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Proceedings Paper

Cutting performance of a chemical oxygen-iodine laser on aerospace and industrial materials
Author(s): W. Pete Latham; Kip R. Kendrick; James A. Rothenflue; Aravinda Kar; David L. Carroll
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Paper Abstract

A chemical oxygen-iodine laser (COIL) was used for cutting aluminum, titanium, inconel and copper plates. The laser was operated with a stable resonator having an intracavity aperture to produce a circular COIL beam with very few transverse modes. The multimode focal spot diameter was calculated to be 0.24 mm. The new aluminum cut was of particularly high kerf edge quality. These COIL cutting data are compared with an existing theoretical laser cutting model. Using thermophysical data for aluminum, titanium,l inconel and copper, this theory agrees very well with the data. To test the versatility of the model, the effects of different assumptions are examined; different assumptions produced very little effect on model predictions at high cutting speeds and a small difference at very slow cutting speeds. Overall, the theoretical model provides good agreement with experiments for a wide variety of metals.

Paper Details

Date Published: 14 January 2000
PDF: 5 pages
Proc. SPIE 3887, High-Power Lasers in Civil Engineering and Architecture, (14 January 2000); doi: 10.1117/12.375181
Show Author Affiliations
W. Pete Latham, Air Force Research Lab. (United States)
Kip R. Kendrick, Air Force Research Lab. (United States)
James A. Rothenflue, Air Force Research Lab. (United States)
Aravinda Kar, CREOL/Univ. of Central Florida (United States)
David L. Carroll, Univ. of Illinois/Urbana-Champaign (United States)

Published in SPIE Proceedings Vol. 3887:
High-Power Lasers in Civil Engineering and Architecture
Sadao Nakai; Lloyd A. Hackel; Wayne C. Solomon, Editor(s)

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