摘要
针对Ti6Al4V钛合金切削加工中的切削力与表面完整性问题,通过正交切削试验结合多参数动态分析(切削速度、进给速度、切削深度),揭示了切削参数对加工质量的影响规律。研究发现:切削力与进给速度、切削深度呈正相关,而与切削速度负相关;表面粗糙度(R a/R z)主要受进给速度主导,优化参数可将R a值降至0.4μm以下;表层残余应力分布与切削力变化趋势一致,高切削速度可减少表面缺陷。研究结果为航空航天领域钛合金零件的精密加工提供了参数优化依据,对降低加工能耗、提升表面质量具有实际指导意义。
Aiming at the problem of cutting force and surface integrity in cutting Ti6Al4V titanium alloy,the influence of cutting parameters on machining quality was revealed by orthogonal cutting test combined with multi-parameter dynamic analysis(cutting speed,feed speed,cutting depth).It was found that cutting force is positively correlated with feed speed and cutting depth,but negatively correlated with cutting speed.The surface roughness(R a/R z)is mainly dominated by the feed rate,and the R a value can be reduced to less than 0.4μm by optimizing the parameters.The distribution of surface residual stress is consistent with the trend of cutting force,and high cutting speed can reduce surface defects.The research results provide a basis for parameter optimization for precision machining of titanium alloy parts in aerospace field,and have practical guiding significance for reducing processing energy consumption and improving surface quality.
作者
张兴宇
关会英
刘启蒙
ZHANG Xingyu;GUAN Huiying;LIU Qimeng(School of Mechanical and Electrical Engineering,Jilin University of Chemical Technology,Jilin City 132022,China;School of Mechanical and Civil Engineering,Jilin Agricultural Science and Technology University,Jilin City 132109,China)
出处
《吉林化工学院学报》
2025年第7期82-88,共7页
Journal of Jilin Institute of Chemical Technology
关键词
切削力
残余应力
加工表面
粗糙度
cutting force
residual stress
finished surface
roughness
