Effect of fabrication parameters on surface roughness of FDM parts

• Published in: International journal of precision engineering and manufacturing Vol. 19; no. 1; pp. 137 - 142
• Main Authors: Kim, Min Kyung, Lee, In Hwan, Kim, Ho-Chan
• Format: Journal Article
• Language: English
• Published: Seoul Korean Society for Precision Engineering 01.01.2018; Springer Nature B.V
• Subjects: Engineering; Extrusion; Fused deposition modeling; Industrial and Production Engineering; Inflow; Lithography; Materials Science; Mechanical properties; Rapid prototyping; Regular Paper; Substrates; Surface roughness; 3D Printing; Extrusion; Surface roughness; FDM; 3-dimensional circuit device
• ISSN: 2234-7593; 2005-4602
• DOI: 10.1007/s12541-018-0016-0

The FDM (Fused Deposition Modeling) technology is widely used due to its low process cost and good mechanical properties. However, fabricated parts have relatively inferior surface roughness compared to liquid material type process such as SL (Stereolithography). In this research, effects of fabrication parameters such as the gap between nozzle and substrate, inflow speed of filament material and heating moving speed of nozzle on the FDM-fabricated line figuration was investigated experimentally. The extruded line figurations such as width, thickness and cross-sectional shapes were examined. An empirical formula of the line fabrication for fabrication parameters was made based on the experimental results. Moreover, effect of line fabrication distance on the surface roughness was studied.