公开(公告)号：US6109332A

公开(公告)日：2000-08-29

申请号：US161873

申请日：1998-09-28

申请人： Emmanuel M. Sachs ,  Michael J. Cima ,  James F. Bredt ,  Satbir Khanuja

发明人： Emmanuel M. Sachs ,  Michael J. Cima ,  James F. Bredt ,  Satbir Khanuja

IPC分类号： B08B3/10 ,  B08B3/12 ,  B08B5/04 ,  B08B7/00 ,  B08B9/00 ,  B22C9/06 ,  B22C9/18 ,  B22D17/22 ,  B22D25/06 ,  B22F3/00 ,  B22F5/00 ,  B24B1/04 ,  B29C33/04 ,  B29C33/38 ,  B29C33/56 ,  B29C67/00 ,  B22C9/12 ,  B22C1/02

CPC分类号： B22C9/065 ,  B08B3/10 ,  B08B3/12 ,  B08B5/04 ,  B08B7/00 ,  B08B9/00 ,  B22C9/18 ,  B22D17/22 ,  B22D17/2218 ,  B22D25/06 ,  B22F3/008 ,  B22F5/007 ,  B24B1/04 ,  B29C33/04 ,  B29C33/3828 ,  B29C67/0081 ,  B29C33/56 ,  Y02P10/292

摘要： A technique for smoothing and otherwise changing the surfaces of porous bodies, such as ceramic molds, made using layer manufacturing processes, such as three dimensional printing processes. The surface finish of the mold can be smoothed by casting a slip of fine particles onto the surface to form a generally level, and preferably non-conformal, coating on the surfaces. In general, the fine particles of the slip are caused to be filtered out from the liquid, so that the fine particles come to rest at or near the surface of the body formed. They are typically, preferentially drawn toward concave regions of the surface, as compared to convex regions, thereby forming a non-conformal coating. Furthermore, other surface properties can be changed by tailoring the slip to produce those properties. The coating can be applied to external surfaces, and internal surfaces, such as would become the surface against which a molded part would be formed.

摘要翻译： 用于平滑和否则地改变使用诸如三维印刷工艺的层制造工艺制成的多孔体如陶瓷模具的表面的技术。 可以通过将表面上的微细颗粒滑移到表面上以形成表面上大致水平的，优选非保形的涂层来使模具的表面光洁度平滑。 通常，使滑动剂的细颗粒从液体中过滤掉，使得细颗粒在形成的本体的表面处或表面附近静止。 与凸形区域相比，它们通常优选地被吸引到表面的凹入区域，由此形成非保形涂层。 此外，可以通过调整滑移来改变其他表面特性以产生这些特性。 涂层可以施加到外表面，并且内表面，例如将成为将形成模制部件的表面。