PSI - Issue 42

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

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 42 (2022) 1239–1248

23 European Conference on Fracture-ECF23 Fabrication and characterization of 316L stainless steel components printed with material extrusion additive manufacturing Saveria Spiller a , Sondre Olsøybakk Kolstad 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 scientific committee of the 23 European Conference on Fracture – ECF23 Abstract Material Extrusion Additive Manufacturing (MEAM) is an innovative technique recently used to produce metal and ceramic components. The fabrication process involves three main phases: shaping, debinding, and sintering. The shaping phase is obtained using a simple FDM printer with a filament composed of metal powder dispersed in a polymeric matrix. In this work, several specimens were fabricated using the commercial filament BASF Ultrafuse 316L which contains the 88wt% of 316L powder. The fabrication quality was assessed by density measurement and surface analysis of the printed parts. Tensile specimens were also printed, debonded, and sintered to perform tensile tests and evaluate the tensile properties of the material. The present work illustrates the main issues and the key parameters used in the shaping phase to achieve high-quality components before and after the debinding and sintering phases. A comparison between the tensile properties of specimens obtained in similar works and with other fabrication processes is also offered. © 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 23 European Conference on Fracture - ECF23. Keywords: Material Extrusion Additive Manufacturing; Fused Deposition Modeling; high-filled polymers; metals; stainless steel 316L A

List of abbreviations

MEAM: Material Extrusion Additive Manufacturing SDS: Shaping, Debinding, Sintering

* 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 23 European Conference on Fracture - ECF23 .

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 scientific committee of the 23 European Conference on Fracture – ECF23 10.1016/j.prostr.2022.12.158