超精密切削SiCp/Al复合材料力学性能仿真

2019-04-23

作者：王业甫1，李莉2，杨凯3 单位：1南京理工大学；2南京军区南京总医院博士后科研工作站；3中国人民解放军陆军航空兵学院

摘要：研究了超精密切削加工SiCp/Al复合材料的力学性能，运用ABAQUS有限元软件建立三维有限元模型，分析刀具前角和切削速度对切削力的影响。仿真和数据分析表明：平均主切削力随切削速度的增大而增大，随刀具前角的增大而减小；由于SiC颗粒的存在，切削时应力过大容易加快刀具磨损。

关键词：SiCp/Al复合材料；有限元；切削力

中图分类号：TG501.1；TH140.7；TB33文献标志码：ADOI：10.3969/j.issn.1000-7008.2019.04.017

Mechanical Properties Simulation of Ultraprecision Cutting on

SiCp/Al Composites

Wang Yefu，Li Li，Yang Kai

Abstract:This paper studies the mechanical properties of ultraprecision cutting SiCp/Al composites，and establishes a threedimensional finite element simulation model by using the finite element software ABAQUS to analyze the effects of tool rake，cutting speed on the cutting force.The results indicate that the cutting force increases with the increasing of cutting speed and decreases with the increasing of tool rake.Through analysing the stress cloud，the results show that the tool are worn easily for the large stress during cutting.