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INCREASED INTERLAYER ADHESION OF THREE-DIMENSIONAL PRINTED ARTICLES

  • US 20160325487A1
  • Filed: 02/24/2014
  • Published: 11/10/2016
  • Est. Priority Date: 02/24/2014
  • Status: Abandoned Application
First Claim
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1. A method to increase interlayer adhesion of a three-dimensional (3D) printed article, the method comprising:

  • positioning an extrusion nozzle of a 3D printer along a path;

    coupling a microplasma source to the extrusion nozzle such that the microplasma source is positioned along the path of the extrusion nozzle, wherein the microplasma source is positioned to either precede or follow the extrusion nozzle along the path;

    depositing a polymer layer from the extrusion nozzle along the path onto a surface of a substrate to form the 3D printed article; and

    treating the surface of the substrate or a surface of the deposited polymer layer with plasma from the microplasma source by applying a voltage between a ground reference and at least one of two electrodes positioned within the microplasma source to cause a plasma drop from the microplasma source onto the surface of the substrate or the surface of the deposited polymer layer.

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