Inhaltszusammenfassung

Unlike conventional polymer processing methods, additive manufacturing technologies do not necessitate the use of pressure during layer consolidation. The influence of high ambient pressure on layer consolidation and mechanical qualities during the FDM process is investigated in this work. To achieve high strength qualities for 3D printed parts as well as injection-moulded specimens, an experimental setup consisting of a 3D printer integrated within a customized Autoclave was put up. The auto...Unlike conventional polymer processing methods, additive manufacturing technologies do not necessitate the use of pressure during layer consolidation. The influence of high ambient pressure on layer consolidation and mechanical qualities during the FDM process is investigated in this work. To achieve high strength qualities for 3D printed parts as well as injection-moulded specimens, an experimental setup consisting of a 3D printer integrated within a customized Autoclave was put up. The autoclave has a maximum pressure of 135 bar and a temperature of 185°C. PLA 3D printing was done at three different pressures: 0 bar, 5 bar, and 10 bar. On printed specimens, tensile, flexural, and Charpy tests were performed, as well as the effects of pressure and temperature on 3D-printed materials. It has been demonstrated that autoclave preheating before printing and autoclave pressure during printing greatly improve layer consolidation. The pressure inside the autoclave causes closer contact between the layer surfaces, resulting in improved mechanical qualities like yield strength, Young's modulus, and impact strength. The value of the characteristics could be increased by 100%.» weiterlesen» einklappen

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Klassifikation

DDC Sachgruppe:
Allgemeines, Wissenschaft