Fused deposition modeling (FDM) is a rapidly growing additive manufacturing technology for various applications in field of engineering. Mechanical properties of 3D printed materials in FDM technology depend on various parameters. Literature suggests that type and density of infill are parameters that affecting the mechanical properties of 3D printed materials, and also have direct influence on 3D printing time and amount of 3D printed material. In this paper influence of infill type and density on tensile properties, 3D printing time and amount of 3D printed material will be investigated and presented. Total of 13 different types of infill and for every type it will be tested 9 specimens with different infill density from 10% to 90%. Every specimen would be 3D printed of PLA material with same colour and 3D printing parameters, also at the same position on printer bed to maximally reduce influence of other factors on mechanical properties of material. The obtained results would give us a wider picture of how to maximally save on 3D printing time and amount of material consumed in the production, but to still keep required tensile properties.
Today, one of the most used material in FDM (fused deposition modelling) 3D printing technology is PLA (polylactic acid). On market today, there are many different companies that producing PLA material filament for 3D printers with different diameter and colours. Previous research showing that there are so many parameters in FDM technology that affect on mechanical properties of 3D printed material like layer height, infill density, temperature etc. Topic of this article is to investigate whether colour of PLA material effect on material tensile properties and in what amount. It will be tested more than 10 different colours of PLA material, and for every colour it will be tested 3 specimens. Specimens are prepared according to ISO 527-2, and all printed with same 3D printing parameters and with 100% infill. Also, all used materials are of same company and for every colour specimen will be 3D printed from same filament spool. All this is done to avoid other parameters to effect on material properties. The results of this study will be useful for colour selection of the PLA material without compromising the material tensile properties of 3D printed product.
Widely used additive manufacturing technique for plastic materials is Fused Deposition Modelling (FDM). The FDM technology has gained interest in industry for a wide range of applications, especially today when large number of different materials on the market are available. There are many different manufacturers for the same FDM material where the difference in price goes up to 50%. This experimental study investigates possible difference in strength of the 3D printed PLA material of five different manufacturers. All specimens are 3D printed on Ultimaker S5 printer with the same printing parameters, and they are all the same colour.
One of the advantages provided by fused deposition modelling (FDM) 3D printing technology is the manufacturing of product materials with infill structure, which provides advantages such as reduced production time, product weight and even the final price. In this paper, the tensile mechanical properties, tensile strength and elastic modulus, of PLA, Tough PLA and PC FDM 3D printed materials with the infill structure were analysed and compared. Also, the influence of infill pattern on tensile properties was analysed. Material testing were performed according to ISO 527-2 standard. All results are statistically analysed and results showed that infill pattern have influence on tensile mechanical properties for all three materials.
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