Posouzení tahové pevnosti tvářených plastů

Abstract

This thesis focuses on comparing the mechanical properties of plastic materials produced by injection molding and 3D printing, specifically ASA material. First, basic information about plastics, their history, classification, and mechanical properties is provided. The history of 3D printing is then introduced, along with selected methods of this technology, including key parameters such as nozzle temperature, print speed, and layer thickness, which affect the quality of printed materials. In the practical part of the thesis, an experiment was conducted with the aim of comparing the mechanical properties of plastic samples made by injection molding and 3D printing. The samples were tested on a tensile testing machine, and their tensile properties and fracture characteristics were analyzed. The main focus was on comparing the mechanical strength and other properties between these two manufacturing technologies, with 3D printing being tested based on different infill parameters that influence the resulting mechanical properties. This thesis provides valuable insights into the optimization of 3D printing for ASA material and offers an overview of the differences between traditional manufacturing methods and modern additive manufacturing technologies. The results of the experiment can be useful not only for research but also for industrial applications requiring materials with high mechanical strength and weather resistance.