摘要
为了探究超声振动车削过程中切削力和切削温度的变化规律,使用Third Wave Advant Edge切削仿真软件,基于POWER-LOW本构模型和ALE网格划分方法建立TC4钛合金车削加工的有限元模型,获得传统车削与超声振动车削的切削力和最高切削温度变化情况。结合超声振动车削中刀具切削速度和位移变化规律,对传统车削与超声振动车削的切削力和最高切削温度变化规律展开对比分析;探究超声振动车削中的工件进给速度、刀具振频和振幅对切削力的影响规律,实现各加工参数的最优组合,为实际加工提供参考。
As for the phenomenon that people do not master the change rule of the cutting force and temperature in the ultrasonic vibration turning processing, and by using the Third Wave AdvantEdge and adopting POWER-LOW constitutive model and ALE method of meshing, we established a finite element turning model of TC4 Titanium Alloy to obtain the cutting force curve and the temperature curve of ultrasanic assisted turning and conventional turning. Combined with the cutting speed and displacement of tool in ultrasonic vibration turning, we did the comparative analysis of cutting force and maximum cutting temperature between the ultrasonic assisted turning and conventional turning. At the same time, we did the analysis of the influence of vibration frequency, amplitude as well as feed rate of workpiece for the cutting force, and achieved the optimal ultrasonic vibration cutting parameters set.
出处
《机械设计与制造》
北大核心
2018年第2期164-166,170,共4页
Machinery Design & Manufacture
基金
国家自然科学基金资助项目(51305369)
中国博士后科学基金资助项目(2012M521708)
高等学校博士学科点专项科研基金新教师类资助课题(20130184120007)
中央高校基本科研业务费专项资金(SWJTU11CX023)资助
教育部重点实验室开放基金资助(JMTZ201605)
关键词
振动车削
有限元仿真
切削力
TC4钛合金
Vibration Turning
Finite Element Simulation
Cutting Force
TC4 Titanium AHoy
