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Madera y bosques
versão On-line ISSN 2448-7597versão impressa ISSN 1405-0471
Resumo
KIAEI, Majid e MOSAVI PALOJ, Rasoul. Surface roughness in relation to altitude of hornbeam wood. Madera bosques [online]. 2018, vol.24, n.1, e241964. Epub 23-Mar-2018. ISSN 2448-7597. https://doi.org/10.21829/myb.2018.241964.
Hornbeam wood (Carpinus betulus) is a native species from Iran and covers 33% of the commercial volume of Iranian woods. Surface quality of solid wood products is one of the most important properties influencing further manufacturing processes such as finishing or strength of adhesive joint. Wood surface roughness is affected by growth condition. The objective of this study was to evaluate effect of altitude index (400 m, 800 m and 1200 m) on the surface roughness of sanded hornbeam wood (C. Betulus). Surface characteristics of sanded specimens of hornbeam wood were made employing a stylus profilmeter. Average roughness (Ra), mean peak-to-valley height (Rz), root-mean square deviation of the profile (Rq), core roughness depth (Rk), reduced peak height (Rpk), and reduced valley depth (Rvk) roughness parameters were used to determine surface characteristics of the test pieces. Significant statistical differences were found among altitude indexes in reduced valley depth parameter and wood oven-dried density, but not for the other variables. This variable did not have significantly effect on other surface roughness parameters in hornbeam wood. The low altitude had a rougher surface than intermediate and high altitudes. There is no relationship between surface roughness parameter and wood oven-dried density.
Palavras-chave : growth condition; sanding; surface quality; sawn wood; wood density.