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  • Küçük Resim Yok
    Öğe
    Effects of Filling Percentage on Mechanical Properties of PLA and PET Materials
    (Gazi Univ, 2019) Evlen, Hatice; Ozdemir, Merve Ayfer; Caliskan, Aydin
    In this study, it is aimed to design a printer which has fused deposition technology and determine experimentally the effect of infill percentage on the mechanical properties with samples produced on the printer. A Cartesian type and open source three dimensional printer was modelled. Mechanical test samples were printed at 10, 20, 30, 40 and 50% infill percentage of PET and PLA materials using a three-dimensional printer manufactured as a prototype. Using the obtained samples, uniaxial tensile tests, hardness and surface roughness values were measured. As a result of the measurements, the hardness values of PET and PLA materials were directly related to the infill percentage of the material, and the hardness of the materials increased as the filling percentage increased. It was observed that roughness and tensile values of PLA and PET materials were inversely related to each other and roughness and tensile strength values were observed in the opposite direction from 30% infill percentage to 10% and 20% infill percentage.
  • Küçük Resim Yok
    Öğe
    Production and characterization of ceramic materials in three-dimensional printer
    (Springer Heidelberg, 2018) Evlen, Hatice; Caliskan, Aydin; Demirkol, Nermin
    Along with the developing technology, ceramic printers that can produce with ceramic materials as well as plastic materials started to enter our lives in 3D printers. In this study, 3D Cartesian type ceramic printer designed and prototype were performed. To investigate the effect of filling ratio and sintering temperature on the characteristic properties of ceramic samples, five different filling ratios [10%, 20%, 30%, 40%, and 50%] were used. White clay material used for sample producing with 3D ceramic printer. As a result of these prints, the samples were sintered at 900 A degrees C, 950 A degrees C, and 1000 A degrees C. Subsequently, compression strength, water absorption, density tests and SEM, XRD, EDX analysis were carried out in order to determine the characteristic properties of the samples. The results of the tests were compared with graphs. As a result, compression strength and density increased with the increasing sintering temperature and filling ratio, and porosity decreased as seen in SEM analysis. It was seen in XRD and EDX analysis that the Al2SiO5 peaks intensity increased with increasing sintering temperature.