ÖĞÜTÜLMÜŞ KARBON ELYAF TAKVİYELİ SLA BASKILI FOTOPOLİMER KOMPOZİTLERİN ÇEKME VE DARBE DAVRANIŞININ DENEYSEL İNCELENMESİ

Öz

Eklemeli imalat teknolojileri, karmaşık geometrilerin düşük malzeme kaybı ve üretim maliyeti ile üretilmesine olanak sağlamaktadır. Bu teknolojiler arasında stereolitografi (SLA), yüksek baskı çözünürlüğü ve iyi yüzey kalitesi sayesinde önemli bir ilgi görmektedir. Bununla birlikte, SLA yöntemi ile üretilen fotopolimer parçaların mekanik performansı birçok mühendislik uygulaması için sınırlı kalabilmektedir. Bu çalışmada, öğütülmüş karbon elyaf partikülleri ile takviye edilmiş SLA baskılı fotopolimer kompozitlerin çekme ve Charpy darbe davranışı deneysel olarak incelenmiştir. Numuneler beş farklı doluluk oranında (%20, %40, %60, %80 ve %100) ve beş farklı takviye oranında (0, %0.4, %0.8, %1.2 ve %1.6 ağırlıkça) üretilmiştir. Çekme testleri ASTM D638 Tip V standardına göre, Charpy darbe testleri ise ASTM D256 standardına uygun olarak gerçekleştirilmiştir. Deney sonuçları doluluk oranının artmasının hem çekme dayanımını hem de darbe tokluğunu artırdığını, buna karşılık öğütülmüş karbon elyaf ilavesinin mekanik özellikleri genel olarak azalttığını göstermiştir. En yüksek mekanik özellikler %100 doluluk oranına sahip ve takviye içermeyen numunelerde elde edilmiştir. Elde edilen bulgular, doluluk oranı ve partikül takviyesinin birlikte etkisini ortaya koymakta ve SLA ile üretilen fotopolimer kompozitlerin mekanik performansının iyileştirilmesine yönelik önemli bilgiler sunmaktadır.

Anahtar Kelimeler

• Stereolitografi (SLA)
• Fotopolimer kompozitler
• Öğütülmüş karbon elyaf
• Doluluk oranı
• Charpy darbe testi.

Destekleyen Kurum

TÜBİTAK

Etik Beyan

Yazarlar tarafından herhangi bir çıkar çatışması beyan edilmemiştir.

Teşekkür

Bu çalışma, “Öğütülmüş Karbon Elyaf Takviyeli Reçine Kullanılarak Farklı Dolgu Oranlarıyla Üretilen SLA Baskılı Numunelerin Mekanik Özelliklerinin İncelenmesi” başlıklı proje kapsamında TÜBİTAK 2209-A Üniversite Öğrenci Araştırma Projeleri Destek Programı tarafından desteklenmiştir. Yazarlar ayrıca, deneysel çalışmalar sırasında değerli destekleri için Çukurova Üniversitesi Makine Mühendisliği Bölümü Mekanik Laboratuvarı ve Otomotiv Mühendisliği Laboratuvarı'na teşekkür ederler.

EXPERIMENTAL INVESTIGATION OF TENSILE AND IMPACT BEHAVIOR OF SLA-PRINTED PHOTOPOLYMER COMPOSITES REINFORCED WITH MILLED CARBON FIBER

Öz

Additive manufacturing technologies enable the production of complex geometries with low material waste and manufacturing cost. Among these technologies, stereolithography (SLA) has attracted considerable attention due to its high printing resolution and surface quality. However, the mechanical performance of photopolymer parts produced by SLA is often limited for structural applications. In this study, the tensile and Charpy impact behavior of SLA-printed photopolymer composites reinforced with milled carbon fiber particles was experimentally investigated. Specimens were produced at five different infill ratios (20%, 40%, 60%, 80%, and 100%) and five different reinforcement contents (0, 0.4, 0.8, 1.2, and 1.6 wt.%). Tensile tests were conducted according to ASTM D638 Type V standard, while Charpy impact tests followed ASTM D256. The results showed that increasing the infill ratio significantly improved both tensile strength and impact toughness, while the addition of milled carbon fiber particles generally reduced the mechanical performance of the printed composites. The highest mechanical properties were obtained in specimens produced with 100% infill and without reinforcement. These findings provide new insight into the combined effects of infill ratio and particle reinforcement and may serve as a practical guideline for improving the mechanical performance of SLA-printed photopolymer composites.

