About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2026 - In-Situ Characterization Techniques
|
| Presentation Title |
Influence of Extrusion Width on Interlayer Adhesion and Mechanical Properties of Polymer Composites Fabricated by FFF |
| Author(s) |
Sarah Catharina Vitali de Melo, Sergio Neves Monteiro, Lucio Fabio Cassiano Nascimento |
| On-Site Speaker (Planned) |
Sarah Catharina Vitali de Melo |
| Abstract Scope |
Additive manufacturing via Fused Filament Fabrication (FFF) strongly depends on the quality of interlayer adhesion to achieve good mechanical performance. This study analyzes the effect of line width on the tensile strength of polymer composites, focusing on the bonding between adjacent deposition paths. Samples were printed using fixed parameters, varying only the line width to isolate its influence. Narrower extrusions improved interfacial bonding due to a flatter contact interface, resulting in better mechanical performance. In contrast, excessive widths—relative to the layer height—produced wavy interfaces and irregular deposition, promoting stress concentrations and reduced strength. ANOVA analysis confirmed statistically significant differences between the groups. Scanning Electron Microscopy (SEM) images complemented the mechanical results, providing failure analysis. These findings indicate that line width has a significant influence on the final mechanical properties of FFF-printed components. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Composites, Polymers |