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Proceedings Paper

An ultra-short pulse laser lathe for axisymmetric micromachining of explosives
Author(s): Jeremy A. Palmer; Eric J. Welle
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Paper Abstract

Engineers have devised a novel ultra-short pulse laser lathe system for bulk micromachining of axisymmetric features in energetic material samples with three-dimensional cylindrical geometry. One hundred twenty femtosecond pulses from an 800-nm Ti:sapphire laser were utilized to machine hexanitrostilbene (HNS) rods with diameters less than 200 micrometers and greater than 5:1 aspect ratio without ignition and subsequent bulk combustion or detonation. To date, this work represents the smallest energetic material rod structures fabricated by this technology. Results indicate that surface roughness is dependent upon rotation speed and feed rate. Valuable explosive nano-particles were discovered, collected, and analyzed as a byproduct of fabrication.

Paper Details

Date Published: 13 March 2007
PDF: 7 pages
Proc. SPIE 6460, Commercial and Biomedical Applications of Ultrafast Lasers VII, 646015 (13 March 2007); doi: 10.1117/12.696608
Show Author Affiliations
Jeremy A. Palmer, Sandia National Labs. (United States)
Eric J. Welle, Sandia National Labs. (United States)


Published in SPIE Proceedings Vol. 6460:
Commercial and Biomedical Applications of Ultrafast Lasers VII
Joseph Neev; Stefan Nolte; Alexander Heisterkamp; Christopher B. Schaffer, Editor(s)

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