A New Approach to Surface Tension According to the Surface Topographical Features in Laser Cutting Technology

Abstract:

Laser - cut quality is mainly characterized by a degree of accuracy in shape, size and also by surface layer conditions after cutting associated with surface roughness. An experimental determination of surface tension (or tensor components) of clean metal surfaces is very difficult and there is no direct method for its measurement. Attention was paid to numerical derivation of surface tensions according to the surface topographical features in laser cutting technology. The surface tensions and temperature dependencies of several metallic materials have been determined and confirmed by data obtained from the literature. It was found to be in very good agreement between our results and data from different sources in the literature.

• Periodical: Defect and Diffusion Forum (Volumes 334-335)
• Pages: 65-70
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.334-335.65
• Online since: February 2013
• Authors: Marta Harničárová, Jan Valíček, Jana Müllerová, Milena Kušnerová, Radovan Grznárik, Pavel Koštial
• Keywords: Flow Stress, Laser Cutting, Surface Tension, Surface Topography

References

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DOI: 10.3103/s1062873810050333