超声纵扭-低频扭转复合振动攻丝实验  

Ultrasonic longitudinal torsional and low frequency torsional compound vibration tapping experiment

作　　者：韩凤起 张德远[2] HAN Fengqi;ZHANG Deyuan(Intelligent Manufacturing Institute,Hebei Vocational University of Industry and Technology,Shijiazhuang 050091,China;School of Mechanical Engineering and Automation,Beihang University,Beijing 100191,China)

机构地区：[1]河北工业职业技术大学智能制造学院,石家庄050091 [2]北京航空航天大学机械工程及自动化学院,北京100191

出　　处：《北京航空航天大学学报》2024年第4期1077-1084,共8页Journal of Beijing University of Aeronautics and Astronautics

基　　金：中央引导地方科技发展资金(216Z1004G);河北省教育厅科学技术研究项目(ZD2020331);河北工业职业技术大学博士基金(zk202101)。

摘　　要：针对钛合金低频扭转振动攻丝效率偏低的问题,提出了超声纵扭-低频扭转复合振动攻丝方法。进行了超声纵扭振动攻丝实验、不同切削液的复合振功攻丝实验和变参数复合振动攻丝实验,研究复合振动攻丝的工艺效果及参数变化的影响规律。实验结果表明:超声纵扭振动增强了切削液的润滑效果,降低了攻丝扭矩,与普通连续攻丝相比,M3螺纹孔的超声纵扭振动攻丝可降低攻丝扭矩约18%;在所选参数范围内,与低频扭转振动攻丝相比,复合振动攻丝最大可降低攻丝扭矩约30%;复合振动攻丝降低攻丝扭矩的效果,随净切削量、主轴转速的增大和回退量的减小而降低。In view of the low efficiency of low frequency torsional vibration tapping of titanium alloy,the ultrasonic longitudinal torsional and low frequency torsional compound vibration tapping method was proposed.To investigate the process effect of compound vibration tapping and the influence rule of parameter change on it,three experiments were conducted in succession:the ultrasonic longitudinal torsional vibration tapping experiment,the compound vibration tapping experiment with different cutting fluids,and the compound vibration tapping experiment with variable parameters.The experimental results show that ultrasonic longitudinal torsional vibration enhances the lubricating effect of the cutting fluid and reduces the tapping torque.Compared with ordinary continuous tapping,the ultrasonic longitudinal torsional vibration tapping of M3 threaded holes can reduce the tapping torque by about 18%.Comparing compound vibration tapping to low frequency torsional vibration tapping,the tapping torque can be reduced by up to approximately 30%within the chosen parameter range.The effect of compound vibration tapping on reducing the tapping torque decreases with the increase of the net cutting amount,the spindle speed,and the decrease of the backward amount.

关 键 词：振动攻丝 超声纵扭振动 低频扭转振动 攻丝扭矩 切削液润滑 

分 类 号：TG62[金属学及工艺—金属切削加工及机床]