The Effect Of Build Orientation And Infill Pattern On Mechanical Properties Of 316L Parts Made By Material Extrusion-based Additive Manufacturing

Authors:

Maitane Gabilondo Nieto (IMH-Advanced and Digital Manufacturing Campus, Spain),
Francisco Castro (Independent Consultant, Spain),
Mario Arrue (IMH-Advanced and Digital Manufacturing Campus, Spain)

Abstract:

Extrusion-based additive manufacturing (EAM) is an alternative to the most common Additive Manufacturing (AM) technology for metal parts. As compared to Powder Bed Fusion (PBF) there are no loose powders or lasers during the manufacturing. However, the mechanical properties of the parts manufactured by EAM are generally lower than those of PBF, being necessary to study the process parameters to improve their performance. The purpose of this work is to analyse the influence of build orientation (horizontal and vertical) and infill pattern (concentric and lines) on the mechanical properties of 316L parts manufactured by EAM. Among the different EAM processes, the selected technology was Bound Metal Deposition (BMD). The experimental results showed that although both build orientation and infill pattern influenced the mechanical properties, build orientation exerted the most important influence on mechanical properties, obtaining ultimate tensile strengths (UTS) at least 160 MPa higher for horizontal specimens.

DOI:

https://doi.org/10.59499/WP225371713