Study on Micro-extrusion Process using Non-circular Dies

Journal of Advanced Technology Research, Vol. 5, No. 1, pp. 12-16, Jun. 2020
10.11111/JATR.2019.5.1.012, Full Text:
Keywords: micro-extrusion, shaped filament, non-circular dies
Abstract

In present study, we developed micro-extrusion process using metallic non-circular dies, which fabricated by X-ray lithography, for polycapolacton filaments. The cross-sectional shape of extruded filaments was evaluated under various extrusion process conditions, and the process conditions are optimized to produce high-equality filaments. To evaluate the cross-sectional shape of filaments, new measurement factor, namely shape-ability was introduced. In addition, numerical analysis was conducted for the prediction of cross-sectional distortion of extruded filaments. Through the numerical analysis, the surface tension of polymer melt was determined as a dominant factor affecting the cross-sectional shape, so reliability of extrusion process was improved.


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Cite this article
[IEEE Style]
S. J. Park, "Study on Micro-extrusion Process using Non-circular Dies," Journal of Advanced Technology Research, vol. 5, no. 1, pp. 12-16, 2020. DOI: 10.11111/JATR.2019.5.1.012.

[ACM Style]
Sung Jea Park. 2020. Study on Micro-extrusion Process using Non-circular Dies. Journal of Advanced Technology Research, 5, 1, (2020), 12-16. DOI: 10.11111/JATR.2019.5.1.012.