PSI - Issue 41

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 41 (2022) 158–174

2nd Mediterranean Conference on Fracture and Structural Integrity Mechanical behavior of Material Extrusion Additive Manufactured components: an overview Saveria Spiller a , Filippo Berto a , Seyed Mohammad Javad Razavi a *

a Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, Richard Birkelands vei 2B, 7491 Trondheim, Norway

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. Abstract Material Extrusion Additive Manufacturing (MEAM) is a technique that allows the production of parts out of metals, ceramics, or cermets in an innovative way. The components are shaped through the Fused Deposition Modeling (FDM) process, which is a well-known cost-effective technique mainly used with polymers such as PLA and ABS. FDM enables a flexible and customized production, with high geometry complexity achievable and limited safety issues. The filament used in MEAM referred to as high-filled polymer, is a polymeric matrix with a high percentage of metal or ceramic powder dispersed in it. After the shaping phase, the polymer is removed from the part through the process called debinding. The ultimate result is achieved by sintering the part at a temperature sufficiently high to allow the powder particles to bond together. The sintered components' mechanical properties were compared with the ones obtained through conventional processes. A great effort was done to study the static behavior of the parts and the relation with the printing parameters. Nevertheless, more investigations are required for a better understanding of the mechanical performance of such components. This review gathers several works about MEAM, with a particular focus on metal materials. The main aspects and issues so far disclosed about the process are covered. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. Keywords: Material Extrusion Additive Manufacturing; Fused Deposition Modeling; high-filled polymers; metals; stainless steel l

* Corresponding author. E-mail address: javad.razavi@ntnu.no

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the MedFract2Guest Editors.

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. 10.1016/j.prostr.2022.05.018