摘要
针对球头铣刀已加工表面特有的"小凹坑"微单元结构,结合表面形貌几何参数对应的数学关系,求解了微单元特征参数及特征线表达式;结合实验结果修正了微单元特征参数并验证了其准确性,进而建立了曲面微单元三维仿真形貌。研究结果表明:修正后曲面微单元宽度相对误差为1.88%,长度相对误差为7.60%,验证了所建理论模型的准确性。
Aiming at unique＂small pits＂micro-units structure of ball-end milling machined surface,and combined with the mathematical relationship among surface topography geometric parameters,the characteristic parameters and characteristic line expressions of the micro-units were solved. According to the experimental results,the characteristic parameters of the micro-units were corrected and the accuracy was verified. Furthermore,the three-dimensional simulation shape of curved surface micro-units was established. The research results show that the width relative error of the modified surface micro-units is as1.88% and the length relative error is as 7.60%,which indicates that the theoretical model is more accurate.
作者
张为
都晓锋
程超
李鹏飞
ZHANG Wei;DU Xiaofeng;CHENG Chao;LI Pengfei(School of Mechanical Engineering,Harbin University of Science and Technology,Harbin,150080)
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2018年第13期1553-1559,共7页
China Mechanical Engineering
基金
国家自然科学基金资助项目(51205096)
关键词
球头铣刀
微单元
特征参数
曲面三维形貌
ball- end mill
micro - unit
characteristic parameter
three - dimensional shape of curvedsurface
