Thermal three-dimensional lithography in thermoset resins using CO2 laser

Marco A. F. Scarparo; Mucio L. Barros; Alvin E. Kiel; Edgardo Gerck

doi:10.1117/12.180832

21 July 1994 Thermal three-dimensional lithography in thermoset resins using CO₂ laser

Marco A. F. Scarparo, Mucio L. Barros, Alvin E. Kiel, Edgardo Gerck

Proceedings Volume 2125, Laser Techniques for Surface Science; (1994) https://doi.org/10.1117/12.180832
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

This work presents a new method to produce 3D structures, using a CO₂ laser and thermosensitive resins. This method is called thermal stereolithography and is based on the spatially selective thermal curing of a resin, a filling material and a catalyst. The results obtained with a physical model for the resin system indicates that filling material must be added to control a pressure wave that is thermally induced. A resolution of 0.1 mm was achieved for epoxy and polyester resins. The successive layering of a laser scanned spot can produce 3D solid structures out of a high viscosity liquid.

Citation Download Citation

Marco A. F. Scarparo, Mucio L. Barros, Alvin E. Kiel, and Edgardo Gerck "Thermal three-dimensional lithography in thermoset resins using CO₂ laser", Proc. SPIE 2125, Laser Techniques for Surface Science, (21 July 1994); https://doi.org/10.1117/12.180832

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