Anahtar Kelimeler

• Stereolithography (SLA)
• Photopolymer composites
• Milled carbon fiber
• Infill ratio
• Charpy impact test.

Destekleyen Kurum

TÜBİTAK

Etik Beyan

No conflict of interest was declared by the authors.

Teşekkür

This study was supported by the TÜBİTAK 2209-A University Students Research Projects Support Programme under the project titled “Investigation of the Mechanical Properties of SLA-Printed Specimens Produced with Different Infill Ratios Using Milled Carbon Fiber Reinforced Resin.” The authors would also like to thank the Mechanical Laboratory of the Department of Mechanical Engineering and the Automotive Engineering Laboratory of Çukurova University for their valuable support during the experimental studies.

Kaynakça

1. References
2. Abdulhameed, O., Al-Ahmari, A., Ameen, W., Mian, S. H., 2019. Additive manufacturing: Challenges, trends, and applications. Advances in Mechanical Engineering, 11(2).
3. Aktitiz, İ., Aydın, K., Topcu, A., 2021. Characterization of TiO₂ nanoparticle–reinforced polymer nanocomposite materials printed by stereolithography method. Journal of Materials Engineering and Performance, 30(7), 4975–4980.
4. Chu, P. F., Iwasawa, S., Schell, P. L., Lin, C. Y., 2021. Carbon fiber versus glass fiber reinforcements: A novel, true comparison in thermoplastics. Polymer Composites, 42(11), 6173–6181.
5. Dall’Argine, C., Hochwallner, A., Klikovits, N., Liska, R., Stampf, J., Sangermano, M., 2020. Hot-lithography SLA-3D printing of epoxy resin. Macromolecular Materials and Engineering, 305(10).
6. Dickson, A. N., Barry, J. N., McDonnell, K. A., Dowling, D. P., 2017. Fabrication of continuous carbon, glass and Kevlar fibre reinforced polymer composites using additive manufacturing. Additive Manufacturing, 16, 146–152.
7. Feroz Ali, L., Raghul, R., Yogesh Muthu Ram, M., Harshavardhan Reddy, V., Shakil Kanna, N., 2022. Evaluation of the polyamide’s mechanical properties for varying infill percentage in FDM process. Materials Today: Proceedings, 68, 2509–2514.
8. Gibson, I., Rosen, D., Stucker, B., 2015. Additive Manufacturing Technologies. Springer New York. Hetrick, D. R., Sanei, S. H. R., Ashour, O., Bakis, C. E., 2021. Charpy impact energy absorption of 3D printed continuous Kevlar reinforced composites. Journal of Composite Materials, 55(12), 1705–1713.

