摘要
针对高速深孔BTA钻削系统加工过程中的排屑难题,引入振动钻削,利用ANSYS FLUENT对普通BTA钻削排屑通道进行流体的压力仿真分析,优化DF系统,得出分别控制油压的方法。给刀具施加一个轴向周期振动,实现变切厚钻削;DF系统利用喷吸作用加大排屑动力。将刀具的振动钻削及优化后的DF系统相结合,不仅有效地控制了切屑的尺寸大小,提高了加工内孔表面的质量,还减小了高压油在切削过程中的压力降,增加了钻削系统的稳定性,从而有效实现高效排屑。
For chip removal problems in the process of high-speed and deep-hole BTA drilling system,we introduce vibration drilling and do the fluid pressure simulation analysis for ordinary BTA drilling chip channel by the ANSYS FLUENT to optimize the DF system,which achieves the method of separately controlled hydraulic.The tool is applied to an axial cycle vibration to achieve variable thickness of chip.The DF system utilizes suction to increase the power of chip removal.The combination of the vibration drilling of the tool and the optimized DF system not only effectively controls the size of the chip,improves the quality of machining inner surface of the hole,but also reduces the pressure drop of the hydraulic pressure in the cutting process,increases the stability of the drilling system,so as to effectively achieve efficient chip removal.
出处
《制造技术与机床》
北大核心
2014年第10期94-97,共4页
Manufacturing Technology & Machine Tool
基金
国家国际科技合作专项项目:精密高效深孔加工关键技术合作研究(2013DFA70770)
关键词
深孔
高效排屑
振动钻削
负压抽屑
BTA
deep-hole
efficient chip removal
vibration drilling
suction chip removal
BTA
