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作 者 ：管宁

期 刊 ：林业科学 1992年 28卷 2期 页码：146-152

关键词：木材切削阻力；切削厚度；刀具前角；木材含水率；针叶树材；

Keywords:Wood cutting resistance, Chip thickness, Knife rake angle, Wood moisture content, Coniferous woods,

摘 要 ：对11种针叶树材在0-90、90-0和90-90三个切削方向的高速直角自由切削的试验研究表明:1)切削厚度、刀具前角和木材含水率对主切削力影响的基本趋势,各树种基本一致,但定量考察有一定的差异;2)三因素影响的阻力比值R_t、R_a和R_w在不同树种中变异不大;3)三因素对切削阻力的影响存在一定的交互作用,在不同切削方向,情况有所不同。

Abstract:The results from ofthogonal cutting tests in 0-90, 90-0, 90-90 directions for 11 coniferous woods showed that: 1) the effects of chip thickhess, knife rake angle, and wood moisture content on the main cutting forces for various species were basically identical, but quantitatively there existed certain variations; 2) the variations of the ratios Rt, R₂, and R_w expressing respectively the effects of chip thickness, rake angle, and moisture content were not significant among various species; 3) there were certain interactions among the effects of the three factors, which varied in different cutting directions.

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