9. Lin, D., Jin, S., Zhang, F., Wang, C., Wang, Y., Zhou, C., Cheng, G. J., 2015. 3D stereolithography printing of graphene oxide reinforced complex architectures. Nanotechnology, 26(43), 434003.
10. Mamo, H. B., Adamiak, M., Kunwar, A., 2023. 3D printed biomedical devices and their applications: A review on state-of-the-art technologies, existing challenges, and future perspectives. Journal of the Mechanical Behavior of Biomedical Materials, 143, 105930.
11. Marșavina, L., Vălean, C., Mărghitaș, M., Linul, E., Razavi, N., Berto, F., Brighenti, R., 2022. Effect of the manufacturing parameters on the tensile and fracture properties of FDM 3D-printed PLA specimens. Engineering Fracture Mechanics, 274, 108766.
12. Martínez Raya, A., Aranda-Ruiz, J., Sal-Anglada, G., Jaureguizahar, S. M., Braun, M., 2024. Effect of printing orientation on the mechanical properties of low-force stereolithography-manufactured durable resin. Applied Sciences, 14(20), 9529.
13. Miedzińska, D., Gieleta, R., Małek, E., 2020. Experimental study of strength properties of SLA resins under low and high strain rates. Mechanics of Materials, 141, 103245.
14. Mishra, P. K., Senthil, P., Adarsh, S., Anoop, M. S., 2021. An investigation to study the combined effect of different infill pattern and infill density on the impact strength of 3D printed polylactic acid parts. Composites Communications, 24, 100605.
15. Mohseni, Y., Mohseni, M., Suresh, S., Riotto, M., Jaggessar, A., Little, J. P., Wille, M. L., Yarlagadda, P. K., 2023. Investigating impacts of FDM printing parameters and geometrical features on void formation in 3D printed automotive components. Materials Today: Proceedings.
16. Nowacki, B., Kowol, P., Kozioł, M., Olesik, P., Wieczorek, J., Wacławiak, K., 2021. Effect of Post-Process Curing and Washing Time on Mechanical Properties of mSLA Printouts. Materials, 14, 4856.
17. Rajak, D. K., Wagh, P. H., Linul, E., 2021. Manufacturing technologies of carbon/glass fiber-reinforced polymer composites and their properties: A review. Polymers, 13(21), 3721.
18. Saha, R. K., Ray, N. C., Manikuzzaman, M., Abu Rasel Rayhan, M., Easin Mollah, M., Mustafizur Rahman, M., 2025. Mechanical and physical characterization of SLA 3D-printed water-washable composites for high-precision jewelry applications. Results in Materials, 28, 100845.
19. Srinivasan, R., Ruban, W., Deepanraj, A., Bhuvanesh, R., Bhuvanesh, T., 2020. Effect on infill density on mechanical properties of PETG part fabricated by fused deposition modelling. Materials Today: Proceedings, 27, 1838–1842.
20. Tanveer, Md. Q., Haleem, A., Suhaib, M., 2019. Effect of variable infill density on mechanical behaviour of 3-D printed PLA specimen: an experimental investigation. SN Applied Sciences, 1(12), 1701.
21. Tekinalp, H. L., Kunc, V., Velez-Garcia, G. M., Duty, C. E., Love, L. J., Naskar, A. K., Blue, C. A., Ozcan, S., 2014. Highly oriented carbon fiber–polymer composites via additive manufacturing. Composites Science and Technology, 105, 144–150.
22. Wang, X., Jiang, M., Zhou, Z., Gou, J., Hui, D., 2017. 3D printing of polymer matrix composites: A review and prospective. Composites Part B: Engineering, 110, 442–458.
23. Weng, Z., Zhou, Y., Lin, W., Senthil, T., Wu, L., 2016. Structure-property relationship of nano enhanced stereolithography resin for desktop SLA 3D printer. Composites Part A: Applied Science and Manufacturing, 88, 234–242.
24. Xiao, R., Ding, M., Wang, Y., Gao, L., Fan, R., Lu, Y., 2021. Stereolithography (SLA) 3D printing of carbon fiber-graphene oxide (CF-GO) reinforced polymer lattices. Nanotechnology, 32(23), 235702.
25. Yosef, D. A., Enab, T. A., Eldesouky, I., 2026. Tribological and hardness characteristics of resin materials in masked stereolithography: impact of washing solution and curing time. Progress in Additive Manufacturing, 11, 83–94.
26. Zhang, X., Xu, Y., Li, L., Yan, B., Bao, J., Zhang, A., 2019. Acrylate-based photosensitive resin for stereolithographic three-dimensional printing. Journal of Applied Polymer Science, 136(21).