Direct‐write deposition of fine powders through miniature hopper‐nozzles for multi‐material solid freeform fabrication
Abstract
In this paper, we present a concept for multi‐material solid freeform fabrication of heterogeneous components. This concept features hopper‐nozzles designed for depositing thin layers of multiple patterned materials followed by selective laser sintering for consolidation to desired densities. Although prior work on the design of small‐scale nozzles for powder delivery is lacking, our design is guided by background theory for particle flow through industrial hoppers. Experimental guidelines for the delivery of powders in the 10 to 125 μm range from 0.5 to 2 mm hopper‐nozzle orifices are presented.
Keywords
Citation
Kumar, P., Santosa, J.K., Beck, E. and Das, S. (2004), "Direct‐write deposition of fine powders through miniature hopper‐nozzles for multi‐material solid freeform fabrication", Rapid Prototyping Journal, Vol. 10 No. 1, pp. 14-23. https://doi.org/10.1108/13552540410512499
Publisher
:Emerald Group Publishing Limited
Copyright © 2004, Emerald Group Publishing Limited