal feedstock into an inlet tube and a liquefier. The liquefier has a chamber configured to accept the metal feedstock from the inlet tube. The metal feed stock is heated in the chamber such that a melt pool is formed in the chamber. The liquefier has an extrusion tube in fluid communication with the chamber, the extrusion tube having a length (L) and a diameter (D) wherein the ratio of length to diameter (L/D) ranges from about 4:1 to about 20:1. The system has a platen with a surface configured to accept melted material from the liquefier, wherein the platen and the liquefier move in at least three dimensions relative to each other. The system includes a regulated source of pressurized inert gas flowably coupled to the liquefier and configured to place a controlled positive pressure onto the melt pool sufficient to overcome the resistance of the extrusion tube such that a part may be formed by the extrusion of the liquidus metal along toolpaths defined by the relative motion of the liquefier and the platen.

    Additive Manufacturing Apparatus, System, and Method
    73.
    发明申请
    Additive Manufacturing Apparatus, System, and Method 有权

    公开(公告)号：US20210354364A1

    公开(公告)日：2021-11-18

    申请号：US17156986

    申请日：2021-01-25

    申请人： PAXIS LLC

    发明人： Frederick Knecht ,  Michael G. Littrell

    IPC分类号： B29C64/106 ,  B29C64/218 ,  B33Y10/00 ,  B29C64/20 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/245 ,  B29C64/129 ,  B29C64/236 ,  B29C64/255 ,  B29C64/268 ,  B29C64/277

    摘要： An apparatus for producing a three-dimensional object includes a support assembly having a build platform, a track extending through a build area, and a deposition mechanism mounted on the track and configured for producing the three-dimensional object in a layer-by-layer technique. The deposition mechanism includes a carriage movable along the track, a supply of a flowable material mounted on the carriage, a roller in communication with the flowable material, where the roller is rotatably mounted on the carriage and configured for rotating to carry the flowable resin to an application for application to produce the object, and an exposure device mounted on the carriage. The exposure device emits electromagnetic waves to an exposure site to solidify the applied flowable material to produce the object. The roller is permeable to the electromagnetic waves, such that the waves pass through the roller in traveling from the exposure device to the exposure site.

    SELECTIVE LASER SOLIDIFICATION APPARATUS AND METHOD
    74.
    发明申请
    SELECTIVE LASER SOLIDIFICATION APPARATUS AND METHOD 有权

    公开(公告)号：US20210354197A1

    公开(公告)日：2021-11-18

    申请号：US17386695

    申请日：2021-07-28

    申请人： RENISHAW PLC

    发明人： Ben Ian FERRAR

    IPC分类号： B22F3/10 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/268 ,  B29C64/20 ,  B29C64/153 ,  B23K26/342 ,  B33Y10/00 ,  B29C64/364 ,  B22F10/20 ,  B29C64/386 ,  B22F10/00 ,  B22F10/30 ,  B22F10/322 ,  B22F10/28 ,  B22F10/32

    摘要： A method of selecting a scanning sequence of a laser beam in a selective laser solidification process, in which one or more objects are formed layer-by-layer by repeatedly depositing a layer of powder on a powder bed and scanning the laser beam over the deposited powder to selectively solidify at least part of the powder layers, includes determining an order in which areas should be scanned by: projecting a debris fallout zone that would be created when solidifying each area based on a gas flow direction of a gas flow passed over the powder bed; determining whether one or more other areas to be solidified fall within the debris fallout zone; and selecting to solidify the one or more other areas that fall within the debris fallout zone before solidifying the area from which the debris fallout zone has been projected.

    Powder module
    77.
    发明授权
    Powder module 有权

    公开(公告)号：US11141789B2

    公开(公告)日：2021-10-12

    申请号：US16144565

    申请日：2018-09-27

    申请人： CONCEPT LASER GMBH

    发明人： Jens Stammberger ,  Alexander Hofmann ,  Olaf Jäger ,  Lukas Stache

    IPC分类号： B29C64/245 ,  B22F7/08 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/236 ,  B22F12/00 ,  B29C64/20 ,  B29C64/25 ,  B22F10/10 ,  B33Y70/00

    摘要： Powder module (1) for an apparatus for additively manufacturing three-dimensional objects, the powder module (1) comprising a powder chamber (6) having a power chamber volume (7) and a carrying device (9), the carrying device (9) comprising: a carrying unit (8) being moveably supported along a motion axis between a first position, particularly a lower end position, and a second position, particularly an upper end position, relative to the powder chamber (6), a drive unit (10) for generating a drive force for moving the carrying unit (8) between the first position and the second position or vice versa, a coupling unit (11) for coupling the carrying unit (8) with the drive unit (10), and a second extension state, particularly corresponding to the second position of the carrying unit (8), a guiding unit (12) surrounding the coupling unit (11).