摩擦系数对微铣削加工的影响

2018-07-13

作者：许松，李文斌单位：太原理工大学

摘要：运用ABAQUS有限元分析软件对TC4进行仿真，建立了基于次摆线的二维铣削模型，分析了摩擦系数的变化对铣削力、温度及残余应力的影响。分析发现：随着摩擦系数的增大，铣削力增大，温度升高；当摩擦系数增大到0.4以上时增幅降低；残余应力随着摩擦系数的增大而增大，拉应力层会缓慢增加。

关键词：有限元仿真；微铣削；摩擦系数；铣削力；残余应力

中图分类号：TG54；TH117文献标志码：AInfluence of Friction Coefficient on MicromillingXu Song，Li Wenbin

Abstract:The ABAQUS finite element analysis software is used to simulate TC4，and a twodimensional milling model based on trochoid is established.The influence of friction coefficient on milling force，temperature and residual stress is analyzed.It is found that with the increase of the friction coefficient，the milling force increased and the temperature increased.When the friction coefficient increased to 0.4 or more，the increase is decreased.The residual stress increases with the increase of the friction coefficient，and the tensile stress layer increases slowly.

Keywords:finite element simulation；micromilling；friction coefficient；milling force；residual stress