Affiliation:
1. Wrocław University of Science and Technology, Faculty of Mechanical Engineering
2. Adam Mickiewicz University Poznań, Wielkopolska Centre for Advanced Technologies
Abstract
The article presents the results of basic tribological research of polylactide enriched with MoS2 powder. The
research was conducted on a pin-on-disc station. Samples dimensions: 8 mm height, 8 mm diameter, printed
in FFF/FDM method. Two mass percentages of addition were created: 1% and 2.5%. As counter-specimen
steel (C45) disc was used. Ra roughness of counter-specimen was in the range of 0.3–0.4. The main purpose is
to determine optimal, in the light of tribological properties, mass percentage values of additions in polylactide
in the 3D printing application. The research has shown that materials with more MoS2 addition would not be
a good material for use in the production of prototype bearings, due to increased linear wear. It is also worth
noting that the MoS2 addition improves material properties in terms of the 3D printing process. Thanks to the
addition, even up to 1%, the required temperature of the printing nozzle has been significantly reduced, as well
as flow resistance in the nozzle.
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