Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+

Enes Aslan

doi:10.29130/dubited.1757310

TR EN

3B Baskılı PLA+ Malzemesinin Sertlik ve Darbe Dayanımı Üzerine Dondurma Süresinin Etkisi

Abstract

Bu ön çalışmada, FDM tekniği kullanılarak %50 ve %100 doluluk oranlarında ve bal peteği deseninde üretilen 3B baskılı PLA+ numunelerin dondurulma süresinin darbe dayanım performansı üzerindeki etkisi araştırılmıştır. Numuneler -80 °C'de farklı sürelerle (72 saate kadar) muhafaza edilmiş ve boyutsal değişimleri, sertlikleri ile darbe dayanımları incelenmiştir. Bulgular, düşük sıcaklıklara uzun süre maruz kalan numunelerde çapta hafif bir azalma olduğunu ve bunun malzeme büzülmesinden kaynaklandığını göstermektedir. Buna karşılık, sertlik değerleri dondurulma süresiyle birlikte artmış; en yüksek Shore D sertliği 85.78 ile tam dolu numunelerde elde edilmiştir. Darbe testleri, %100 doluluk oranına sahip numunelerin %50 doluluk oranlılara göre daha fazla enerji absorbe ettiğini ortaya koymuş; en yüksek darbe dayanımı (24.53 kJ/m²) 72 saat dondurulan numunelerde ölçülmüştür. Kırık yüzey incelemeleri, dondurma süresinin çatlak ilerleme deseninde anlamlı bir değişime neden olmadığını göstermiştir. Genel olarak, elde edilen sonuçlar PLA+ malzemesinin kriyojenik koşullarda mekanik dayanımını koruduğunu ve hatta artırabildiğini göstermekte olup, bu malzemeyi zorlu çevresel koşullarda kullanılabilecek işlevsel parçalar için uygun bir aday haline getirmektedir.

Keywords

Kriyojenik koşul, 3B Baskılı PLA+, Darbe dayanımı

Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+

Abstract

This preliminary study investigates the effect of freezing duration on the impact and strength performance of 3D-printed PLA+ specimens produced with 50% and 100% infill densities in a honeycomb pattern using the FDM technique. Samples were stored at -80 °C for varying time intervals (up to 72 hours), and their dimensional changes, hardness, and impact resistance were evaluated. Results indicate that prolonged exposure to sub-zero temperatures caused a slight reduction in specimen diameter, likely due to material shrinkage. Conversely, hardness values increased with freezing time, reaching a maximum Shore D value of 85.78 for fully solid samples. Impact testing revealed that 100% infill density specimens absorbed more energy than 50% counterparts, with the highest impact strength (24.53 kJ/m²) observed after 72 hours of freezing. Visual analysis showed no significant variation in crack trajectory with freezing duration. Overall, the findings suggest that PLA+ retains and even improves its mechanical robustness under cryogenic conditions, making it a promising candidate for applications requiring durability in extreme environments.

Keywords

Freezing Time, 3D-Printed PLA+, Impact Resistance

Ethical Statement

This study does not involve human or animal participants. All procedures followed scientific and ethical principles, and all referenced studies are appropriately cited.

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Details

Primary Language

English

Subjects

Mechanical Engineering (Other)

Journal Section

Research Article

Authors

Enes Aslan ^*
0000-0002-1849-2715
Türkiye

Publication Date

October 30, 2025

Submission Date

August 3, 2025

Acceptance Date

September 30, 2025

Published in Issue

Year 2025 Volume: 13 Number: 4

DOI

https://doi.org/10.29130/dubited.1757310

IZ

https://izlik.org/JA65HG64GW

APA

Aslan, E. (2025). Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+. Duzce University Journal of Science and Technology, 13(4), 1799-1811. https://doi.org/10.29130/dubited.1757310

AMA

1.Aslan E. Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+. DUBİTED. 2025;13(4):1799-1811. doi:10.29130/dubited.1757310

Chicago

Aslan, Enes. 2025. “Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+”. Duzce University Journal of Science and Technology 13 (4): 1799-1811. https://doi.org/10.29130/dubited.1757310.

EndNote

Aslan E (October 1, 2025) Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+. Duzce University Journal of Science and Technology 13 4 1799–1811.

IEEE

[1]E. Aslan, “Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+”, DUBİTED, vol. 13, no. 4, pp. 1799–1811, Oct. 2025, doi: 10.29130/dubited.1757310.

ISNAD

Aslan, Enes. “Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+”. Duzce University Journal of Science and Technology 13/4 (October 1, 2025): 1799-1811. https://doi.org/10.29130/dubited.1757310.

JAMA

1.Aslan E. Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+. DUBİTED. 2025;13:1799–1811.

MLA

Aslan, Enes. “Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+”. Duzce University Journal of Science and Technology, vol. 13, no. 4, Oct. 2025, pp. 1799-11, doi:10.29130/dubited.1757310.

Vancouver

1.Enes Aslan. Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+. DUBİTED. 2025 Oct. 1;13(4):1799-811. doi:10.29130/dubited.1757310

3B Baskılı PLA+ Malzemesinin Sertlik ve Darbe Dayanımı Üzerine Dondurma Süresinin Etkisi

Abstract

Keywords

Influence of Freezing Time on Hardness and Impact Resistance of 3D-Printed PLA+

Abstract

Keywords

Ethical Statement

References

Details

Primary Language

Subjects

Journal Section

Authors

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

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