钛合金顺铣和逆铣的有限元仿真对比分析  

Finite Element Simulation Analysis of Climb and Conventional Milling Titanium Alloy

作　　者：刘昂驰 宁立伟[1] 梁桂强 徐捷 Liu Angchi;Ning Liwei;Liang Guiqiang;Xu Jie

机构地区：[1]湖南工程学院,湖南省湘潭市411100 [2]大理大学工程学院,云南省大理市671000 [3]北京领航科工教育科技有限公司 [4]清华大学深圳国际研究生院

出　　处：《工具技术》2022年第1期32-37,共6页Tool Engineering

基　　金：湖南省科技计划项目(2013GK3028)。

摘　　要：为对比研究顺铣和逆铣方式对加工结果的影响,采用有限元仿真方法建立钛合金铣削三维仿真模型,同时以切削力、摩擦力、工件应力以及动能和塑性能等输出变量为评价标准,研究了不同铣削方式下仿真结果的差异。结果表明,逆铣的平均应力为800MPa,顺铣的平均应力为650MPa,逆铣的应力大于顺铣;在X轴方向上,逆铣切削力大于顺铣切削力,顺铣的摩擦力大于逆铣摩擦力;在Z轴方向上,顺铣的切削力大于逆铣切削力,逆铣的摩擦力大于顺铣摩擦力,逆铣的整体动能和塑性能大于顺铣。To investigate the climb and conventional milling on the result of the machining,the method of finite element simulation to establish 3D simulation model of titanium alloy milling is adopted.Meanwhile,the cutting force,friction force,stress of the workpiece,the kinetic energy,the plastic energy dissipation,and other output variables are selected to the evaluation standards,the simulation results under different milling method are studied.The results show that the average stress of conventional milling is 800MPa,and the average stress of climb milling is 650MPa,the stress of conventional milling is larger than climb milling.In the direction of the X,the conventional milling force is greater than the climb milling force,the climb milling friction force is greater than the conventional milling friction force,and in the direction of the Z,the climb milling force is greater than the conventional milling force.The conventional milling friction force is greater than the climb milling friction force;The overall kinetic energy and plastic energy of conventional milling are higher than climb milling.

关 键 词：顺铣 逆铣 切削力 摩擦力 切削能量 

分 类 号：TG54[金属学及工艺—金属切削加工及机床] TG501.3