MORE | Spring 2024

Volumetric 3D Printing Optimization with Dual Wavelength Polymerization

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Volumetric 3D printing technology is poised to become a promising avenue for rapid and efficient fabrication of intricate structures. In this forthcoming study, the focus will be on enhancing the quality and efficiency of 3D printed objects using dual wavelength polymerization. The investigation will center on optimizing the printing process, with a particular emphasis on improving surface quality, controlling resin curing, and achieving optimal growth rates. To achieve these goals, several key factors will be explored. The incorporation of inhibitors into the resin to achieve a smoother surface finish through the controlled inhibition of polymerization will be investigated. Additionally, the effects of varying inhibitor and initiator concentrations, fine-tuning the curing process, will be analyzed. The influence of different UV and blue light intensities will be explored, allowing for the achievement of the most optimized printing results by controlling the resin’s polymerization kinetics.Moreover, the impact of parameters like focal distance and the speed of the linear actuator for both UV and blue light sources on the growth rate of the printed part will be examined. This investigation will provide insight into the interdependencies between these parameters and their effects on the printing process. In parallel, the challenges associated with printing overhang structures will be addressed, optimizing print times while preserving structural integrity by experimenting with support structures, print orientation, and other variables. Overall, the findings will contribute to the advancement of volumetric 3D printing technology, offering valuable guidance to enhance the quality, efficiency, and versatility of 3D printing for applications in diverse industries.

Student researcher

Sheefali Ajay Balapure

Mechanical engineering

Hometown: Pune, Maharashtra, India

Graduation date: Spring 2024