The Influence of CO2 Laser Beam Power Output and Scanning Speed on Surface Quality of Norway Maple (Acer platanoides)

The effects of varying the laser power output, from 5.6 to 8 W, and the scanning speed, from 100 to 500 mm/s of a CO2 laser beam on the surface quality of Norway maple (Acer platanoides) were investigated. The results showed that the roughness parameters (Ra, Rsk, Rt, Rk, Rpk, and Rvk) increased with increased laser power and decreased with decreased laser scanning speed. The roughness parameters had a linear trend with the laser power and a logarithmic correlation with the laser scanning speed. The best correlation was found for the composed parameter Rk + Rpk + Rvk, which may be the best descriptor of the laser action on wood, closely followed by Ra, Rk, and Rt. Rpk was the most affected parameter by the laser action on wood. The roughness parameters correlated best with the laser power for a laser scanning speed of 300 mm/s. An ablation effect on wood combined with protruding latewood bands visible as surface ridges was more pronounced with an increase in the laser power and with a decrease in scanning speed. The high laser powers (7.2, 7.6, and 8 W) combined with the lowest scanning speed, 100 mm/s, burned and visibly degraded the surface.

[1]  Chuangui Wang,et al.  Modeling and predicting of the color changes of wood surface during CO2 laser modification. , 2018 .

[2]  L. Gurău,et al.  The influence of CO2 laser beam power output and scanning speed on surface roughness and colour changes of beech (Fagus sylvatica) , 2017, BioResources.

[3]  M. Irle,et al.  Surface Roughness Evaluation Methods for Wood Products: a Review , 2017, Current Forestry Reports.

[4]  Mikuláš,et al.  INFLUENCE OF SELECTED LASER PARAMETERS ON QALITY OF IMAGES ENGRAVED ON THE WOOD , 2016 .

[5]  Jing Ouyang,et al.  Optimization of Laser Cutting Parameters for Recombinant Bamboo Based on Response Surface Methodology , 2016 .

[6]  T. Schnabel,et al.  Laser Treatment of Wood Surfaces for Ski Cores: An Experimental Parameter Study , 2013 .

[7]  P. Kyratsis,et al.  Industrial Applications of Laser Engraving: Influence of the Process Parameters on Machined Surface Quality , 2011 .

[8]  Ivan Kubovský,et al.  FT-IR STUDY OF MAPLE WOOD CHANGES DUE TO CO 2 LASER IRRADIATION , 2010 .

[9]  S. Sharif,et al.  Roughness models for sanded wood surfaces , 2010, Wood Science and Technology.

[10]  Juan Carlos Hernandez-Castaneda,et al.  Statistical analysis of ytterbium-doped fibre laser cutting of dry pine wood , 2009 .

[11]  Yi-Chung Wang,et al.  Effects of feed speed ratio and laser power on engraved depth and color difference of Moso bamboo lamina , 2008 .

[12]  D. Sandberg,et al.  Preparation of wood with pulsed UV-laser ablation for characterisation of the wood structure , 2007 .

[13]  S. Barcikowski,et al.  Characterisation and modification of the heat affected zone during laser material processing of wood and wood composites , 2006, Holz als Roh- und Werkstoff.

[14]  M. Irle,et al.  Filtering the roughness of a sanded wood surface , 2006, Holz als Roh- und Werkstoff.

[15]  Janez Možina,et al.  Optodynamic studies of Er:YAG laser interaction with wood , 1998 .