THE EFFECT OF PROCESS TEMPERATURE CONDITIONS ON THE CHARACTERISTICS OF COMPOSITE PHOTOPOLYMER MATERIAL FOR LASER STEREOLITHOGRAPHY TECHNOLOGY

The article considers the results of a study of a composite material based on Clear Resin V4 photopolymer resin (Formlabs) and crushed cured waste with a particle size of 40–50 microns and a content of 10 wt. %. The influence of printing temperature (23 and 32 °C) and the time of additional treatment with ultraviolet (UV) radiation at a temperature of 60 °C on elastic strength characteristics and the structure of the final product. Increasing the printing temperature and UV treatment improves the elastic-strength properties, while an exposure time of more than 75 minutes is not advisable. Microscopic methods have been used to identify defects that occur when printing parameters are changed. Recommendations on the temperature conditions of the technological process are given.