Failure behavior of PA12 based SLS lattice structure with macro-porosity

Nowadays the demands of high reliability, high mechanical properties under fatigue loading and ultra-light-weight design are topics of pressing needs in different industry applications. Additive manufacturing technique has great potential to meet such demands and Selective Laser Sintering (SLS) is t...

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Bibliographic Details
Published inMATEC Web of Conferences Vol. 188; p. 3007
Main Authors Gümüs, Serap, Lackner, Juergen M., Polat, Şeyda, Kraschitzer, Wolfgang, Hanning, Hermann, Bayram, Alperen, Kaya, Mesut, Çallı, Metin, Alkan, Attila
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2018
Subjects
Compression loads
Fused deposition modeling
Industrial applications
Laser sintering
Mechanical properties
Porosity
Rapid prototyping
Sintering (powder metallurgy)
Struts
Topology
Unit cell
Weight reduction
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Summary:Nowadays the demands of high reliability, high mechanical properties under fatigue loading and ultra-light-weight design are topics of pressing needs in different industry applications. Additive manufacturing technique has great potential to meet such demands and Selective Laser Sintering (SLS) is the dominantly used one due to its versatility in material design, construction and the much higher achievable mechanical strength compared to its competing technologies like fused filament fabrication. In this study, it is aimed to give an insight to the fracture behaviour of SLS produced lattice structure with macro-porosity under compression load. The stress type and distribution on the lattice structure under compression load are anisotropic because of the unit cell topologies and the anisotropic processing condition. Therefore, different kinds of fracture types are evident depending on the region of the fractured struts.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201818803007