APPARATUS AND METHOD FOR PRINTING LARGE THERMOPLASTIC PARTS DURING ADDITIVE MANUFACTURING

    公开(公告)号:WO2019055107A1

    公开(公告)日:2019-03-21

    申请号:PCT/US2018/041208

    申请日:2018-07-09

    Abstract: Embodiments of the present disclosure are drawn to additive manufacturing apparatus and methods. An exemplary additive manufacturing system may include an extruder (61), the extruder having an opening (40) dimensioned to receive a material. The apparatus may also include an extruder output in fluid communication with the extruder, wherein the extruder output extends away from the extruder along a longitudinal axis. One or more heaters (41) positioned along at least a portion of the extruder output may also be included, and, as the material passes through the extruder output, the one or more heaters may at least partially melt the material. The system may also include a gear pump (74) in fluid communication with the extruder output for receiving the at least partially melted material, and a nozzle (51) in fluid communication with the gear pump for depositing the at least partially melted material.

    PRINT HEAD FOR ADDITIVE MANUFACTURING
    6.
    发明申请

    公开(公告)号:WO2020142127A1

    公开(公告)日:2020-07-09

    申请号:PCT/US2019/055591

    申请日:2019-10-10

    Abstract: An additive manufacturing system may include a carrier, a set of rails coupled to the carrier, and a transition housing movably attached to the set of rails. The additive manufacturing system may include an extruder having an extruder barrel coupled to the transition housing, and a melt pump fixedly attached to the carrier. The melt pump may be in fluid communication with the extruder barrel. Additionally, the additive manufacturing system may include a nozzle in fluid communication with the melt pump, and a roller rotatable about the nozzle.

    APPARATUS AND METHODS FOR COMPRESSING MATERIAL DURING ADDITIVE MANUFACTURING

    公开(公告)号:WO2019055108A1

    公开(公告)日:2019-03-21

    申请号:PCT/US2018/041212

    申请日:2018-07-09

    Abstract: Additive manufacturing system, which may include a nozzle (51) having an inlet for receiving a flowable material (53) and an outlet for depositing the flowable material (53). An applicator head (43) may surround at least a portion of a proximal region of the nozzle (51). The applicator head (43) may include a housing (46), a cooling inlet for receiving a coolant into the housing (46), a cooling outlet configured to allow the coolant to exit the housing (46), and an air inlet. A roller (59) may be mounted on the applicator head (43) to one side of the outlet of the nozzle (51). The roller (59) may include an air outlet, wherein a flow path connects the air inlet and the air outlet so that air enters the air inlet and exits the air outlet. The roller (59) may also include a plurality of holes (70) located on an external surface of the roller (59).

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