摘要
单刃螺旋立铣可视为斜角切削,基于等效平面法分析切削过程更符合斜角切削特性。对斜角切削的二维正交建模方式进行优化,提出了基于等效平面的二维建模方法,在等效平面上将三维斜角切削转化为二维正交切削:推导出等效平面内刀具等效参数,建立基于等效平面的二维正交模型。将其仿真结果与基于主剖面的二维模型的仿真结果进行对比,并结合以往文献中基于主剖面的二维模型的仿真值与试验值进行对比分析,通过研究表明,基于等效平面的二维建模方法可适当提高斜角切削的二维仿真结果的精度,因此,等效平面法可为斜角切削二维建模的优化提供参考。
Single blade helix end milling can be regarded as oblique cutting, analyzing the cutting process based on equivalent plane method is more in hue with the characteristic of oblique cutting . In the equivalent plane, the oblique cutting is converted into two dimensional orthogonal cutting：the equivalent rake angle,equivalent clearance angle,equivalent cutting edge radius are deduced, the tool parameters obtained from the formula are used in the two dimensional model, and the two dimensional orthogonal model based on the equivalent plane is established. The simulation results are compared with the simulation results of the two di- mensional orthogonal model based on the main section, it is found that there are some differences in the cutting force and chip morphology between the two models ,the results show that converting oblique cutting into two dimensional orthogonal cutting base on equivalent plane will affect the accuracy of the simulation results. The modeling method based on equivalent plane can provide a reference to the optimization of 2D simulation modeling of oblique cutting.
作者
王伏林
肖珞琼
陶琪
张帅
Wang Fulin, Xiao Luoqiong, Tao Qi, Zhang Shuai(College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, Chin)
出处
《现代制造工程》
CSCD
北大核心
2018年第3期108-114,148,共8页
Modern Manufacturing Engineering
基金
湖南省自然科学基金项目(14JJ7094)
难加工材料高效精密加工湖南省重点实验室开放基金项目(E21635)
关键词
等效平面
刀具等效参数
二维正交模型
斜角切削
有限元仿真
the equivalent plane
effective parameters of cutter
two dimensional orthogonal model
oblique cutting
finiteelement simulation
作者简介
王伏林，副教授，博士，主要从事数字化制造、工程机械再制造等研究。;肖珞琼，通信作者，硕士研究生，主要研究方向为高速铣削加工性能研究。E-mail115116302096@163．com
