Proceedings of the 10th International Conference on Science and Technology (ICST 2024)

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The Optimization of Infill Pattern and FFF Printing Parameters for Improving Flexural Strength for Carbon Fiber Reinforced Nylon

Authors
Ratmono Hari Widyatmoko1, 2, *, Muslim Mahardika1, 3, Budi Arifvianto1, 3, Andreas Sugijopranoto2
1Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jl. Grafika 2, Yogyakarta, 55281, Indonesia
2Politeknik ATMI Surakarta, Jl. Mojo No. 1, Karangasem, Laweyan, Surakarta, 57145, Indonesia
3Centre for Innovation of Medical Equipment and Devices (CIMEDs), Faculty of Engineering, Universitas Gadjah Mada, Jl. Teknika Utara, Yogyakarta, 55281, Indonesia
*Corresponding author. Email: ratmonohariwidyatmoko@mail.ugm.ac.id
Corresponding Author
Ratmono Hari Widyatmoko
Available Online 1 July 2025.
DOI
10.2991/978-94-6463-772-4_34How to use a DOI?
Keywords
Flexural Strength; FFF 3D printing; Taguchi; Anova; Carbon Fiber Reinforced Nylon; Printing parameters
Abstract

This study investigates the flexural strength of Carbon Fiber Reinforced Nylon (CFRN) produced via Fused Filament Fabrication (FFF) about key printing parameters: extrusion temperature, printing speed, and infill pattern. While CFRN is known for its enhanced mechanical properties, the specific impact of these parameters on flexural strength still needs to be explored. Using a Taguchi orthogonal array L9 (33) design, experiments were conducted with extrusion temperatures of 260 ℃, 280 ℃, and 300 ℃, printing speeds of 40, 70, and 100 mm/s, and infill patterns of triangle, grid, and honeycomb, all set at an infill percentage of 20%. Analysis of variance (ANOVA) was applied to assess the significance of each parameter and their interactions with flexural strength. The results revealed that the infill pattern and printing parameters significantly influence flexural strength, with the highest value of 60.2 MPa observed using a honeycomb infill, a printing speed of 100 mm/s, and an extrusion temperature of 260 ℃. These findings suggest that optimizing print settings, including infill pattern, can greatly improve the mechanical performance of CFRN components in FFF applications.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 10th International Conference on Science and Technology (ICST 2024)
Series
Advances in Engineering Research
Publication Date
1 July 2025
ISBN
978-94-6463-772-4
ISSN
2352-5401
DOI
10.2991/978-94-6463-772-4_34How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Ratmono Hari Widyatmoko
AU  - Muslim Mahardika
AU  - Budi Arifvianto
AU  - Andreas Sugijopranoto
PY  - 2025
DA  - 2025/07/01
TI  - The Optimization of Infill Pattern and FFF Printing Parameters for Improving Flexural Strength for Carbon Fiber Reinforced Nylon
BT  - Proceedings of the 10th International Conference on Science and Technology (ICST 2024)
PB  - Atlantis Press
SP  - 385
EP  - 398
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-772-4_34
DO  - 10.2991/978-94-6463-772-4_34
ID  - Widyatmoko2025
ER  -