文献类型：期刊文献

中文题名：木材锯切锯齿锯料角对切向力和法向力的影响

英文题名：Effect of Radial Clearance Angle on Tangential Force and Normal Force in Wood Sawing

作者：李伟光[1,2] 张占宽[2]

第一作者：李伟光

机构：[1]中国林科院林业新技术研究所,北京100091;[2]中国林科院木材工业研究所,北京100091

年份：2019

卷号：33

期号：6

起止页码：19-23

中文期刊名：木材工业

外文期刊名：China Wood Industry

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：中央级公益性科研院所基本科研业务费专项资金“基于木材切削的刀具表面微织构减摩机理研究”(CAFYBB2018SZ015)

语种：中文

中文关键词：木材锯切;锯齿;侧刃;锯料角;切向力;法向力

外文关键词：wood sawing;sawtooth;side edge;radial clearance angle;tangential force;normal force

分类号：TS643;S781.6

摘要：采用开式和闭式切削对比方式,对不同锯切条件下侧刃参数中锯料角对切向力和法向力的影响规律进行研究,为刀具设计和加工参数的合理设置提供依据。研究发现:锯齿侧刃产生的力占总切向力的4.6%~20.2%,以侧刃切向力为主。当锯料角增加或切削厚度减小时,侧刃力占比呈减少趋势;随切削速度增加,侧刃切向力增大,但切削速度对侧刃法向力的影响不明显。在相同锯料角条件下,横向切削时的侧刃切向力最大。
In this paper,influence of radial clearance angle of the sawtooth side edge in closed cutting and open cutting on the tangential force and normal force in different sawing conditions were evaluated.It was found that the tangential force which accounted for 4.6% to 20.2% of the total tangential force was the main force from the side edge while the normal force had no obvious changes.When the radial clearance angle increased or the cutting thickness decreased,the side edge cutting force decreased.The tangential force increased with increased cutting speed which had no obvious influence on the normal force.With the same radial clearance angles,the tangential force from the side edge in transverse cutting showed the biggest.