PSI - Issue 79

Suzana Lampreia et al. / Procedia Structural Integrity 79 (2026) 81–87

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4. Conclusions AM represents a transformative opportunity to enhance maintenance management, especially for ageing assets or ships deployed or on mission at sea. When appropriately managed, printed parts can meet performance specifications, reduce lead time, and enhance operational autonomy. It is believed that addictive manufacturing has matured sufficiently to offer solutions for maritime maintenance challenges. By enabling on-demand production of spare parts such as electro-pump components, AM reduces reliance on fragile supply chains and enhances maintenance autonomy. The rapid prototyping and fabrication of critical spare parts may also be possible on board ships. One difficulty in implementing this maintenance concept is the quality assurance, certification, organizational acceptance, and the technical complexity of deployment systems. Implementing AM on electro pump maintenance may be viable, if provided digital libraries of spare parts designs, qualification protocols, and deployment logistics. A structured implementation of AM manufacture procedure may include part selection, suitable AM process choice, digital readiness, quality assurance, and operational logistics. When implementing an AM concept, creating Regulatory, technical, and organizational challenges must be addressed, with classification bodies and stakeholders working collaboratively on standards and training. Future work should include pilot projects on board military ships, certification trials, lifecycle cost analysis, and development of optimized component libraries on maintenance centers and on board. Acknowledgements The authors from CINAV and ISEL acknowledges the Portuguese Naval Academy for its support on participate on IGF28 and the publishing of these research work. References Agarwala, N. (2025). Utility of 3D printing in ship repairs., 7(1), 270067. Maritime Technology and Research, 7(1), 272285. doi:10.33175/mtr.2025.272285 Alzahmi, W., Shamayleh, A., & Stefancich, M. (2025). The role of additive manufacturing in spare parts management: A systematic review. Cleaner Engineering and Technology Journal, 27(101029), 1-13. Barnabas, A. (2025). Revamping Shipbuilding Capabilities in the United States: A Catalyst to Make America Great Again. Journal of Transportation Technologies, 15(3), 413-436. Chen, Z., Han, C., Gao, M. Kandukuri, S., & Zhou, K., (2021). A review on qualification and certification for metal addictive manufacturing. Virtual and Physical Prototyping Journal, 17(2), 382-405. Choi, L., Choi, M., Kwon, S., Youn, D., & Song, G. (2024). Modular production of small ship models using 3D printing for model tests. Ocean Engineering, 302, 1-12. Coruzzolo, A., Balugani, E., & Gamberini, R. (2022). Spare parts management with addictive manufacturing (AM): a critical review. IFAC PapersOnlçine. 50-10, pp. 1159-1164. Reggio Emilia, Italy: Elsevier. Debnath, B., Shakur, M., Tanjum, F., Rahman, M., & Adnan, Z. (2022). Impact of Additive Manufacturing on the Supply Chain of Aerospace Spare Parts Industry - A Review. Logistics Journal, 1-2025. Heinen, J., & Hoberg, K. (2019). Assessing the potential of additive manufacturing for the provision of spare parts. Technical note, 810-826. Jones, A. (22 de july de 2025). Austal USA Bolsters Naval Manufacturing with New 3D Printer from AML3D. Obtido de 3dprintingindustry: https://3dprintingindustry.com/news/austal-usa-bolsters-naval-manufacturing-with-new-3d-printer-from-aml3d-242138/ Kostidi, E., & Nikitakos, N. (2018). Is It Time for the Maritime Industry to Embrace 3d. Transnav the International Journal on Marine Navigation and Safety of Sea Transportation, 12(3), 557-564. Mecheter, A., Shaligram, P., & Tarlochan, F. (2022). Applied Sciences Journal, 12(4160), 1-22. Slegers, K., Delien, T., Bettelli, V., Lexis, M., Saey, T., Banes, D., & Daniels, R. (2023). Designing and manufacturing custom-made 3D printed assistive devices: A comparison of three workflows. Technology and Disability, 35, 171-182. doi:10.3233/TAD-221511 ZainElabdeen, I., Ismail, L., Mohamed, O., Khan, K., & Schiffer, A. (2024). Recent advancements in hybrid additive manufacturing of similar and dissimilar metals via laser powder bed fusion. Journal of Materials Science & Engineering A, 909(146833), 1-41.