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

W. Pete Latham; Kip R. Kendrick; James A. Rothenflue; Aravinda Kar; David L. Carroll

doi:10.1117/12.375181

14 January 2000 Cutting performance of a chemical oxygen-iodine laser on aerospace and industrial materials

W. Pete Latham, Kip R. Kendrick, James A. Rothenflue, Aravinda Kar, David L. Carroll

Proceedings Volume 3887, High-Power Lasers in Civil Engineering and Architecture; (2000) https://doi.org/10.1117/12.375181
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

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.

Citation Download Citation

W. Pete Latham, Kip R. Kendrick, James A. Rothenflue, Aravinda Kar, and David L. Carroll "Cutting performance of a chemical oxygen-iodine laser on aerospace and industrial materials", Proc. SPIE 3887, High-Power Lasers in Civil Engineering and Architecture, (14 January 2000); https://doi.org/10.1117/12.375181

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