Effect of Infill Pattern and Lattice Structure on the Mechanical Properties of 3D Printed Metal Polylactide Filament

The purpose of this given research is to study the mechanical properties of the printed metal polylactide filament due to the recent growth of 3D printing technology, it had been widely used in many industries but there are some consequences influences the material properties of printed parts and causes anisotropy. The consequences mentioned are based on parameters that been involved in causing changes of the mechanical properties of printed specimen such as the infill pattern, infill density, printing temperature, surrounding temperature, printing orientation and printing speed. This paper will emphasise more on the infill patterns and choosing the better infill pattern for a printed material using copper metal polylactide filament (PLA) in terms of better strength. The strength of the printed material can be analysed using tensile test method according to ASTM D68-10 standards. so that Young’s Modulus can be evaluated based on stress and strain data that collected from each specimen that been tested. This experiment will be conducted twice using PLA and copper metal PLA whereby the PLA is used as a comparison towards copper metal PLA. Based on the experiment the optimum pattern that chosen is grid pattern at infill density of 60%.