Selective laser sintering with assisted powder handling
    9.
    发明授权
    Selective laser sintering with assisted powder handling 失效
    选择性激光烧结辅助粉末处理

    公开(公告)号:US5053090A

    公开(公告)日:1991-10-01

    申请号:US547857

    申请日:1990-07-02

    Abstract: A method and apparatus for selectively sintering a layer of powder to produce a part comprising a plurality of sintered layers. The apparatus includes a computer controlling a laser to direct the laser energy onto the powder to produce a sintered mass. The computer either determines or is programmed with the boundaries of the desired cross-sectional regions of the part. For each cross-section, the aim of the laser beam is scanned over a layer of powder and the beam is switched on to sinter only the powder within the boundaries of the cross-section. Powder is applied and successive layers sintered until a completed part is formed. Preferably, the powder is deposited to the target area of the laser and attains high bulk density during sintering.

    Abstract translation: 一种用于选择性地烧结一层粉末以产生包括多个烧结层的部分的方法和装置。 该装置包括控制激光以将激光能量引导到粉末上以产生烧结块的计算机。 计算机确定或编程了该部分所需横截面区域的边界。 对于每个横截面,激光束的目的是在一层粉末上扫描,并且光束被接通以仅在横截面的边界内烧结粉末。 施加粉末并连续层烧结直到形成完整的部分。 优选地,粉末沉积到激光的靶区域,并且在烧结期间获得高堆积密度。

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