PSI - Issue 24

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 24 (2019) 758–763

© 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the AIAS2019 organizers Abstract The present paper proposes an environmental sustainability-oriented Design for Additive Manufacturing approach, which takes into account material, shape, and additive process, in order to guide the designer towards environmentally conscious choices in terms of component characteristics, correlating them with the peculiarities of the additive process and its main parameters. In its formulation, the approach has been developed with reference to the specific class of "powder bed fusion" additive processes for metallic materials, in which the volume growth by stratified fusion of powder layers, takes place by means of power beams. As a reference process, that of Electron Beam Melting has been considered. The quantification of the environmental impact of built components focuses on the estimation of the intrinsic energy consumption of the additive process, correlating it to the main process parameters, and to some significant features that characterize the shape of the component. To analyze the dependence of the energy impact on the material and shape characteristics, the case of Ti6Al4V components is studied. © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the AIAS2019 organizers AIAS 2019 International Conference on Stress Analysis An approach to design for environmental sustainability of additive manufactured metal components Giovanna Fargione a , Fabio Giudice a, * a Department of Civil Engineering and Architecture, University of Catania, Via Santa Sofia 64, 95123 Catania, Italia Abstract The present paper proposes an environmental sustai ability- riented Design for Additive Manufacturing approach, which takes into account mat rial, sh pe, and additive process, in order to guide the design r towards environmentally conscious choices in ter s of component characteristics, correlating them with th peculiarities of the additive process and its main parameters. In its formulation, the approach as been developed with reference to the specific cl ss of "powder bed fusio " additive processes for metalli materials, in which the volume growth by stratifi d fusion of powd r layers, t kes place by means of power beams. As a referenc process, that of Electron Beam Melting has b en considered. The quantification of the envir nmental impact of built components focuses on the estimation of th intrinsic energy consumption of the additive process, correlating it to the main process para eters, and to some significant features that characterize the shape of the component. To analyze the dependence of the energy impact on the material and shape characteristics, the case of Ti6Al4V components is studied. © 2019 The Authors. Published by Elsevier B.V. This is an ope access article under t CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the AIAS2019 organizers AIAS 2019 International Conference on Stress Analysis An approach to design for environmental sustainability of additive manufactured metal components Giovanna Fargione a , Fabio Giudice a, * a Department of Civil Engineering and Architecture, University of Catania, Via Santa Sofia 64, 95123 Catania, Italia

Keywords: Design for Additive Manufacturing; Energy efficiency; Electron beam melting; TI6AL4V alloy Keywords: Design for Additive Manufacturing; Energy efficiency; Electron beam melting; TI6AL4V alloy

1. Introduction The progression from rapid prototyping to the production of end-use product has projected the technologies of Additive Manufacturing (AM) toward a leading position in the panorama of manufacturing processes, also in the 1. Introduction The progression from rapid prototyping to the production of end-use product has projected the technologies of Additive Manufacturing (AM) toward a leading position in the panorama of manufacturing processes, also in the

* Corresponding author. Tel.: +39-095-738-2419. E-mail address: fgiudice@dii.unict.it * Correspon ing author. Tel.: +39-095-738-2419. E-mail address: fgiudice@dii.unict.it

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the AIAS2019 organizers 2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an ope acces article under CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Peer-review under responsibility of the AIAS2019 organizers

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the AIAS2019 organizers 10.1016/j.prostr.2020.02.067