Browsing by Subject "selective laser melting"

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Access status: Open Access ,
Projekt, optymalizacja i wykonanie prototypu sportowego zacisku hamulcowego do motocykli z wykorzystaniem technologii przyrostowych
(Wydawnictwa AGH, 2025) Adamiec, Karol
W niniejszym artykule przedstawiono prototyp motocyklowego zacisku hamulcowego, zaprojektowanego z myślą o produkcji przyrostowej technologią SLM ze stopu Ti6Al4V. Celem projektu była maksymalna redukcja masy w stosunku do pierwotnego korpusu zacisku przy jednoczesnym zachowaniu wymaganej wytrzymałości w warunkach eksploatacyjnych. W ramach pracy wykorzystano inżynierię odwrotną z zastosowaniem technologii skanowania 3D światłem strukturalnym, co pozwoliło na zachowanie kompatybilności z wybranym motocyklem. Geometrię prototypowego zacisku opracowano na podstawie analiz symulacji naprężeń oraz optymalizacji MES, uwzględniając wyznaczony układ obciążeń w warunkach maksymalnego hamowania. Artykuł prezentuje postępowanie projektowe, oparte na optymalizacji konstrukcji dla technik produkcji przyrostowych i nadające się do adaptacji w produkcji szerszej grupy podzespołów motoryzacyjnych.
Access status: Open Access ,
Reverse Engineering and Computer Modelling in Archaeometallurgy for the Reconstruction of Heritage Objects Using Precision Casting and 3D Printing
(AGH University Press, 2025) Marlicka, Karolina; Fijołek, Andrzej; Garbacz-Klempka, Aldona; Piękoś, Marcin
This article presents an interdisciplinary approach to the reconstruction of a copper-alloy artefact using reverse engineering techniques combined with modern digital and manufacturing technologies. The research was motivated by the need to better understand historical casting techniques while preserving the integrity of cultural heritage objects through non-destructive methods. The study integrates 3D scanning, CAD-based modelling, numerical simulations, investment casting, and metal additive manufacturing. The geometry of the artefact was captured using high-resolution 3D scanning, enabling the development of two CAD models: one representing the preserved state of the object and a second reconstructed model with the missing fragment digitally restored. Both models were used for numerical simulations of mould filling, solidification, cooling, and porosity formation performed in MAGMASOFT® 6.1, allowing the assessment of technological feasibility and defect formation. Based on the simulation results, physical replicas were produced using investment casting and selective laser melting. The obtained numerical and experimental results were compared in terms of geometry reproduction, surface characteristics, and predicted versus observed casting behaviour. The study demonstrates that the combination of digital reconstruction, simulation tools, and experimental manufacturing provides a reliable framework for analysing historical metallurgical processes. The proposed methodology supports both scientific interpretation and the practical reconstruction of heritage objects and can be applied to a wide range of archaeometallurgical studies.
Access status: Open Access ,
Study of AlSi7Mg0.6 alloy by selective laser melting - mechanical properties, microstructure, heat treatment
(AGH University of Science and Technology Press, 2019) Mauduit, Arnold; Gransac, Hervé; Auguste, Pierre; Pillot, Sébastien
This study presents a panorama of the AlSi7Mg0.6 (A357) aluminum alloy in additive manufacturing by selective laser melting. The document is mainly interested in the metallurgical tempers obtained after manufacture and after heat treatment, it quickly cover the process. The results concerning the material integrity (porosity), mechanical properties, microstructures, residual stresses, etc., are presented in order to best define the technological capacities of these metallurgical tempers: as-built, soft annealed, T6, and artificial aging. Some information on the mechanisms and kinetics of precipitation is also presented using the Johnson-Mehl-Avrami-Kolmogorov model. Finally, the conclusion proposes an inventory (advantages/disadvantages) of the metallurgical tempers obtained to better understand the industrial applications.