The specific energy consumption of Additive Manufacturing (AM) unit processes for the production of metal parts could be much higher than that of more traditional manufacturing routes, such as machining. However, AM, due to its intrinsic process peculiarities, including the flexible realization of (almost) any kind of complex shape, has a great potential for improving the material use efficiency, with positive environmental impact benefits from the material production to the product use and disposal at the end of first life. Aim of this paper is to assess the role of the design choices on the environmental AM process sustainability. An integrated design methodology (accounting for the product re-design via topological optimization, the design of support structures, and the design of allowances and features for post-AM finishing operations) for components produced by means of laser powder bed fusion processes is considered. One resource (the cumulated energy demand) and one emission (carbon dioxide) are assumed as metrics for the impact assessment across the product life cycle. The results demonstrate the importance of a proper design for AM to improve the overall energy and emission saving potential.

Laser powder bed fusion (L-PBF) additive manufacturing: On the correlation between design choices and process sustainability / Priarone, Paolo C.; Lunetto, Vincenzo; Atzeni, Eleonora; Salmi, Alessandro. - STAMPA. - 78:(2018), pp. 85-90. ((Intervento presentato al convegno 6th CIRP Global Web Conference “Envisaging the future manufacturing, design, technologies and systems in innovation era” tenutosi a Shantou (China) nel October 23-25, 2018 [10.1016/j.procir.2018.09.058].

Laser powder bed fusion (L-PBF) additive manufacturing: On the correlation between design choices and process sustainability

Priarone, Paolo C.;Lunetto, Vincenzo;Atzeni, Eleonora;Salmi, Alessandro
2018

Abstract

The specific energy consumption of Additive Manufacturing (AM) unit processes for the production of metal parts could be much higher than that of more traditional manufacturing routes, such as machining. However, AM, due to its intrinsic process peculiarities, including the flexible realization of (almost) any kind of complex shape, has a great potential for improving the material use efficiency, with positive environmental impact benefits from the material production to the product use and disposal at the end of first life. Aim of this paper is to assess the role of the design choices on the environmental AM process sustainability. An integrated design methodology (accounting for the product re-design via topological optimization, the design of support structures, and the design of allowances and features for post-AM finishing operations) for components produced by means of laser powder bed fusion processes is considered. One resource (the cumulated energy demand) and one emission (carbon dioxide) are assumed as metrics for the impact assessment across the product life cycle. The results demonstrate the importance of a proper design for AM to improve the overall energy and emission saving potential.
File in questo prodotto:
File Dimensione Formato  
2018, Procedia CIRP 78 (2018) 85-90.pdf

non disponibili

Descrizione: Versione dell'editore (open access)
Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 836.46 kB
Formato Adobe PDF
836.46 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2722673
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo