Analyse der Druckpfadabhängigkeit in additiv gefertigten Komponenten aus kurzglasfaserverstärktem ABS mit verschiedenen FaservolumengehaltenMittwoch (05.07.2017) 18:09 - 18:12 Uhr Bestandteil von:
Additive manufacturing provides the ability to produce structural components featuring complex shapes in one step, compared to traditional methods of production. Therefore, additive manufacturing has recently gained attention for the direct production of parts. Using fiber reinforced filaments offers the opportunity to improve the mechanical properties of FDM printed components. In order to dimension them correctly, the mechanical properties of additive manufactured
samples based on glass fiber reinforced filaments were determined. Additionally, the influence of printing paths resulting in a distinct fiber orientation were taken into account.
Samples were produces by FDM-method (fused deposition modeling) from three materials: Bulk ABS and short glass fiber reinforced ABS featuring 5 wt% and 10 wt% fiber content. Additionally, samples were printed in two different raster orientations of [0°] and [90°]. Three different sample types were manufactured in order to perform tension, bending and impact tests. Prior to printing the samples, the slicer parameters were optimized for usage with the fiber reinforced filament. To determine the fiber orientation distribution (FOD) and fiber length-distribution (FLD), the samples were scanned using a μCT. Results show that fiber reinforced filaments used in this contribution can increase stiffness to 150 % of the bulk material in printing direction with a fiber weight content of 10 %. µCT investigations have shown that the orientation of fibers is primary aligned to the printing path.