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Journal of Laser Applications / Volume 11 / Issue 3

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J. Laser Appl. 11, 119 (1999); http://dx.doi.org/10.2351/1.521891 (9 pages)

Cutting performance of a chemical oxygen-iodine laser on aerospace and industrial materials

Aravinda Kar1, David L. Carroll2, William P. Latham3, and James A. Rothenflue3

1Mechanical, Materials and Aerospace Engineering, Center for Research and Education in Optics and Lasers (CREOL), University of Central Florida, Orlando, Florida 32816-2700
2Aeronautical and Astronautical Engineering Department, University of Illinois at Urbana-Champaign, 306 Talbot Lab, 104 S. Wright St., Urbana, Illinois 61801
3Air Force Research Laboratory, Directed Energy Directorate, 3550 Aberdeen Avenue SE, Kirtland Air Force Base, New Mexico 87117-5776

(Received 11 July 1998; accepted 01 February 1999)

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 and measured to be approximately 0.24 mm. The new aluminum cut was of good kerf edge quality. These COIL cutting data are compared with an existing theoretical laser cutting model. Using thermophysical data for aluminum, titanium, 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. © 1999 Laser Institute of America.

© 1999 Laser Institute of America

KEYWORDS and PACS

Keywords

laser beam machining, cutting, metallurgical industries, aluminium, titanium, chromium alloys, nickel alloys, copper, chemical lasers, oxygen, iodine, laser beams, laser cavity resonators, laser cutting, materials processing, aerospace materials, chemical oxygen-iodine laser, COIL

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.2351/1.521891

PUBLICATION DATA

ISSN

1042-346X (print)  

Publisher

$abstract.society.value is a Member of CrossRef Laser Institute of America


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