微观状态SiCp/Al复合材料铣削残余应力模拟分析  

Simulation Analysis of Residual Stress in Milling of SiCp/Al Composite with Microscopic State

作　　者：周丽[1] 张德光[1] 王唱舟 刘丹[1] 

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》2016年第2期287-291,共5页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(51175353)

摘　　要：为了获得更高精度的高体积分数SiCp/Al复合材料铣削加工表面残余应力数据,采用有限元分析软件ABAQUS建立了基于正交切削的微观平面应变模型。复合材料两相材料属性被分别定义,改善了在宏观状态下整体定义材料属性的精度缺陷,并对其微观状态切削残余应力产生过程进行模拟分析。分析并得出了不同切削参数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。结果表明切削速度和每齿进给量对SiCp/Al复合材料已加工表面残余应力有着相似的影响规律,但每齿进给量的影响作用较为显著。In order to get a higher accuracy of surface residual stress during milling of high volume fraction SiCp/ Al composites,the finite element analysis software ABAQUS was used to establish a microplane strain model based on orthogonal cutting.The properties of two-phase composite material were defined respectively,which thus improved the accuracy of the defect in the macroscopic material properties defined as a whole,and the development of residual stress with microscopic state was eventually analyzed.Influence rules of machining surface residual stress with different cutting parameters and residual stress distribution along the depth direction of the workpiece layer were acquired.The results show that the cutting speed and feed per tooth have similar influence rules on machining surface residual stress of SiCp/Al composites,but the influence of feed per tooth is relatively significant.

关 键 词：SICP/AL复合材料 有限元分析 微观状态 切削参数 表面残余应力 

分 类 号：TB331[一般工业技术—材料科学与工程]