Cozzolino, Ersilia (2023) Integrated approach for process parameters optimization of metal Powder Bed Fused parts post-processed by machining from an energy-saving perspective. [Tesi di dottorato]
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| Tipologia del documento: | Tesi di dottorato |
|---|---|
| Lingua: | English |
| Titolo: | Integrated approach for process parameters optimization of metal Powder Bed Fused parts post-processed by machining from an energy-saving perspective |
| Autori: | Autore Email Cozzolino, Ersilia ersilia.cozzolino@unina.it |
| Data: | 12 Dicembre 2023 |
| Numero di pagine: | 174 |
| 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: | 36 |
| Coordinatore del Corso di dottorato: | nome email D'ANNA, ANDREA anddanna@unina.it |
| Tutor: | nome email ASTARITA, ANTONELLO [non definito] LOPRESTO, VALENTINA [non definito] |
| Data: | 12 Dicembre 2023 |
| Numero di pagine: | 174 |
| Parole chiave: | sustainability, additive manufacturing, postprocessing, machining |
| Settori scientifico-disciplinari del MIUR: | Area 09 - Ingegneria industriale e dell'informazione > ING-IND/16 - Tecnologie e sistemi di lavorazione |
| Depositato il: | 08 Gen 2024 10:34 |
| Ultima modifica: | 12 Ago 2026 05:36 |
| URI: | https://www.fedoa.unina.it/id/eprint/15639 |
Abstract
Additive Manufacturing (AM) plays a key role in the Industry 4.0 context. It consists of producing three-dimensional objects by adding layers of material based on a three-dimensional computer model. It allows the fabrication of customized products thanks to its ability to create complex objects with advanced attributes. AM is currently becoming a key technology in industries such as aerospace, biomedical, and manufacturing. AM is claimed to be a green technology because it holds great potential in improving materials efficiency, reducing life cycle impacts, and enabling greater engineering functionality compared to conventional technologies. Consequently, time and cost may be potentially reduced for small-volume parts manufacturing. Thus, AM could be used to advance sustainability but the literature lacks guidelines to obtain products made by Additive Manufacturing with good mechanical properties by saving energy and reducing the impact on the environment. What is more, surface finishing of AM parts hardly ever meets the industrial quality requirements so post-process machining is often needed. Although in existing literature the assessment of the machining process was carried out, there is a lack of studies in which the energy consumption and quality of the parts manufactured by AM techniques and postprocessed by machining are jointly evaluated. This Ph.D. thesis proposes an approach integrating both metal Powder Bed Fusion techniques, Selective Laser Melting and Electron Beam Melting, with post-processing by machining to help decision-making in industrial contexts. Surface roughness and energy consumption during the manufacturing steps were critically investigated to demonstrate how to better select process conditions to reduce energy consumption without sacrificing the surface finishing of the parts.
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