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Proceedings Paper

Mathematical model for optimizing a laser-induced photopolymerization process
Author(s): Raja Nassar; Michael J. Vasile; James L. Maxwell
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Paper Abstract

Laser induced photo-polymerization is rapid prototyping technique for the manufacturing of high aspect ratio micro- mechanical parts. The process consists of UV laser-induced polymerization of multifunctional monomers. This photo- forming method has advantages of speed and economy over other methods used in the manufacturing of high aspect ratio microstructures. However, current photo-forming systems do not yet have the accuracy and resolution required for micro- mechanical fabrication. To achieve a system with high resolution, it is desirable to develop a predictive mathematical model that can be used in process optimization. In this study, we develop a mathematical model that predicts the laser beam pixel dwell time (or the scanning scheme) on the monomer layer for attaining uniform monomer conversion or solidification by which one can achieve dimensional accuracy and smooth surfaces of the microstructure.

Paper Details

Date Published: 3 September 1999
PDF: 9 pages
Proc. SPIE 3875, Materials and Device Characterization in Micromachining II, (3 September 1999); doi: 10.1117/12.360462
Show Author Affiliations
Raja Nassar, Louisiana Tech Univ. (United States)
Michael J. Vasile, Louisiana Tech Univ. (United States)
James L. Maxwell, Louisiana Tech Univ. (United States)

Published in SPIE Proceedings Vol. 3875:
Materials and Device Characterization in Micromachining II
Yuli Vladimirsky; Craig R. Friedrich, Editor(s)

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