Berlin 2018 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 27: Poster Session I

MM 27.32: Poster

Dienstag, 13. März 2018, 18:30–19:45, Poster E

Mechanical properties of 3D printed polymer-metal hybrid materials using FDM technology — Susanna Fafenrot, Nils Grimmelsmann, Martin Wortmann, and •Andrea Ehrmann — Bielefeld University of Applied Sciences, Faculty of Engineering and Mathematics, 33619 Bielefeld, Germany

Fused deposition modeling (FDM) belongs to the 3D printing technologies. In FDM printing, a polymer is molten in the printer nozzle and placed line by line on the printing bed or the previous layer, respectively. Besides pure polymers, hybrid materials combining polymers with functional materials are also commercially available.

In a recent project, the mechanical properties of objects printed with metal-polymer blends were compared to pure poly(lactic acid) (PLA) printed elements [1]. Tensile and bending tests revealed that hybrid materials had significantly reduced mechanical properties. Unexpectedly, the tensile strengths of the 3D-printed objects were similar to those of the original filaments, indicating sufficient printing quality.

Our investigations show that while FDM printing allows for producing objects with mechanical properties similar to the original materials, metal-polymer blends cannot be used for the rapid manufacturing of objects necessitating mechanical strength.

[1] S. Fafenrot, N. Grimmelsmann, M. Wortmann and A. Ehrmann: Three-Dimensional (3D) Printing of Polymer-Metal Hybrid Materials by Fused Deposition Modeling, Materials 10, 1199 (2017)