中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

24 records (took 0.014 seconds)

    Three-dimensional printing using fast STL file conversion
    2.
    发明授权
    Three-dimensional printing using fast STL file conversion 有权

    公开(公告)号：US10061284B2

    公开(公告)日：2018-08-28

    申请号：US15126724

    申请日：2015-03-19

    Applicant: The ExOne Company

    Inventor： Daniel T. Brunermer ,  Patrick Stack ,  Lawrence Joseph Voss

    IPC: G05B19/042 ,  G06T19/00 ,  B33Y50/00 ,  B33Y50/02 ,  B29C64/165 ,  B29C64/386

    Abstract: Methods are provided for solid free-form fabrication of an article without using a slice stack file quickly and efficiently—in terms of computational resources—converting STL files representing an article or articles to be built by SFFF without the use of a conventional slicing program. An application program interface (“API”) is used to generate a bitmap corresponding to each particular layer of the article that is to be printed directly from the article's STL file. This conversion may done essentially in real time immediately before the particular layer is to be printed. The bitmap is used in configuring the printing instructions for the SFFF printing mechanism to print that particular layer.

    Powder Particle Layerwise Three-Dimensional Printing Process
    4.
    发明申请
    Powder Particle Layerwise Three-Dimensional Printing Process 有权
    粉末颗粒层状三维印刷工艺

    公开(公告)号：US20150069649A1

    公开(公告)日：2015-03-12

    申请号：US14025343

    申请日：2013-09-12

    Applicant: The ExOne Company

    Inventor： John A. Bai ,  Kevin D. Creehan ,  Howard A. Kuhn

    IPC: B28B1/00 ,  B29C67/00

    CPC classification number: B28B1/001 ,  B22F1/0018 ,  B22F3/008 ,  B22F2998/10 ,  B29C64/165 ,  B29K2031/04 ,  B29K2039/06 ,  B29K2105/0005 ,  B29K2105/251 ,  B29K2303/04 ,  B29K2303/06 ,  B33Y10/00 ,  B33Y30/00 ,  C04B35/01 ,  C04B35/053 ,  C04B35/111 ,  C04B35/14 ,  C04B35/26 ,  C04B35/453 ,  C04B35/457 ,  C04B35/46 ,  C04B35/486 ,  C04B35/505 ,  C04B35/528 ,  C04B35/5626 ,  C04B35/565 ,  C04B35/581 ,  C04B35/584 ,  C04B35/632 ,  C04B35/634 ,  C04B2235/6026 ,  B22F3/1017

    Abstract: Three-dimensional printing processes are disclosed which utilize printable fluids comprising a carrier fluid, a polymeric binder, and nanoparticles. The three-dimensional printing processes are useful for making articles from a build material powder, e.g., a ceramic, metal, metal alloy, or intermetallic powder. The nanoparticles enable low temperature interparticle bonding of the build material powder particles, e.g., by forming bridging bonds between adjacent powder particles, and/or increasing the interparticle friction between the build material powder particles to enhance the structural strength of the as-built article during a thermal treatment over at least a part of the temperature range which has as its low end the temperature at which the structural strength due to the binder becomes insubstantial and as its high end the temperature at which the structural strength due to interparticle sintering of the build material powder becomes substantial, i.e., the article's debile temperature range. Green density improvements are achievable.

    Abstract translation: 公开了利用包含载体流体，聚合物粘合剂和纳米颗粒的可印刷流体的三维印刷方法。 三维印刷方法可用于从建筑材料粉末制造制品，例如陶瓷，金属，金属合金或金属间金属粉末。 纳米颗粒使得构建材料粉末颗粒的低温颗粒间粘合，例如通过在相邻的粉末颗粒之间形成桥接键和/或增加构建材料粉末颗粒之间的颗粒间摩擦，以增强构建的制品的结构强度 在至少一部分温度范围内进行热处理，该温度范围的低端是由于粘合剂引起的结构强度变得不实际的温度，并且由于其高端，由于构件的颗粒间烧结而引起的结构强度的温度 材料粉末变得很大，即物品的不良温度范围。 可实现绿色密度改进。

    Powder-layer three-dimensional printer with smoothing device
    6.
    发明授权
    Powder-layer three-dimensional printer with smoothing device 有权

    公开(公告)号：US10759115B2

    公开(公告)日：2020-09-01

    申请号：US16567136

    申请日：2019-09-11

    Applicant: The ExOne Company

    Inventor： Adam W. Stroud ,  Rick D. Lucas ,  Michael John McCoy ,  Anthony S. Dugan ,  Joseph J. Bolt

    IPC: B29C64/218 ,  B29C64/329

    Abstract: Powder layer smoothing devices (34) adapted for use with powder-layer three-dimensional printers (10) are described. The smoothing devices (34) include a counter rotating roller (36, 50, 60) having a complex powder engaging face (38) that may include a series or plurality of flutes (54) or may include knurling (64) extending along at least a portion of the counter rotating roller (36, 50, 60) along its rotational axis (56, 66). The smoothing device (34) may also include a vertically adjustable finishing roller (35) to follow the counter rotating roller (36, 50, 60) across the build box (12) of the powder-layer three-dimensional printer (10).

