24 March 1989 Absorption Distribution On Idealized Cutting Front Geometries And Its Significance For Laser Beam Cutting
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Proceedings Volume 1020, High Power CO2 Laser Systems and Applications; (1989) https://doi.org/10.1117/12.950056
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany
Abstract
The absorption behaviour of metallic materials during laser beam cutting is examined under the presumption of a three dimensional cutting front model by applying the Fresnel formalism. The resulting theoretical influence of the laser beam parameters (power, mode, polarization, focal position and beam divergence) on the integral and homogeneity of the absorption distribution within the cutting front co-ordination system is described and compared with experimental results concerning the practicable cutting speed and the obtainable quality of the cut. Calculations of the power balance, considering also an estimation of heat losses, and appropriate cutting experiments are in accordance with the predicted average absorptivity of the idealized cutting front.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. Petring, D. Petring, P. Abels, P. Abels, E. Beyer, E. Beyer, } "Absorption Distribution On Idealized Cutting Front Geometries And Its Significance For Laser Beam Cutting", Proc. SPIE 1020, High Power CO2 Laser Systems and Applications, (24 March 1989); doi: 10.1117/12.950056; https://doi.org/10.1117/12.950056
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