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

›› 1992, Vol. 28 ›› Issue (2): 146-152.

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

管宁

中国林业科学研究院木材工业研究所

收稿日期:1990-10-18 修回日期:1900-01-01 出版日期:1992-03-25 发布日期:1992-03-25

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

Guan Ning

The Research Institute of Wood Industry, Chinese Academy of Forestry

Received:1990-10-18 Revised:1900-01-01 Online:1992-03-25 Published:1992-03-25

摘要/Abstract

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。

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

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.

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

管宁. 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[J]. , 1992, 28(2): 146-152.

Guan Ning. STUDIES ON THE EFFECTS OF CHIP THICKNESS,KNIFE RAKE ANGLE,AND WOOD MOISTURE CONTENT ON THE CUTTING RESISTANCE OF 11 CONIFEROUS WOODS[J]. , 1992, 28(2): 146-152.

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[5]	管宁. 15种阔叶树木材密度与切削阻力关系的研究[J]. , 1994, 30(1): 57-63.
[6]	杨家驹卢鸿俊. 国产重要树种木材特征及其出现频率的研究[J]. , 1993, 29(6): 537-542.
[7]	管宁. 木材切削阻力测定中刀具锋利程度的控制[J]. , 1993, 29(1): 42-48.
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