11种针叶树材的切削厚度、刀具前角和木材含水率对切削阻力影响的研究  

STUDIES ON THE EFFECTS OF CHIP THICKNESS,KNIFE RAKE ANGLE,AND WOOD MOISTURE CONTENT ON THE CUTTING RESISTANCE OF 11 CONIFEROUS WOODS

作　　者：管宁[1] 

机构地区：[1]中国林业科学研究院木材工业研究所

出　　处：《林业科学》1992年第2期146-152,共7页Scientia Silvae Sinicae

基　　金：国家自然科学基金

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。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, R_2, 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.

关 键 词：木材 切削阻力 切削厚度 刀具前角 

分 类 号：TS652[轻工技术与工程]