Theoretical Investigations Of Instabilities In Laser Gas Cutting

G. Simon; U. Gratzke

doi:10.1117/12.961582

26 October 1989 Theoretical Investigations Of Instabilities In Laser Gas Cutting

G. Simon, U. Gratzke

Proceedings Volume 1132, High Power Lasers and Laser Machining Technology; (1989) https://doi.org/10.1117/12.961582
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

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.

Citation Download Citation

G. Simon and U. Gratzke "Theoretical Investigations Of Instabilities In Laser Gas Cutting", Proc. SPIE 1132, High Power Lasers and Laser Machining Technology, (26 October 1989); https://doi.org/10.1117/12.961582

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