Analysis The Effect Of Internal Geometry On The Mechanical Properties Of Acrylonitril Butadiene Styrene (ABS) Materials Prepared Using 3D Printing

Department of Mechanical Engineering, Faculty of Engineering, Khairun University, Indonesia

Abstract

The process of research and refinement of Fused Deposition Modeling 3D Printer, surely contains many variables and parameters with the aim of generating a 3D object with the results and the level of accuracy approaching its original design and can be applied as the expected design. In addition to the effect of printer type on the FDM method, the filament material used as a filler to print 3D objects certainly has different mechanical and physical characteristics, thus allowing for different object results for each different filament material. This research was conducted to determine the effect of internal variations of its geometry and dimensions on the mechanical properties of ABS using a 3D Printer. The internal geometries that are varied are triangle and honeycomb, with variations in thickness for each geometry are 1 mm and 2 mm, and variations in the axis of symmetry are 4.5 mm and 9 mm. The results showed that the control sample had tensile and bending strength results that matched the ABS filament datasheet reference. Objects with an internal geometry triangle in the size 4.5 mm and 2 mm of thickness have better tensile and bending strength than honeycomb geometry.