Development of carbon nanotubes-reinforced polyamide 12 composite powders for 3D printing

Ever since the introduction of Additive Manufacturing (AM) technology to this rapidly growing world, researches and studies on its practicality have been carried out so as to make sure that this technology is being made full use of in the development of countries. Over the decades, AM techniques have been evolving and until today it is the Selective Laser Sintering (SLS) Technique that is predominantly used over other available techniques. At the same time, more and more materials with wide range of properties have been developed for SLS technique. One of the most widely used materials is Polyamide 12. The primary objective of this project is to test the effects of parameters such as laser power, laser scan speed, and laser scan spacing have on the material properties of test samples made using Carbon Nanotubes-reinforced Polyamide 12 composite powder as well as the relationship between the mentioned parameters. The test samples are three-dimensional printed using EOSINT P 395 and the tensile testing experiment is done using Instron tensile testing machine version 5566. Young’s modulus, tensile stress and strength, tensile strain, and extension at break values of each test sample are obtained through the testing and the results are analysed using Design of Experiment (DOE) and Analysis of Variance (ANOVA) method.Bachelor of Engineering (Mechanical Engineering