Numerical Simulation and Analysis of Electronic Jet Printing Injection Process

Abstract

Electrohydrodynamic (EHD) jet printing is a new type of Micro/Nano scale 3D printing, which uses a small diameter nozzle to obtain Micro/Nano scale droplets or wires in cone jet mode. Compared with the traditional jet printing technology, it is in cost, efficiency, controllable and print area has shown prominent advantages and potential. In this paper, the working mechanism of electro-fluid jet printing technology is studied and the multi-physical field coupling software COMSOL is used to simulate the jet printing state under the condition of no electric field and applied electric field. Finally, the influence law of jet printing under different process parameters is explored. The results show that the electro-fluid jet printing technology has the advantages of small droplet diameter, high resolution and precision, and wide application range. It provides the experimental basis for printing high quality devices in later stage.