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Proceedings Paper

Theoretical Investigations Of Instabilities In Laser Gas Cutting
Author(s): G. Simon; U. Gratzke
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Paper Abstract

A simple model for reactive gas laser cutting is presented. A thin metallic film under laser irradiation in an oxidizing atmosphere is considered. The stability of the diffusion-controlled growth of an oxide layer with external cooling of the system is investigated in terms of nonlinear point-system dynamics. Depending on the material and input parameters the system can exhibit limit cycles. Instabilities of this kind can be sources for striations on the cutting surface.

Paper Details

Date Published: 26 October 1989
PDF: 7 pages
Proc. SPIE 1132, High Power Lasers and Laser Machining Technology, (26 October 1989); doi: 10.1117/12.961582
Show Author Affiliations
G. Simon, Technische Universitat Braunschweig (Germany)
U. Gratzke, Technische Universitat Braunschweig (Germany)

Published in SPIE Proceedings Vol. 1132:
High Power Lasers and Laser Machining Technology
Michel Gaillard; A. Quenzer, Editor(s)

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