Surface absorptance in CO2 laser steel processing

L. Covelli; I. de Iorio; V. Tagliaferri

doi:10.1117/12.25914

1 February 1991 Surface absorptance in CO2 laser steel processing

L. Covelli, I. de Iorio, V. Tagliaferri

Proceedings Volume 1397, 8th Intl Symp on Gas Flow and Chemical Lasers; (1991) https://doi.org/10.1117/12.25914
Event: Eighth International Symposium on Gas-Flow and Chemical Lasers, 1990, Madrid, Spain

Abstract

To increase the absorptance of metal surfaces at the radiation of a CO2 laser beam in this work, a chemical etching technique has been used that allows the controlled modification of the superficial roughness. Absorptance tests have been performed in conditions close to real treatment using a CO2 c.w. 2.5 kW laser. The modification of the absorptance has been evaluated by means of the obtained effects on the treated surfaces. The achieved results show how the formation of microcavities on the analyzed surfaces allows a remarkable increase in the absorptance in real treatment conditions.

Citation Download Citation

L. Covelli, I. de Iorio, and V. Tagliaferri "Surface absorptance in CO2 laser steel processing", Proc. SPIE 1397, 8th Intl Symp on Gas Flow and Chemical Lasers, (1 February 1991); https://doi.org/10.1117/12.25914

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