Detry, Andrea Lorenzo Henri Sergio (2024) Foam Additive Manufacturing: tailored foam structures produced via material extrusion. [Tesi di dottorato]

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Tipologia del documento: Tesi di dottorato
Lingua: English
Titolo: Foam Additive Manufacturing: tailored foam structures produced via material extrusion
Autori:
Autore
Email
Detry, Andrea Lorenzo Henri Sergio
detryandrea9@gmail.com
Data: 11 Dicembre 2024
Numero di pagine: 164
Istituzione: Università degli Studi di Napoli Federico II
Dipartimento: Ingegneria Chimica, dei Materiali e della Produzione Industriale
Dottorato: Ingegneria dei prodotti e dei processi industriali
Ciclo di dottorato: 37
Coordinatore del Corso di dottorato:
nome
email
D'Anna, Andrea
anddanna@unina.it
Tutor:
nome
email
Squillace, Antonino
[non definito]
Daniele, Tammaro
[non definito]
Data: 11 Dicembre 2024
Numero di pagine: 164
Parole chiave: Foam Additive Manufacturing (FAM), Monomaterial Tailored Foam Structures, Microstructural Morphology Control, Polylactic Acid (PLA), Process Parameter Optimization.
Settori scientifico-disciplinari del MIUR: Area 09 - Ingegneria industriale e dell'informazione > ING-IND/14 - Progettazione meccanica e costruzione di macchine
Area 09 - Ingegneria industriale e dell'informazione > ING-IND/16 - Tecnologie e sistemi di lavorazione
Area 09 - Ingegneria industriale e dell'informazione > ING-IND/22 - Scienza e tecnologia dei materiali
Informazioni aggiuntive: TESI APPARENENTE AL 37 CICLO DEL DICMAPI
Depositato il: 21 Ott 2025 04:08
Ultima modifica: 09 Ago 2026 05:56
URI: https://www.fedoa.unina.it/id/eprint/16332

Abstract

The widespread adoption of foam additive manufacturing (FAM) in industries, ranging from biomedical to aerospace, hinges on the precise control of foam morphology, a capability not fully realized with current technologies. This study explores the potential of the FAM process, employing polylactic acid (PLA) and carbon dioxide (CO2) as a blowing agent, to finely tune the microstructural characteristics of foamed materials through controlled manipulation of process parameters. By systematically varying the pressure of the blowing agent, the time of absorption and desorption, extrusion temperature, speed and nozzle diameter, we provide a detailed analysis of their individual and collective impact on foam morphology, at both macroscopic and microscopic levels. Our findings reveal how specific parameter adjustments can significantly influence the density, diameter and bubble size distribution within the foamed strands. These insights not only bridge a critical knowledge gap in FAM process optimization, but also empower designers and engineers across various sectors to engineer foams with tailored properties for enhanced performance in lightweighting, insulation and shock absorption applications. This research serves as a foundational guide for advancing the practical utility and scientific understanding of FAM technologies in producing next-generation foamed materials.

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