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Abbreviated Journal Title

J. Appl. Phys.

Keywords

Temperature; Physics; Applied

Abstract

The natural shape of a typical chemical oxygen-iodine laser (COIL) beam is rectangular which means that the transverse cross section of the beam is rectangular. Such a rectangular beam can be split into two or more beams to carry out materials processing. The distance between such beams and the mode structure in the beams can affect the distribution of heat in the workpiece. This, in turn, affects the quality and efficiency of materials processing. A three-dimensional quasi-steady-state thermal model is presented in this article, and an expression for the temperature distribution during laser heating with single or multiple COIL beams having rectangular spots is obtained. Calculations are carried out for single or two rectangular COIL beams, The depth of heating is found to increase when the distance between two beams is less than a certain value.

Journal Title

Journal of Applied Physics

Volume

80

Issue/Number

2

Publication Date

1-1-1996

Document Type

Article

Language

English

First Page

667

Last Page

674

WOS Identifier

WOS:A1996UX15600008

ISSN

0021-8979

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