Abstract
In this paper, we present a design-for-manufacturing approach of an aerosol-on-demand (AoD) jet-printhead using fluid dynamical modelling and simulation as well as experimentally determined parameters for modelling of the aerosol spray. Our AoD jet-printhead concept uses ultrasonic excitation to atomise small amounts of ink directly in the printhead. This allows both on-demand operation of the printhead and free rotational movement of the printhead in space during the printing process. Hydrodynamic focusing of the aerosol is achieved by an inflowing sheath gas in conjunction with a converging nozzle. A preliminary study is being carried out using computational fluid dynamics (CFD) to validate the operation of the concept and to find a design-for-manufacture, which is realised using the facilities of our in-house workshop.
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Ungerer, M., BenÃtez, J.L., Zeltner, D., Wenka, A., Gengenbach, U., Sieber, I. (2023). Modelling and Design-for-Manufacturing of an Aerosol-on-Demand Jet-Printhead. In: Wagner, G., Werner, F., De Rango, F. (eds) Simulation and Modeling Methodologies, Technologies and Applications. SIMULTECH 2022. Lecture Notes in Networks and Systems, vol 780. Springer, Cham. https://doi.org/10.1007/978-3-031-43824-0_1
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