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Experimental study of the effect of a laser beam on the morphology of wood surfaces

Experimentelle Untersuchung des Einflusses eines Laserstrahls auf die Morphologie von Holzoberflächen
: Wust, H.; Haller, P.; Wiedemann, G.

Navi, P. ; Ecole Polytechnique Federale de Lausanne -EPFL-:
Fracture mechanics and micromechanics of wood and wood composites with regard to wood machining. Third International Symposium on Wood Machining 2007. Proceedings : 21 - 23 May, 2007, Lausanne (Switzerland)
Lausanne: Presses Polytechniques et Universitaires Romandes, 2007
ISBN: 978-2-88074-725-1
International Symposium on Wood Machining <3, 2007, Lausanne>
Fraunhofer IWS ()
Holz; Oberfläche; Morphologie; Laserstrahl; experimentelle Untersuchung; Modifizierung; Wellenlänge; Pulsdauer; Schmelzen; Rasterelektronenmikroskopie; Wasser

The study reports on fundamental aspects of modification of wood by using a laser beam and relates different parameters such as wavelength lambda, pulse duration tau(ind P), repetition rate F, and intensity E and focus to the surface morphology that presents melting processes that can be seen from microscopic observations (SEM). The penetration of water into laser treated surfaces is considerably suppressed. It is thought that the modification of wooden surfaces by laser beam represents a fundamental technology with many potential applications.