TY - JOUR
T1 - Role of infill parameters on the mechanical performance and weight reduction of PEI Ultem processed by FFF
AU - Forés-Garriga, Albert
AU - Pérez, Marco A.
AU - Gómez-Gras, Giovanni
AU - Reyes-Pozo, Guillermo
N1 - Funding Information:
This work has been supported by the Ministry of Science, Innovation and Universities through the project New Developments in Lightweight Composite Sandwich Panels with 3D Printed Cores (3DPC) - RTI2018-099754-A-I00 ; and by the RIS3CAT Llavor 3D Community co-financed by the Generalitat de Catalunya (ACCIÓ) through the project TRANSPORT COMRDI16-1-0010 - (2017-2020). The authors are very grateful to Ariadna Chueca de Bruijn for the constructive suggestions and for the assistance in conducting the experiments.
Publisher Copyright:
© 2020 The Authors
PY - 2020/8
Y1 - 2020/8
N2 - In comparison with conventional manufacturing technologies, Fused Filament Fabrication (FFF) offers countless benefits. It broadens the horizons of the design of structural components with high geometrical complexity, and lighter elements can be obtained by optimizing the infill of the part. The infill density stands as a manufacturing parameter that plays a significant part in weight reduction purposes. This fact provides FFF with an outstanding competitive advantage as compared to the rest of the additive manufacturing technologies. This work aims to investigate the role of infill parameters on the mechanical performance and weight reduction of ULTEMTM 9085 samples processed by FFF, under tensile, flexural, and shear loading conditions in six different orientations with several solid and sparse configurations. Regarding the effect of the part orientation and the infill settings, the experimental results permit to draw conclusions on stiffness, resilience, maximum stress, and type of failure of the printed parts. Three-dimensional compliance matrices for each infill configuration are provided. The analysis of the results correlates the infill configuration with the mechanical performance considering the intra-layer and inter-layer unions. Finally, this research provides experimental evidence to contribute to the definition of novel design-for-manufacturing strategies for obtaining functional structural elements by FFF.
AB - In comparison with conventional manufacturing technologies, Fused Filament Fabrication (FFF) offers countless benefits. It broadens the horizons of the design of structural components with high geometrical complexity, and lighter elements can be obtained by optimizing the infill of the part. The infill density stands as a manufacturing parameter that plays a significant part in weight reduction purposes. This fact provides FFF with an outstanding competitive advantage as compared to the rest of the additive manufacturing technologies. This work aims to investigate the role of infill parameters on the mechanical performance and weight reduction of ULTEMTM 9085 samples processed by FFF, under tensile, flexural, and shear loading conditions in six different orientations with several solid and sparse configurations. Regarding the effect of the part orientation and the infill settings, the experimental results permit to draw conclusions on stiffness, resilience, maximum stress, and type of failure of the printed parts. Three-dimensional compliance matrices for each infill configuration are provided. The analysis of the results correlates the infill configuration with the mechanical performance considering the intra-layer and inter-layer unions. Finally, this research provides experimental evidence to contribute to the definition of novel design-for-manufacturing strategies for obtaining functional structural elements by FFF.
KW - Additive manufacturing
KW - Constitutive matrix
KW - Fused filament fabrication
KW - Infill
KW - Mechanical properties
KW - PEI Ultem
UR - http://www.scopus.com/inward/record.url?scp=85085269999&partnerID=8YFLogxK
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=pure_univeritat_ramon_llull&SrcAuth=WosAPI&KeyUT=WOS:000568762400002&DestLinkType=FullRecord&DestApp=WOS_CPL
U2 - 10.1016/j.matdes.2020.108810
DO - 10.1016/j.matdes.2020.108810
M3 - Article
AN - SCOPUS:85085269999
SN - 0264-1275
VL - 193
JO - Materials and Design
JF - Materials and Design
M1 - 108810
ER -