ELECTROSTATIC POLYMER AEROSOL DEPOSITION AND FUSING OF SOLID PARTICLES FOR THREE-DIMENSIONAL PRINTING

    公开(公告)号:US20190061233A1

    公开(公告)日:2019-02-28

    申请号:US15683531

    申请日:2017-08-22

    Abstract: An additive manufacturing system has an aerosol generator to aerosolize a powder, a deposition surface, a surface charging element to apply a blanket charge to the deposition surface, a charging print head to selectively remove portions of the blanket charge from the deposition surface, and a transport system to transport the aerosol powder from the aerosol generator to the deposition surface, the transport system having an aerosol charging element to apply charge opposite of the blanket charge to the aerosol powder. An additive manufacturing process includes creating an aerosol from a powder at a spray generator, charging the aerosol to produce a charged aerosol having a first charge, forming a blanket charge on a deposition surface having a second charge of an opposite polarity from the first charge, selectively removing regions of the blanket charge, and transporting the charged aerosol to the charged regions to form structures on the charged regions from the charged aerosol.

    ELECTROSTATIC SPRAY DEVICE AND ELECTROSTATIC SPRAY METHOD

    公开(公告)号:US20180318857A1

    公开(公告)日:2018-11-08

    申请号:US15774796

    申请日:2016-11-09

    CPC classification number: B05B5/043 B05B5/08 B05D1/04

    Abstract: The electrostatic spray device includes a liquid sprayer including a nozzle that spouts a liquid; a voltage applicator that applies a voltage between the liquid sprayer and a heteropolar portion functioning as a pole opposite a pole of the liquid sprayer to generate an electrostatic force for causing the liquid to separate from a distal end of the nozzle in a charging state; and a stabilization electrode that maintains a stable spraying state of the liquid even when a pressure is applied to the liquid to supply the nozzle with the liquid. The stabilization electrode has an electric potential identical to an electric potential of the liquid sprayer, and is disposed near the nozzle such that a jet portion formed at a front of the nozzle by a linear extension of the liquid has a length longer than a length of the jet portion before the stabilization electrode is provided.

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