公开(公告)号：US5126529A

公开(公告)日：1992-06-30

申请号：US620745

申请日：1990-12-03

申请人： Lee E. Weiss ,  Fritz R. Prinz ,  E. Levent Gursoz

发明人： Lee E. Weiss ,  Fritz R. Prinz ,  E. Levent Gursoz

IPC分类号： C23C4/02 ,  B22F3/115 ,  B29C67/00 ,  C23C4/12 ,  C23C4/18

CPC分类号： B29C67/0092 ,  B22F3/115 ,  B29C67/0074 ,  G05B2219/49016 ,  G05B2219/49039 ,  Y10T29/49986

摘要： A method and apparatus for forming a three-dimensional object by thermal spraying utilizes a plurality of masks positioned and removed over a work surface in accordance with a predetermined sequence. The masks correspond to cross sections normal to a centerline through the workpiece. One set of masks defines all cross sections through the workpiece. A second set of masks contains at least one masks which corresponds to each mask of the first set. Masks from each set are alternatively placed above a work surface and sprayed with either a deposition material from which the workpiece will be made or a complementary material. In this manner, layers of material form a block of deposition material and complementary material. Then, the complementary material which serves as a support structure during forming is removed. Preferably, the complementary material has a lower melting temperature than the deposition material and is removed by heating the block. Alternatively, one could mask only for the deposition material and remove complementary material overlying the deposition material after each spraying of complementary material.

摘要翻译： 通过热喷涂形成三维物体的方法和装置利用根据预定顺序在工作表面上定位和移除的多个掩模。 掩模对应于垂直于通过工件的中心线的横截面。 一组掩模定义了穿过工件的所有横截面。 第二组掩模包含至少一个对应于第一组的每个掩模的掩模。 每个组的面罩可替换地放置在工作表面上方，并喷涂有将由其制造工件的沉积材料或互补材料。 以这种方式，材料层形成沉积材料块和互补材料。 然后，去除在成形期间用作支撑结构的互补材料。 优选地，互补材料具有比沉积材料更低的熔化温度，并且通过加热块来除去。 或者，可以在每次喷涂互补材料之后，仅掩盖沉积材料并除去覆盖沉积材料的互补材料。