Design-for-manufacture of a dual-chamber nozzle for hydrodynamic focusing of the Aerosol-on-Demand jet-printhead

In this paper, we present the design of a dual-chamber nozzle (DCN) for a newly developed concept of a printhead for Aerosol-on-Demand (AoD) jet-printing using fluid dynamic modelling and simulation. In this newly developed concept, the ink is atomized inside of the nozzle chamber by ultrasonic excitation. This enables on-demand operation of the printhead. Focusing is achieved by means of a sheath gas and the nozzle geometry. To achieve a collimated aerosol jet, a DCN is advantageous. Computational fluid dynamics (CFD) is used to perform the design layout of a DCN for AoD jet-printing, with the goal of finding a design-for-manufacture.