金属切削中的摩擦数值分析  

The digital analysis for friction in metal cutting

作　　者：刘胜永[1] 郝宏伟[2] 万晓航[2] 董兆伟[2] 

机构地区：[1]河北师范大学机械系,石家庄050031 [2]河北工业职业技术学院,石家庄050091

出　　处：《机械设计与制造》2007年第4期119-121,共3页Machinery Design & Manufacture

基　　金：河北省科技厅科研资助项目(05212105D);河北省教育厅科研资助项目(2002240)

摘　　要：影响刀屑之间摩擦的因素非常多,摩擦状况很难确定。为了研究摩擦对切削加工的影响,利用有限元分析软件,模拟了不同摩擦系数下直角切削加工过程,得出摩擦系数增大,变形系数增加,切削温度升高,已加工表面残余应力增大,减小切削中的摩擦有利提高金属切削加工质量,延长刀具的使用寿命。There are many factors which affect the friction status is very difficult to confirm, In order to study the friction how between tools and chips. The friction affects the cutting process, this paper used the FEM analysis software to simulate the orthogonal cutting process with different friction coefficient. It can be draw conclusions that the residual stresses of machincd surface are increasing with the raising of friction coefficient, the adding of deformation coefficient, the increasing of cutting temperature. The reduction of friction of cutting can do benefit for improving the machining quality and prolonging the working life of tools.

关 键 词：切屑 摩擦系数 变形系数 残余应力 

分 类 号：TG5[金属学及工艺—金属切削加工及机床]