文献类型：期刊文献

中文题名：TC4钛合金细长轴超声振动车削力对比分析

英文题名：Comparative analysis of ultrasonic vibratory turning forces on TC4 titanium alloy slender shafts

作者：刘爱军 邹书航 周知进

机构：[1]贵州理工学院工程训练中心,贵州贵阳550025;[2]广西科技大学机械与汽车工程学院,广西柳州545616

第一机构：贵州理工学院工程训练中心

年份：2026

期号：3

起止页码：83-89

中文期刊名：制造技术与机床

外文期刊名：Manufacturing Technology & Machine Tool

收录：;北大核心:【北大核心2023】；

基金：国家自然科学基金项目(51465009);贵州省科学技术基金重点项目(黔科合[2018]1407)。

语种：中文

中文关键词：钛合金细长轴类零件;超声振动切削;切削参数;主切削力;径向切削力

外文关键词：titanium alloy slender shaft parts;ultrasonic vibratory cutting;cutting parameters;main cutting force;radial cutting force

摘要：TC4钛合金细长轴类零件属于典型的难加工材料零件,其加工过程中存在切削力大,导致切削区域温度急剧上升,刀具磨损加剧等问题,且因刚度相对较低,在切削力作用下更容易发生弯曲变形等。针对上述加工困难的问题,首先建立有限元仿真模型,分析超声参数对细长轴车削受力变形分析的影响,并在此基础上进行超声振动车削试验。结果表明,随着切削深度不断增大,切削力随之增加。到一定位置时,前刀面与切屑之间的摩擦发生逆转,使得切削力反方向变化;二维超声振动车削时,超声频率为30 kHz时主切削力变化幅值明显高于20 kHz。但在相同情况下径向切削力在超声频率为20 kHz时的变化幅度明显大于30 kHz,最大径向切削力相差14.81 N;三维振动车削在提高切削力稳定性方面强于二维超声振动车削;在切削速度为15~25 m/min时,TC4钛合金细长轴的主切削力随切削速度的增加而增大,主切削力随着进给量的增大而增大。通过对比两种加工方式可知,切削参数在一定范围内,两种超声振动车削主切削力随切削参数的改变趋势基本一致。研究结论可为超声振动辅助加工技术的应用提供理论支撑。
Titanium alloy slender shaft parts belong to the typical difficult-to-machine material parts.Turning process would not only exist cutting force,cutting temperature,tool wear serious problems,there would be relatively low stiffness,and cutting force under the action of bending deformation was prone to such problems.Based on the finite element simulation model,the ultrasonic parameters were analyzed to carry out ultrasonic vibration turning experiments on the basis of the analysis of the force and deformation of the slender shaft turning.The results showed that with the increasing depth of cut,the cutting force increases.At a certain position,the friction between the front tool face and the chip reversed,which makes the cutting force change in the opposite direction.Two-dimensional ultrasonic vibration turning,the amplitude of the change of the main cutting force when the ultrasonic frequency was 30 kHz obviously greater than 20 kHz,but in the same case the radial cutting force in the ultrasonic frequency of 20 kHz was obviously greater than the amplitude of the change of the 30 kHz,and the maximum difference in the radial cutting force was 14.81 N.Three-dimensional vibratory turning was stronger than two-dimensional ultrasonic vibratory turning in improving the stability of cutting force.Within the scope of cutting speed of 15?25 m/min,the main cutting force of TC4 titanium alloy slender shaft increased with the increase of cutting speed,and the main cutting force increased with the increase of feed.By comparing the two processing methods,it can be found that the two ultrasonic vibration turning main cutting force with the cutting parameters of the change trend were basically the same.The results will provide theoretical support for ultrasonic vibration assisted machining.