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Proceedings Paper

CFRP bonding pre-treatment with laser radiation of 3 µm wavelength: laser/material interaction
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Paper Abstract

Laser radiation of 3 μm wavelength was generated by frequency conversion of an industrial IR laser and applied in the context of CFRP bonding pre-treatment. Reinforced and non-reinforced epoxy resins were treated with this radiation varying the relevant parameters such as laser power or treatment time. The interaction between laser radiation of 3012 nm and 1064 nm wavelength and matrix resin was analyzed mechanically (e.g. ablation depth), optically (such as fiber exposure) and chemically (e.g. contamination removal). The results gathered show that, even with the small achievable pulse fluences, a sufficient treatment of the specimens and a sensitive removing of the contaminated layers are possible.

Paper Details

Date Published: 4 March 2016
PDF: 11 pages
Proc. SPIE 9736, Laser-based Micro- and Nanoprocessing X, 973614 (4 March 2016); doi: 10.1117/12.2209514
Show Author Affiliations
David Blass, Technische Univ. Braunschweig (Germany)
Stefan Kreling, Technische Univ. Braunschweig (Germany)
Sebastian Nyga, Fraunhofer-Institut für Lasertechnik (Germany)
Thomas Westphalen, Fraunhofer-Institut für Lasertechnik (Germany)
Bernd Jungbluth, Fraunhofer-Institut für Lasertechnik (Germany)
Hans-Dieter Hoffman, Fraunhofer-Institut für Lasertechnik (Germany)
Klaus Dilger, Technische Univ. Braunschweig (Germany)

Published in SPIE Proceedings Vol. 9736:
Laser-based Micro- and Nanoprocessing X
Udo Klotzbach; Kunihiko Washio; Craig B. Arnold, Editor(s)

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