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Proceedings Paper

3D CO2 laser synthesis from thermoreactive resin powder
Author(s): Vadim P. Veiko; A. G. Yakovlev
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Paper Abstract

Short review of 3-D Laser Synthesis (3D LS) or Rapid Prototyping (RP) is given, including three mali directions such as stereolithography (STL), laminated object manufacturing (LOM) and selective laser sintering (SLS). Comparative advantages and disadvantages of every one of them are discussed. The new direction of 3-D LS is suggested, combining advantages of STL and SLS. This direction based on the creation of 3D models from the resin's powder. The physical processes of the new technique similar with STL- process. In spite of the phase state of the initial material (powder) the mechanism of solidification has many skills of STL with viscous digomer. There are many new possibilities in the process with powder polymerization. One can use not mechanical devices (which are very complex) for powder deposition but electrostatic and so on. Some physical phenomena of powder solidification under the CO2-laser action are studied, as speed of the process, which is much higher than under the conventional heating and so on. The experimental results of the process investigation are discussed. In particular the chemical analysis of the solidificated model is made which confirm that initial powder under laser treatment gave perfect resin. Main advantages of the new methods are the cheapness of the initial material and good mechanical quality of models, which expands the field of application of models made with described powder.

Paper Details

Date Published: 22 December 1998
PDF: 7 pages
Proc. SPIE 3574, XII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (22 December 1998); doi: 10.1117/12.334407
Show Author Affiliations
Vadim P. Veiko, St. Petersburg Institute of Fine Mechanics and Optics (Russia)
A. G. Yakovlev, St. Petersburg Institute of Fine Mechanics and Optics (Russia)

Published in SPIE Proceedings Vol. 3574:
XII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference
Anatoly S. Boreisho; Gennady A. Baranov, Editor(s)

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