高体积分数SiCp/Al复合材料铣削残余应力有限元模拟  

Finite Element Simulation of Residual Stress on Milling of SiCp/Al Composite with High Volume Fraction

作　　者：张德光[1] 周丽[1] 丁昊[1] 王唱舟 

机构地区：[1]沈阳理工大学,辽宁沈阳110159

出　　处：《材料科学与工程学报》2015年第2期288-292,297,共6页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(51175353)

摘　　要：高体积分数碳化硅颗粒增强铝基(SiCp/Al)复合材料具有优良的综合物理力学性能,其难加工性制约着该材料的应用与发展,切削加工产生的表面残余应力严重影响了工件的结构和尺寸精度稳定性。为了研究高体积分数SiCp/Al复合材料的铣削加工表面残余应力,采用有限元分析软件ABAQUS建立了基于正交切削的平面应变模型,并对建立的宏观等效模型进行模拟分析。在模拟结果中,分析并得出了不同切削速度和每齿进给量对工件加工表面残余应力的影响规律以及沿工件层深方向的残余应力分布情况。Silicon carbide particle reinforced aluminum （SiCp/Al） composites with high volume fraction has excellent comprehensive physical and mechanical properties, but the difficulty of machining restricts the application and development of the material, and the surface residual stress caused by machining seriously affects the structure stability and dimensional accuracy of workpiece. In order to study the surface residual stress on milling of the SiCp/A1 composites, the finite element analysis software ABAQUS was used to establish a plane strain model based on orthogonal cutting and the macroscopic equivalent model was eventually analyzed. According to the simulation results, influence rules of machining surface residual stress with different cutting speeds and feed per tooth and residual stress distribution along the depth direction of the workpiece layer were acquired.

关 键 词：SICP/AL复合材料 有限元分析 切削速度 每齿进给量 表面残余应力 

分 类 号：TB331[一般工业技术—材料科学与工程]