    Selectively activated mesh discharge powder recoater for three-dimensional printing
    7.
    发明授权
    Selectively activated mesh discharge powder recoater for three-dimensional printing 有权

    公开(公告)号：US10363730B2

    公开(公告)日：2019-07-30

    申请号：US15252375

    申请日：2016-08-31

    Applicant: The ExOne Company

    Inventor： Andrew P. Klein ,  Lawrence J. Voss ,  Anthony S. Dugan ,  Michael R. Orner ,  Thomas Lizzi

    IPC: B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/165 ,  B29C64/205

    Abstract: Recoaters are described which are adapted for use in powder-layer three-dimensional printers. The recoaters comprise a mesh discharge device that is adapted to be selectively activated by the application of an agitation, e.g. a vibration. Such mesh discharge devices include a planar mesh, i.e. a screen or sieve, which is adapted to support a quantity of powder when the quantity of powder and the mesh are static and to dispense at least a portion of the quantity of powder when at least one of the quantity of powder and the mesh is agitated. Preferably, the mesh is disposed substantially horizontally, but may be disposed at an angle to the horizontal. Also described are powder-layer three-dimensional printers comprising such recoaters. In some embodiments, the powder-layer three-dimensional printers are adapted to space the mesh no more than about two to ten powder layer thicknesses from the top surface of the powder bed or substrate upon which a powder layer is to be deposited.

    Recoaters for powder-layer three-dimensional printers
    9.
    发明授权
    Recoaters for powder-layer three-dimensional printers 有权
    粉末层三维打印机的回收机

    公开(公告)号：US09446448B2

    公开(公告)日：2016-09-20

    申请号：US14945884

    申请日：2015-11-19

    Applicant: The ExOne Company

    Inventor： Michael John McCoy ,  Anthony S. Dugan

    IPC: B29C67/00 ,  B22F3/105 ,  B33Y30/00

    CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B29C64/153 ,  B29C64/165 ,  B29C64/20 ,  B33Y30/00 ,  Y02P10/295

    Abstract: Recoaters for powder-layer three-dimensional printers which are capable of producing enhanced powder layer uniformity and powder-layer three-dimensional printers having such recoaters are described. The recoater comprises a bridge, two supports, one at either end of the bridge, a powder reservoir, and a substantially rectangular plate which extends between the two supports and contains an opening through which the powder reservoir either extends into or through or through which build powder can be fed into the powder reservoir. The plate has a length to minimum width ratio of no more than about 7.0 and a length to maximum width ratio of no more than about 5.0, the plate being adapted to brace the bridge into a perpendicular relationship with the first and second supports when the recoater is being controllably moved and the powder reservoir is dispensing powder to form a powder layer.

    Abstract translation: 描述了能够产生增强的粉末层均匀性的粉末层三维打印机的回收器和具有这种重涂器的粉末层三维打印机。 重涂器包括桥，两个支撑件，一个在桥的两端，一个粉末储存器和一个基本上矩形的板，其在两个支撑件之间延伸并且包含一个开口，粉末储存器通过该开口延伸进入或穿过该构件 粉末可以进料到粉末储存器中。 该板具有不大于约7.0的长度与最小宽度比，长度与最大宽度之比不大于约5.0，当该重新涂覆时，该板适于将该桥与第一和第二支撑件垂直关系 可控地移动并且粉末储存器分配粉末以形成粉末层。

    Three-dimensional printing glass articles
    10.
    发明授权
    Three-dimensional printing glass articles 有权
    三维印刷玻璃制品

    公开(公告)号：US08991211B1

    公开(公告)日：2015-03-31

    申请号：US12925812

    申请日：2010-10-29

    Applicant: John C. Arlotti ,  Paul Knor

    Inventor： John C. Arlotti ,  Paul Knor

    IPC: C03B19/09 ,  C03B19/01 ,  C03B19/06

    CPC classification number: C03B19/01 ,  C03B19/00 ,  C03B19/06 ,  C03B19/09

    Abstract: Methods for producing glass articles of a wide range of geometrical shapes, including shapes that are heretofore difficult or impossible to make monolithically. The glass articles are made by first building the nascent glass article from glass powder and a binder using a three-dimensional printing free-form fabrication process followed by sintering the nascent glass article at a temperature that is hundreds of degrees above the glass powder composition's glass transition temperature while supporting the nascent glass article in a bed of an inert powder having a high flowability.

    Abstract translation: 用于制造宽范围几何形状的玻璃制品的方法，包括迄今困难或不可能整体制造的形状。 玻璃制品通过首先使用三维印刷自由形式制造工艺从玻璃粉末和粘结剂中制造新生玻璃制品，然后在玻璃粉末组合物玻璃上方几百度的温度下烧结新生玻璃制品 同时将初生玻璃制品支撑在具有高流动性的惰性粉末床中。

Patent Agency Ranking