The Influence of Printing Orientation on the Flexural Strength of PA 12 Specimens Produced by SLS

This article aims to investigate the mechanical characteristics cf specimens fabricated using Selective Laser Sintering technology. The research covers flexural specimens, produced by PA12 materials. CAD model dimensions were selected according to the ISO 178 standard, and the chosen specimen geomet...

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Bibliographic Details
Published in:Science of sintering 2024-01, Vol.56 (1), p.45-57
Main Authors: Jevtić, Ivana, Mladenović, Goran, Milovanović, Aleksa, Trajković, Isaak, Durković, Marija, Korolija, Nenad, Milošević, Miloš
Format: Article
Language:English
Subjects:
3-D printers
Additive manufacturing
Bottlenecks
Flexural strength
Laser sintering
Mechanical properties
Modulus of rupture in bending
Polymers
Powder beds
Printing
Sintering (powder metallurgy)
Specimen geometry
Vertical orientation
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Summary:This article aims to investigate the mechanical characteristics cf specimens fabricated using Selective Laser Sintering technology. The research covers flexural specimens, produced by PA12 materials. CAD model dimensions were selected according to the ISO 178 standard, and the chosen specimen geometry is 96 x 8 x 4 [mm] in bulk. All specimens were produced using a specialized machine Fuse 1 (FormLabs, Summerville, MA). Four specimen batches were produced, each with a deferent printing orientation (i.e. vertical and horizontal) and location on the printing plate (i.e. in the middle and on the edge cf the powder bed). The specimens are tested using a Shimadzu universal machine for testing the mechanical characteristics cf materials, AGS-X 100 kN, with a unique additional tool for testing 3-point bending specimens.
ISSN:0350-820X
1820-7413
DOI:10.2298/SQS230508031J