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- Title
Experimentally Assessing the Wear Characteristics of 3D-Printed PLA and Tough PLA Materials Based on Fused Deposition Modeling.
- Authors
Tan, Engin
- Abstract
This study investigated the wear properties of two commonly utilized polymer materials, PLA (Poly Lactic Acid) and Tough PLA, in additive manufacturing applications. The samples were produced with a 100% infill rate on a 3D printer using Fused Deposition Modeling. Hardness measurements and abrasive wear tests were conducted to analyze the wear characteristics of the samples. The comparison involved parameters such as volume loss, coefficient of friction, and specific wear rate. Additionally, surface roughness measurements were performed to assess the quality of the worn surfaces. Wear maps were constructed to obtain information about the wear mechanisms, and scanning electron microscopy and energy-dispersive X-ray spectroscopy were used to describe the worn surfaces. The results demonstrated that Tough PLA exhibited superior wear resistance compared to PLA. The highest volume loss of 3.75 mm3 was observed in the PLA-5 m/s sample under a 15 N load, whereas the lowest of 0.55 mm3 was in the Tough PLA-1.5 m/s sample under a 5 N load. Depending on the applied load and sliding distances, fatigue, micro-fracture, and microcutting mechanisms were identified as contributing factors to the wear process. Furthermore, it was observed that higher applied loads resulted in a significant increase in surface roughness values.
- Subjects
THREE-dimensional printing; POLYMERS; HARDNESS testing; FUSED deposition modeling; SCANNING electron microscopy
- Publication
Gazi Journal of Engineering Sciences (GJES) / Gazi Mühendislik Bilimleri Dergisi, 2023, Vol 9, Issue 2, p213
- ISSN
2149-4916
- Publication type
Article
- DOI
10.30855/gmbd.0705065