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466 results on '"Squillace, Antonino"'

8. Sustainability of Fused Deposition Modeling: The Role of the Plate Material

Author

Cozzolino, Ersilia, Napolitano, Francesco, Astarita, Antonello, Lopresto, Valentina, Papa, Ilaria, Squillace, Antonino, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Haddar, Mohamed, Editorial Board Member, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Lopresto, Valentina, editor, Papa, Ilaria, editor, and Langella, Antonio, editor

Published
2023
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30. Laser-Directed Energy Deposition of H13: processing window and improved characterization procedures.

Author

Silvestri, Alessia Teresa, Bosetti, Paolo, and Squillace, Antonino

Subjects
TOOL-steel, DILUTION
Abstract

Additive manufacturing has the potential to create, repair, or enhance customized tools, but reliable processing guidelines for tool steels are necessary. This study focuses on printing H13 tool steel on a 316 L substrate using Laser-Directed Energy Deposition technology. A comprehensive study on the most influential process parameters was carried out, i.e. laser power (1400, 1600, 1800, 2000 W), powder feed rate (9, 12, 15 g/min) and scanning speed (1000, 1200 mm/min), for the production of single tracks. Cladding angle, aspect ratio, dilution, shift, microhardness, microstructures were selected as measured output. Manufacturing guidelines were established for a complete characterization of individual tracks, with a new approach for properly calculating the dilution. The tracks exhibited different properties and the influence of process parameters on the measured output was evaluated. The outcomes determine a technological window where it is possible to select the most sensible process parameters depending on the desired application. [ABSTRACT FROM AUTHOR]

Published
2023
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40. FSW of extruded and additively manufactured parts for automotive components.

Author

Napolitano, Francesco, El Hassanin, Andrea, Scherillo, Fabio, and Squillace, Antonino

Subjects
MANUFACTURING processes, HYBRID electric vehicles, ELECTRIC vehicle industry, ALUMINUM alloys, TENSILE tests
Abstract

The increasing production of hybrid electric vehicles draws the attention to the importance of lightweight structures and energy storage improvement. These objectives are pursued by using dissimilar aluminum alloys and customized parts, provided by different manufacturing processes, including additive manufacturing. This leads to the need of improving the joining procedure in challenging situations. The replacement of the traditional welding process, with a setup suitable for FSW, is investigated by this research study. An industrial component to be assembled was chosen, an extruded AA6063-T6 workpiece, which was welded to an AlSi10Mg 3D printed item. Different welding conditions were considered and investigated through metallography inspections and mechanical tests of the joints. All the tested welding showed a good quality proved by the stability of the tensile tests and the consistency of the microhardness measurements. The SEM analysis showed an optimal mixing. The promising results reported encourage for continuing in an industrialization perspective. [ABSTRACT FROM AUTHOR]

Published
2023
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