Method and apparatus for combining particulate material
    3.
    发明授权
    Method and apparatus for combining particulate material 有权
    用于组合颗粒材料的方法和装置

    公开(公告)号:US08535036B2

    公开(公告)日:2013-09-17

    申请号:US13007509

    申请日:2011-01-14

    IPC分类号: B28B17/00

    摘要: A method of selectively combining particulate material, for example plastics material by sintering, comprises providing a layer of particulate material, providing radiation, for example using a radiation source over the layer, and varying the absorption of the provided radiation across a selected surface portion of the layer to combine a portion of the material of the layer. The method may comprise varying radiation absorption by varying the intensity of the radiation incident on the surface portion of the layer, or alternatively may comprise varying the radiation absorptive properties of the particulate material over the selected surface portion of the layer, for example by printing a radiation absorbent material onto the surface portion.

    摘要翻译: 选择性地组合颗粒材料(例如通过烧结的塑性材料)的方法包括提供颗粒材料层,提供辐射,例如使用该层上的辐射源,以及改变所提供的辐射在所选择的表面部分 该层合并该层的材料的一部分。 该方法可以包括通过改变入射在层的表面部分上的辐射的强度来改变辐射吸收,或者可以包括改变颗粒材料在层的选定表面部分上的辐射吸收性质,例如通过印刷 辐射吸收材料到表面部分上。

    Molded and laminated curved surface composites
    7.
    发明授权
    Molded and laminated curved surface composites 失效
    成型和层压曲面复合材料

    公开(公告)号:US06534165B1

    公开(公告)日:2003-03-18

    申请号:US09520674

    申请日:2000-03-07

    申请人: Stewart M. Holmes

    发明人: Stewart M. Holmes

    IPC分类号: B32B326

    摘要: A molding press for simultaneously molding a product and laminating a pattern layer to the surface of the molded product comprising a bottom mold plate, a top mold plate, a mold ring element surrounding the mold plates and moveable independently of the top and bottom mold plates, an upper surface on said mold ring for engaging a peripheral edge of the top mold plate, and a flat groove in said mold ring upper surface which is slightly deeper than the thickness of a pattern layer to be laminated to the top surface of the final molded product.

    摘要翻译: 一种用于同时模制产品并将图案层层压到模制产品表面的模压机,包括底模板,顶模板,围绕模板的模环元件,并可独立于顶模和底模板移动, 所述模具环上的上表面用于接合上模板的周边边缘,以及在所述模具环上表面中的平坦凹槽,其比要层压到最终模制件的顶表面的图案层的厚度稍微更深 产品。

    Method and apparatus for making a three-dimensional object by
stereolithography
    9.
    发明授权
    Method and apparatus for making a three-dimensional object by stereolithography 失效
    通过立体光刻制造三维物体的方法和装置

    公开(公告)号:US5965079A

    公开(公告)日:1999-10-12

    申请号:US766956

    申请日:1996-12-16

    申请人: Chris R. Manners

    发明人: Chris R. Manners

    摘要: An improved method for stereolithographically making an object by alternating the order in which similar sets of vectors are exposed over two or more layers. In another method, a pattern of tightly packed hexagonal tiles are drawn. Each tile is isolated from its neighboring tiles by specifying breaks of unexposed material between the tiles. Using an interrupted scan method, vectors are drawn with periodic breaks along their lengths. In another method, modulator and scanning techniques are used to reduce exposure problems associated with the acceleration and deceleration of the scanning system when jumping between vectors or changing scanning directions. In another method, a capability for automatically inserting vents an drains into a three-dimensional object representation is provided.

    摘要翻译: 通过交替在两个或多个层上暴露相似的矢量集合的顺序来立体定向制作物体的改进方法。 在另一种方法中,绘制紧密包装的六边形瓦片的图案。 通过指定瓷砖之间未曝光材料的断裂,每个瓷砖与其相邻的瓷砖隔离。 使用中断的扫描方法,沿其长度绘制周期性断点的向量。 在另一种方法中,调制器和扫描技术用于在向量之间跳跃或改变扫描方向时减少与扫描系统的加速和减速有关的暴露问题。 在另一种方法中,提供了将排水口自动插入到三维物体表示中的能力。