摘要
通过对于经典颤振稳定性叶瓣图理论中X、Y两个方向频响函数相等假设对求解过程进行简化,对其特征方程进行深入解析求解与理论分析,得到极限切深与各个切削及材料参数关系的解析表达式及各个参数变化对其的影响规律。通过对极限切深求最小值得到安全切深解析表达式。将切深与切宽的乘积定义为铣削面积,并研究其对于铣削效率的影响。提出最大稳定铣削面积及切削参数优化方法,并在测量铝合金7050-T7451切削力系数后,以其为例进行了切削参数优化。
Analytic expression of critical axial depth of cut including all related process and material parameters and the effect of each parameters is obtained by further analytic solving and analyzing the characteristic equation in the theory of chatter stability lobes on the assumption that frequency response function in X and Y direction are equal. Then analytic expression of safe axial depth of cut is obtained by solving the minimum of the critical axial depth of cut. Effects of milling area on efficiency are studied,which is defined as product of axial and radial depth of cut. Stable milling area and optimize method are presented,which is used on aluminium alloy 7050- T7451 after whose cutting force coefficient is measured.
出处
《制造技术与机床》
北大核心
2016年第7期100-105,共6页
Manufacturing Technology & Machine Tool
基金
国家科技重大专项(2013ZX04001-011)
关键词
铣削
稳定性
叶瓣图
切削参数
优化
milling
stability
Lobes
process parameters
optimization
