Powder delivery for additive manufacturing

    公开(公告)号:US10322574B2

    公开(公告)日:2019-06-18

    申请号:US15266420

    申请日:2016-09-15

    Abstract: An apparatus includes a platen and a dispensing system overlying the platen. The dispensing system includes a powder source. The dispensing system further includes a powder conveyor extending over the top surface of the platen, rings arranged coaxially along a longitudinal axis of the powder conveyor, and a cap plate extending along a length of the tube. The powder conveyor is configured to receive powder from the powder source. The powder conveyor is configured to move the powder. The rings form a tube surrounding the powder conveyor to contain the powder. Each concentric ring includes a ring opening. Each ring is configured to be independently rotatable. The cap plate includes a cap plate opening. The powder is dispensed from the tube through the ring opening and the cap plate opening when the ring opening and the cap plate opening are aligned.

    FABRICATION OF BASE PLATE, FABRICATION OF ENCLOSURE, AND FABRICATION OF SUPPORT POSTS IN ADDITIVE MANUFACTURING
    26.
    发明申请
    FABRICATION OF BASE PLATE, FABRICATION OF ENCLOSURE, AND FABRICATION OF SUPPORT POSTS IN ADDITIVE MANUFACTURING 审中-公开
    基板的制造,外壳的制造以及辅助制造中的支撑位的制造

    公开(公告)号:US20170072467A1

    公开(公告)日:2017-03-16

    申请号:US15268176

    申请日:2016-09-16

    Abstract: An apparatus for forming an object includes a platform and a dispensing system overlying the platform to dispense successive layers of powder. The successive layers include support layers and object layers on the support layers. The apparatus further includes an energy source to fuse the powder. A controller is configured to cause the energy source to fuse a support region of each of the support layers to form a part support base. The controller is further configured to cause the energy source to fuse an enclosure region of each of the object layers to form an enclosure dividing each of the object layers into an inner region and outer region. The controller is also configured to cause the energy source to fuse an object portion of the inner region of each of the object layers. A parallel projection of the object defines a part area contained within the inner region.

    Abstract translation: 用于形成物体的装置包括平台和覆盖平台的分配系统以分配连续的粉末层。 连续的层包括支撑层和支撑层上的物体层。 该装置还包括熔化粉末的能源。 控制器被配置为使能源熔化每个支撑层的支撑区域以形成部件支撑基座。 控制器还被配置成使能源熔化每个物体层的外壳区域,以形成将每个物体层分成内部区域和外部区域的外壳。 控制器还被配置为使能量源融合每个对象层的内部区域的对象部分。 物体的平行投影限定了包含在内部区域内的部分区域。

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