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2002 |
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Assessment of Wood Surface Roughness:
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In the current study, the surfaces of two
species of hardwood were sanded with abrasive
papers of several grit numbers. Two three-dimensional
parameters describing these surfaces, one
for the distribution of roughness-profile
peaks, the other for the relative area of
roughness-profile peaks above the threshold
height, were compared with their tactile
roughness. The parameters were obtained from
roughness profiles determined by the robust
Gaussian regression filter (RGRF) using seven
cut-offs. There has been a good correlation between
tactile roughness and these parameters determined
from irregularities which were higher
than 10 or 15 µm. The coefficients
of determination between Arp and tactile
roughness showed maxima at cut-offs of 2.5 to
16.0 for all cutting levels except 0
µm. |
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