Desenvolvimento de um sistema de aquecimento por radiação com lâmpadas infravermelhas para utilização em manufatura aditiva

Abstract

In the modern manufacturing process research for new materials and different manufacturing methods has intensified with the purpose of increasing production, quality and easy of assembly of parts more complex. One of these technologies is 3D Printing, also known as Manufacturing Additive, which began to emerge in the 1980s with the purpose of producing prototypes three- dimensional, and currently joined in the final manufacture of products through the physical creation of a three-dimensional digital model depositing successive layers of material, until obtaining the finished piece. Despite already although there are several types of 3D printing, they are all based on the same principle of deposition by layers, but is constantly modernizing, only the material deposited varies. In this context, the present research aims to investigate the effect of temperature on the mechanical strenght and surface quality characteristics of parts printed using the FPM (Fused Pellet Modeling) technique, using the ABS (acrylonitrile butadiene styrene) polymer. To this end, a still unusual low-cost complementary heating system was developed using infrared lamps integrated into a large-scale 3D printing manufacturing cell. The main objective is to verify how additional temperature can inprove the mechanical resistance and surface quality of large-volume parts produced. Also, as the part is being built, sensors read the temperature of the part in real time, and via wireless connection, the values of these measured temperatures are sent to a data recorder, which is a computer mounted remotely near the manufacturing cell, where they can be analyzed in real time or later, in the form of tables or graphs.