INFLUENCE OF INFILL DESIGN ON COMPRESSIVE AND FLEXURAL MECHANICAL PROPERTIES OF FDM PRINTED PLA MATERIAL

Abstract

Today, one of the fastest growing manufacturing technologies is certainly additive manufacturing, where there are several different product manufacturing processes, and one of the most famous is FDM 3D printing process. From literature review, it can be concluded that many parameters affect the final mechanical properties of FDM printed materials. Also, one of the great advantages provided by this technology is the production of product materials with an infill structure, which brings several advantages such as: reduced time of production, reduced material consumption, lower product weight and generally more economical production. The aim of this study is to analyse the influence of infill design on the compressive and flexural properties of FDM printed material. In particular, the influence of infill pattern and density for PLA FDM printed material was analysed. Based on the results of the statistical analyses, it can be concluded that the infill pattern and density affect the compressive and flexural strength and modulus of PLA FDM printed material.