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The Influence of 3D Printing Direction on the Mechanical Properties of Manufactured Elements
 
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1
Polish Air Force University, ul. Dywizjonu 303 35, 08-521 Dęblin, Poland
 
2
Pillartec Sp. Z.o.o, ul. Franciszka Ksawerego Druckiego-Lubeckiego 1A, 71-656 Szczecin, Poland
 
3
Military University of Technology, ul. Kaliskiego 2, 00 -908 Warszawa, Poland
 
 
Corresponding author
Andrzej Komorek   

Polish Air Force University, ul. Dywizjonu 303 No. 35, 08-521 Dęblin, Poland
 
 
Adv. Sci. Technol. Res. J. 2024; 18(8):86-95
 
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ABSTRACT
The internal structure of a material is crucial in the design of a number of components, especially those that carry significant loads. Also, the design of such 3D printed components should take into account the type of internal structure of a printed piece. The aim of the study was to evaluate the influence of an internal structure (degree of filling and printing direction) of a 3D printed component on its selected mechanical properties. To carry out experimental research, a set of PLA filament samples was prepared using 3D printing, using a MakerBot Replicator Z18 printer. The test pieces were manufactured in both longitudinal and transverse printing; both the longitudinal and transverse printing were made in two positionings: plane and edge. In this case, four different internal structures were obtained from which static tensile strength and impact tests were carried out. In addition, the samples were made with three different filling options: 100%, 70% and 30%. As a result of the research, it was found that the strength of elements produced by 3D printing from PLA is higher if they are printed in an edge formula, which means that the speed of applying subsequent layers probably plays an important role in building strength.
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