Influence of Part Orientation on the Surface Roughness in the Process of Fused Deposition Modeling

Abstract:

The article focused on the influence of part orientation on the surface roughness of cuboid parts during the process of fabricating by FDM technology. The components, in this case, is simple cuboid part with the dimensions 15 mm x 15mm x 30 mm. A geometrical model is defined that considers the shape of the material filaments after deposition, to define a theoretical roughness profile, for a certain print orientation angle. Five different print orientations in the X-axis of the cuboid part were set: 0°, 30°, 45°, 60°, and 90°. According to previous research in the field of FDM technology by the author, the internal structure (infill) was set at the value of 70%. The method of 3D printing was the Fused Deposition Modeling (FDM) and the material used in this research was thermoplastic ABS (Acrylonitrile butadiene styrene). For each setting, there were five specimens (twenty five prints in total). Prints were fabricated on a Zortrax M200 3D printer. After the 3D printing, the surface “A” was investigated by portable surface roughness tester Mitutoyo SJ-210. Surface roughness in the article is shown in the form of graphs (Fig.7). Results show increase in part roughness with increasing degree of part orientation. When the direction of applied layers on the measured surface was horizontal, significant improvement in surface roughness was observed. Findings in this paper can be taken into consideration when designing parts, as they can contribute in achieving lower surface roughness values.

• Periodical: Key Engineering Materials (Volume 896)
• Pages: 29-37
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.896.29
• Online since: August 2021
• Authors: Ján Milde*, František Jurina, Jozef Peterka, Patrik Dobrovszký, Jakub Hrbál, Jozef Martinovič
• Keywords: 3D Printing, ABS, Cuboid Part, FDM, Part Orientation, Surface Roughness

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