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    CLEANING AND FINISHING A CERAMIC MOLD
    2.
    发明公开
    CLEANING AND FINISHING A CERAMIC MOLD 失效
    REINIGUNG UND ENDBEARBEITUNG EINER KERAMISCHEN FORM

    公开(公告)号：EP0693001A4

    公开(公告)日：1996-11-27

    申请号：EP94902341

    申请日：1993-11-22

    申请人： MASSACHUSETTS INST TECHNOLOGY

    发明人： SACHS EMANUEL M ,  CIMA MICHAEL J ,  BREDT JAMES F ,  KHANUJA SATBIR

    IPC分类号： B08B3/10 ,  B08B3/12 ,  B08B5/04 ,  B08B7/00 ,  B08B9/00 ,  B08B9/08 ,  B22C9/18 ,  B22C23/02 ,  B22F3/00 ,  B24B1/04 ,  B29C33/56 ,  B05B3/02 ,  B05B5/00 ,  B08B3/00 ,  B24B1/00

    CPC分类号： B22F3/008 ,  B08B3/10 ,  B08B3/12 ,  B08B5/04 ,  B08B7/00 ,  B08B9/00 ,  B22C9/18 ,  B24B1/04 ,  B29C33/56 ,  B33Y40/00 ,  B33Y70/00 ,  B33Y80/00

    摘要： A technique for removing loose powder from the interior surfaces of ceramic molds made using layer manufacturing processes, such as three dimensional printing processes. The interior of a mold can be filled with liquid, such as water, which is boiled by applying microwave energy of a frequency selected to heat the liquid. The particles are entrained in the flow caused by the boiling liquid. Alternatively, fine particles are introduced into the mold and the mold is agitated to dislodge the particles and the powder so that they can be poured out of the mold. Such technique tends also to remove the surface finish of the mold. Any of the particles which remain can be dissolved in a liquid and removed in the liquid from the mold. Further, the surface finish of the mold can be improved by casting a slip of fine particles onto the surface to form a generally level, and preferably non-conformal, coating on the surfaces.

    摘要翻译： 一种从使用层制造工艺（例如三维印刷工艺）制成的陶瓷模具（17）的内表面去除松散粉末（31）的技术。 模具（17）的内部可以充满沸腾的水（21），并且颗粒被夹带在由沸腾液体引起的流动中。 或者，将细颗粒（51）引入到模具（47）中并在模具（47）中搅动以去除颗粒（51）和粉末，使得它们可以从模具（47）中倒出。 这种技术也倾向于去除模具（47）的表面光洁度。 残留的任何颗粒（51）都可以溶解在液体中并从模具（47）中移出液体。 此外，模具47的表面光洁度可以通过在表面上铸造一层细颗粒来改善，从而在表面上形成大致水平的，优选非共形的涂层。

    HIGH SPEED, HIGH QUALITY THREE DIMENSIONAL PRINTING
    3.
    发明公开
    HIGH SPEED, HIGH QUALITY THREE DIMENSIONAL PRINTING 失效
    DREIDIMENSIONALES DRUCKEN MIT HOHER GESCHWINDIGKEIT UND HOHERQUALITÄT

    公开(公告)号：EP0686067A4

    公开(公告)日：1997-03-05

    申请号：EP94911410

    申请日：1994-02-16

    申请人： MASSACHUSETTS INST TECHNOLOGY

    发明人： SACHS EMMANUEL M ,  CURODEAU ALAIN ,  FAN TAILIN ,  BREDT JAMES F ,  CIMA MICHAEL ,  BRANCAZIO DAVID

    IPC分类号： B22F3/00 ,  B29C41/00 ,  B29C41/12 ,  B29C41/36 ,  B29C67/00 ,  B41J2/01 ,  B41J2/085 ,  B41J2/09 ,  B41J2/505 ,  B05C11/00 ,  B05C5/00 ,  B32B31/00 ,  G01D15/18

    CPC分类号： B41J2/505 ,  B22F3/004 ,  B22F3/008 ,  B22F2998/00 ,  B29C41/006 ,  B29C41/12 ,  B29C41/36 ,  B29C64/112 ,  B33Y30/00 ,  B41J2/01 ,  B41J2/085 ,  B41J2/09

    摘要： A system for producing three dimensional components by bonding together successive layers of a porous material with droplets of a binder material. A binder printhead has an array of nozzles which controllably supply jets of binder material droplets to the layers of porous material. The printhead is scanned in a raster scan fashion over each layer of porous material along a first scan axis in one direction to provide first fast scanning paths of droplets. The printhead is then moved laterally of such one direction and is then moved along the fast scan axis in the opposite direction to provide second fast scanning paths of droplets which are interlaced with the first scanning paths. The supply of the droplets to the porous material can be controlled so as to control the overlapping thereof to produce various desired surface and interior characteristics of the components.

    摘要翻译： 一种用于通过将多孔材料的连续层与粘合剂材料的液滴结合在一起来生产三维部件的系统。 粘合剂打印头具有可控制地将粘合剂材料液滴喷射到多孔材料层的喷嘴阵列。 打印头以光栅扫描的方式沿着沿一个方向的第一扫描轴的每层多孔材料扫描，以提供液滴的第一快速扫描路径。 然后打印头沿着这样的一个方向横向移动，然后沿着相反方向的快速扫描轴线移动，以提供与第一扫描路径隔行扫描的液滴的第二快速扫描路径。 可以控制向多孔材料的液滴的供应，以便控制其重叠以产生组件的各种期望的表面和内部特性。