The Efficiency of Manufacturing 3D Printed Part by Using Resin Polymer

¹ Mechanical Engineering, State University of Malang, Malang, 65145, Indonesia
² Mechanical Engineering, National Central University, Taoyuan City, 320, Taiwan

^* Corresponding author: redyarsa.dharma.ft@um.ac.id

Abstract

The strength of 3D printed part is an important factor that must be considered before carrying out a product design. Moreover, manufacturing speed was also as key of successfully product design. The main focus of this study was to analyze the strength of 3D printed part and reduce the time manufacturing processing for getting the optimal design. The specimen models were designed according to ASTM D368-IV standards and printed using a 3D printer device. During the printing process, the infill density was varied into two different types, 0% and 100%. Meanwhile the main material used as a base material was Polylactic Acid or PLA which has an initial diameter of 1.75 mm. Furthermore, time consumption of manufacturing process was recorded, whereas the strength of specimens was observed using universal tensile test machine. The specimen model, especially for infill density 0% were added the resin polymer before carry out the tensile test. The results showed that the highest [1]tensile strength was occurred on the specimen that had the infill density of 100% without any addition of resin polymer. Besides that, the time consumption (infill density 0%) was showed significantly reduce than specimen that had infill density of 100%