Mechanical, Physical, and Wear Properties of 3D Printed Polyactic Acid Materials

摘要

The objective of this paper is to study the mechanical, physical, and wear properties of the 3D printed Polylactic acid (PLA) materials. Tensile Strength, Modulus, and Ductility are investigated as a function of the infill percentage and the printing direction. Shioe D hardness versus infill percentage was investigated. Weight loss versus rolling contact time was investigated to measure the wear properties of the parts. The 3D printed parts have shown a great influence by the infill percentage. Such observation was not found in terms of printing direction. The weight loss due to rolling contact was a function of rolling contact time.