Roughness reduction and functional coating deposition on additive manufactured substrates with ultrasonic spray coating

wim deferme

by Wim Deferme, Hasselt University, Institute for Materials Research (IMO-IMOMEC)

Roughness of as-printed 3D parts is limiting the real breakthrough of Additive Manufacturing. Post processing technologies consist out of subtractive techniques such as grinding or sanding, or out of additive techniques such as coating.

In this presentation Ultrasonic Spray Coating as an additive post processing technologie is described to first of all reduce the roughness of Selective Laser Sintered substrates down to less than 2 micrometer and further, functional formulations consisting out of a polymer and nanoparticles is prepared to not only reduce the roughness but also add functionalities to the surface of the 3D substrate such as scratch resistance or superhydrophobicity.

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