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Proceedings Paper

Surface absorptance in CO2 laser steel processing
Author(s): L. Covelli; I. de Iorio; V. Tagliaferri
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Paper 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.

Paper Details

Date Published: 1 February 1991
PDF: 6 pages
Proc. SPIE 1397, 8th Intl Symp on Gas Flow and Chemical Lasers, (1 February 1991); doi: 10.1117/12.25914
Show Author Affiliations
L. Covelli, Istituto Macchine Utensili (Italy)
I. de Iorio, Univ. di Napoli (Italy)
V. Tagliaferri, Politecnico di Milano (Italy)


Published in SPIE Proceedings Vol. 1397:
8th Intl Symp on Gas Flow and Chemical Lasers

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