Inhaltszusammenfassung

Unlike other polymer processing methods, additive manufacturing processes do not necessitate pressure during layer consolidation. This study investigates the effect of high ambient pressure on layer consolidation during the FDM process and parts printed with no or minimal base support. To achieve high strength properties for 3D printed parts like injectionmoulded specimens, an experimental setup consisting of a 3D printer integrated into a customized Autoclave was set up. The autoclave has a...Unlike other polymer processing methods, additive manufacturing processes do not necessitate pressure during layer consolidation. This study investigates the effect of high ambient pressure on layer consolidation during the FDM process and parts printed with no or minimal base support. To achieve high strength properties for 3D printed parts like injectionmoulded specimens, an experimental setup consisting of a 3D printer integrated into a customized Autoclave was set up. The autoclave has a maximum pressure of 135 bar and a temperature of 185°C. 3D printing with PLA was performed at 1 bar, 5 bar, and 10 bar for three different parts designed with minimal base support, followed by ultrasonic and microscopy tests on printed specimens to analyze layer consolidation. The effect of pressure and temperature on 3D printed samples was studied. Autoclave preheating before printing and autoclave pressure during printing greatly improve layer consolidation. Geometry meteorology shows that the parts printed in ambient pressure have zero or minor dimensional changes. Ultrasonic tests show that layer consolidation improves with increasing ambient pressure.» weiterlesen» einklappen

Autoren

Klassifikation

DDC Sachgruppe:
Allgemeines, Wissenschaft