关键词: 木材切削阻力, 木材密度, 针叶树材

Abstract: The relationship between wood density and cutting resistance of 11 Chinese coniferous woods was studied. The main results obtained were: 1. The density-cutting correlation within the species was more significant in 90-90 cutting direction than in 0—90 and 90-0. The regression coefficient of the dellsity-cutting resistance relation within the species increased with an increase of the density of the species. 2. The density-cutting correlation among the species was more significant than that within the species. The regression coefficient of the relation among the species was close to the mean values of those within the species. 3. The effects of chip thickness, knife rake angle, and wood moisture content on the density-cutting resistance relation among the species showed a common tendency: the larger the mean value of the cutting resistance, the larger the regression coefficient. 4. Some phenomena were noted during the tests indicating certain characteristics of the scatter of the density-cutting resistance relation.

Key words: Wood cutting resistance, Wood density, Coniferous woods