Abstract
Parts produced by FDM (fused deposition modelling) technique, where polymer filaments are used, are anisotropic and their properties vary depending on the printing parameters, one of which is raster angle. In this study, the effects of this parameter on the tensile and the surface roughness properties were investigated. It was determined that the ultimate tensile strength (UTS) decreased with increasing raster angle; hence, 0° raster angle where tensile loading direction is parallel to the raster yielded the highest strength. Besides ±45° raster angle resulted the most ductile behaviour with the highest fracture strains. Fracture occurred due to raster failure for 0° raster angle but for 90° raster angle, it was due to the failure of the interlayer raster bonds. In the case of ±45°, both of the failure mechanisms were effective. Surface roughness values increased up to 7 µm when measurement was perpendicular to the raster and dropped below 1 µm when it was parallel to the raster.
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Abbreviations
- FDM:
-
Fused deposition modelling
- UTS:
-
Ultimate tensile strength
- ABS:
-
Acrylonitrile butadiene styrene
- PLA:
-
Polylactic acid
- PC:
-
Polycarbonate
- PA:
-
Poliamide
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Acknowledgments
The author acknowledges Volkan M. Küçükakarsu and İbrahim E. Tekin for producing the tensile test samples and Tübitak (The Scientific and Technological Research Council of Turkey) 2209-A grant for financial support.
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Betül Gülçimen Çakan, born in 1983, received her B.Sc., M.Sc. and Ph.D. degrees in Mechanical Engineering from Bursa Uludağ Univesity in Bursa, Turkey, in 2005, 2008 and 2013, respectively. She worked as a visiting scientist at Institute for Energy at the Joint Research Centre in the Netherlands in 2010 and 2012. Her research areas are mechanics of materials, materials testing, fracture mechanics, creep mechanics, biomechanics and computational modeling of material behaviors. Currently, she is an Assistant Proffessor in the Mechanical Engineering Department at Bursa Uludağ University, Turkey.
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Çakan, B.G. Effects of raster angle on tensile and surface roughness properties of various FDM filaments. J Mech Sci Technol 35, 3347–3353 (2021). https://doi.org/10.1007/s12206-021-0708-8
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DOI: https://doi.org/10.1007/s12206-021-0708-8