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14 条记录 (耗时 0.014 秒)

    Three-dimensional printing using fast STL file conversion
    1.
    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

    申请人： The ExOne Company

    发明人： Daniel T. Brunermer ,  Patrick Stack ,  Lawrence Joseph Voss

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

    摘要： 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.

    Methods and Systems for Three-Dimensional Printing Utilizing a Jetted-Particle Binder Fluid
    4.
    发明申请
    Methods and Systems for Three-Dimensional Printing Utilizing a Jetted-Particle Binder Fluid 审中-公开
    使用喷射颗粒粘结剂流体进行三维打印的方法和系统

    公开(公告)号：US20160325495A1

    公开(公告)日：2016-11-10

    申请号：US15107528

    申请日：2014-12-17

    申请人： The ExOne Company

    发明人： Howard A. Kuhn ,  Jason W. Plymire ,  Rick D. Lucas ,  Jesse Blacker ,  Daniel T. Brunermer ,  Thomas Lizzi

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

    CPC分类号： B29C64/165 ,  B28B1/001 ,  B29K2105/16 ,  B33Y10/00 ,  B33Y70/00 ,  C04B35/52 ,  C04B35/522 ,  C04B35/622 ,  C04B35/6263 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/6026

    摘要： Methods and systems (20) are disclosed for making articles by three-dimensional printing. The methods include three-dimensionally printing articles by selectively jet-depositing a particle-bearing binder fluid (14) upon successive layers (4) of a build material powder (10) such that the particles (16) deposited with the binder fluid (14) increase the apparent density of the as-printed article. The particulate matter (16) of the binder fluid (12) is smaller than the mean particle size of the build material powder (10). Preferably, this jet-deposited particulate matter (16) has a mean particle size that is larger than about 1 to and smaller than or equal to 50 microns. The jet-deposited matter (16) acts to fill in the interparticle interstices of the build material powder (10) thereby simultaneously increasing the density of the printed article and improving its surface roughness and contour resolution, which in turn, improves the surface finish of the final article. The systems (20) include binder fluid handling systems (26) which are adapted to jet a binder fluid (14) containing such particulate matter (16).

    摘要翻译： 公开了用于通过三维打印制造制品的方法和系统（20）。 所述方法包括通过在构建材料粉末（10）的连续层（4）上选择性地喷射沉积含颗粒的粘结剂流体（14）使得沉积有粘合剂流体（14）的颗粒（16） ）增加印刷品的表观密度。 粘合剂流体（12）的颗粒物质（16）小于构成材料粉末（10）的平均粒度。 优选地，该喷射沉积颗粒物质（16）具有大于约1至小于或等于50微米的平均粒度。 喷射沉积物（16）用于填充构成材料粉末（10）的颗粒间隙，从而同时增加印刷制品的密度并提高其表面粗糙度和轮廓分辨率，这又提高了表面光洁度 最后的文章。 系统（20）包括粘合剂流体处理系统（26），其适于喷射含有这种颗粒物质（16）的粘合剂流体（14）。

    Three-Dimensional Printed Metal-casting Molds and Methods for Making the Same
    5.
    发明申请
    Three-Dimensional Printed Metal-casting Molds and Methods for Making the Same 审中-公开
    三维印刷金属铸造模具及其制造方法

    公开(公告)号：US20160193651A1

    公开(公告)日：2016-07-07

    申请号：US14911866

    申请日：2014-08-13

    申请人： THE EXONE COMPANY

    发明人： Michael J. Orange ,  Daniel T. Brunermer

    IPC分类号： B22C9/02 ,  B22C1/22

    摘要： Methods are disclosed of making metal casting molds and components thereof by the three-dimensional printing process in which an untreated sand is used as the build material and a polymer is used as a component of the binder that is printed onto the build material.

    摘要翻译： 公开了通过三维印刷工艺制造金属铸造模具及其组件的方法，其中使用未处理的砂作为构建材料，并且使用聚合物作为印刷在构建材料上的粘合剂的组分。

    Improved Powder Distribution System for Three-Dimensional Printer
    7.
    发明申请
    Improved Powder Distribution System for Three-Dimensional Printer 审中-公开

    公开(公告)号：US20200180227A1

    公开(公告)日：2020-06-11

    申请号：US16620696

    申请日：2018-06-12

    申请人： The ExOne Company

    发明人： Lawrence Joseph Voss ,  Joseph J. Bolt ,  Anthony S. Dugan ,  Michael John McCoy ,  Daniel T. Brunermer ,  Travis Maxwell Inks ,  Paul P. Knor

    IPC分类号： B29C64/329 ,  B29C64/205 ,  B07B1/40

    摘要： The present invention relates to apparatuses for distributing build powder in powder-layer three-dimensional printers (2) and for the collection of particulates of the build powder that have become suspended in the gaseous atmosphere in the vicinity of the build platform of the three-dimensional printer. These apparatuses include recoaters (20) that are particularly useful in providing uniform distribution of fine build powder across the width of the build platform or powder bed. The present invention also includes powder-layer three-dimensional printers (2) which comprise such apparatuses for distributing build powder and/or apparatuses for collecting such suspended particulates. The improved fine powder recoater (20) uses an ultrasonic transducer (30) to move powder through a sheet screen (28). The sheet screen (28) may be presented to the powder fed onto it in a narrow dispensing slot to limit the flow rate of powder from the dispenser and to provide control over the amount of powder dispensed. The width of the slot may extend to cover the entire build box fill zone. The ultrasonic transducer (30) is preferably adapted to periodically sweep through a range of frequencies during operation. The ultrasonic vibration system may be augmented with a low frequency vibration system. The dust collection system (160) draws air from the perimeter of the build box (172) down through the deck plate (170) of the printer (2) and out of the printer's housing (164) to an external dust collector (250).

    Three-Dimensional Printing Excess Deposited Particulate Handling
    8.
    发明申请
    Three-Dimensional Printing Excess Deposited Particulate Handling 审中-公开

    公开(公告)号：US20170120536A1

    公开(公告)日：2017-05-04

    申请号：US15319288

    申请日：2015-05-07

    申请人： The ExOne Company

    发明人： Daniel T. Brunermer ,  Anthony S. Dugan ,  Thomas Lizzi

    IPC分类号： B29C67/00 ,  B33Y40/00 ,  B33Y30/00

    CPC分类号： B33Y40/00 ,  B29C64/153 ,  B29C64/165 ,  B29C64/357 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y30/00 ,  B41J2/1714 ,  B41J29/02

    摘要： A three-dimensional printing apparatus is disclosed has one or more troughs for receiving excess deposited particulate. Such troughs may be positioned to receive the excess deposited particulate into a particulate receiving chamber of the trough. An evacuation chamber is located at the bottom of each trough. A partition separates the evacuation chamber from the receiving chamber of the trough. The partition is selectively perforated to permit a desired amount of the particulate to flow into the evacuation chamber from the receiving chamber. The evacuation chamber is connected to a vacuum source to periodically or continuously draw ambient gas from a gas inlet to the evacuation chamber and/or from the receiving chamber through the perforations of the partition and then through the evacuation chamber toward the vacuum source to entrain an amount of the particulate and carry the entrained particulate out of the evacuation chamber.