摘要
为了开展超声振动辅助下304不锈钢微孔钻削实验研究,在分析超声振动微孔钻削机制的基础上,深入研究微细孔加工过程,保证微细孔加工精度。研究结果表明:钻削载荷过程形成钻入、稳定和钻出的3个阶段。超声波振动钻削力振幅较小,超声波振动钻削的稳态钻削力显著小于常规钻削方式。随着进给速度的增大使钻头受到的轴向作用力更大,形成更大的平均轴向力。在主轴转速5000 r/min及进给速度7 mm/min下超声波振动可以有效降低切削温度,钻削轴向力为1.28 N,比常规钻削方式减小了18.46%。
The experimental research on 304 stainless steel micro-hole drilling was carried out with the assistance of ultrasonic vibration,and based on the analysis of the mechanism of ultrasonic vibration micro-hole drilling,the micro-hole machining process was studied in-depth to ensure the micro-hole machining accuracy.The results show that the drilling load process consists of three stages:drilling,stabilizing and drilling out.The amplitude of ultrasonic vibration drilling force is small,and the steady drilling force of ultrasonic vibration drilling is significantly smaller than that of conventional drilling method.With the increase of feed speed,the axial force on the drill bit will be greater,resulting in a larger average axial force.At the spindle speed of 5000 r/min and the feed speed of 7 mm/min,ultrasonic vibration can effectively reduce the cutting temperature,and the drilling axial force is 1.28 N,18.46%less than the conventional drilling method.
作者
闵林锋
付炎杰
李峰
MIN Linfeng;FU Yanjie;LI Feng(Ruian College of Wenzhou Vocational and Technical College,Wenzhou 325035,China;College of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310014,China)
出处
《机械制造与自动化》
2025年第4期99-103,共5页
Machine Building & Automation
关键词
微孔钻削
不锈钢
超声振动
进给速度
表面质量
microhole drilling
stainless steel
ultrasonic vibration
feed speed
surface quality
