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    • 5. 发明授权
    • Layered-modeling method for manufacturing three-dimensional object
    • 用于制造三维物体的分层建模方法
    • US09005513B2
    • 2015-04-14
    • US13319622
    • 2010-05-14
    • Satoshi AbeNorio YoshidaYoshikazu HigashiIsao Fuwa
    • Satoshi AbeNorio YoshidaYoshikazu HigashiIsao Fuwa
    • B29C35/08B29C67/00B22F3/105
    • B29C67/0077B22F3/1055B22F2003/1056B22F2999/00B23P15/00B29C64/153B29C64/20B29C67/0085B33Y30/00B33Y40/00B33Y50/02Y02P10/295B22F2201/00
    • An object of the present invention is to easily eliminate fumes inside a chamber, so as to improve a positional accuracy of irradiation with a light beam and a machining accuracy in a method for manufacturing a three-dimensional shaped object. A stacked-layers forming device 1 includes a powder layer forming unit 3, a light beam irradiating unit 4, a base 22 which is fixed and on which a powder layer 32 is formed, a lifting/lowering frame 34 which surrounds the circumference of the base 22 and is freely capable of being lifted and lowered, a cover frame 36 which has a window 36a allowing transmission of light beam in its top surface, and whose bottom surface is opened, and which is disposed on the lifting/lowering frame 34 to form a chamber C, and a gas tank 71 for supplying an ambient gas. The lifting/lowering frame 34 is lowered to reduce the volume of the chamber C, so as to discharge fumes generated inside the cover frame 36, which performs replacement with the ambient gas. Since the volume of the chamber C is reduced, it is possible to easily eliminate the fumes, which makes it possible to improve the positional accuracy of irradiation with the light beam L, and the machining accuracy.
    • 本发明的目的是容易地消除室内的烟雾,从而提高三维成形体的制造方法中的光束照射的位置精度和加工精度。 堆叠层形成装置1包括粉末层形成单元3,光束照射单元4,固定有基底22并且形成有粉末层32的升降框架34,其围绕 基座22并且能够自由地升降;盖框架36,其具有允许光束在其顶表面中传播并且其底表面打开的窗口36a,并且设置在升降框架34上 形成室C和用于供应环境气体的气罐71。 升降架34被降低以减小腔室C的体积,从而排出在与外界气体进行更换的盖框架36内产生的烟雾。 由于室C的体积减小,因此可以容易地消除烟雾,从而可以提高光束L的照射位置精度和加工精度。