增强颗粒团聚分布SiCp/Al复合材料切削模拟研究  

Study on Cutting Simulation of SiCp/Al Composites With Reinforced Article Agglomeration Distribution

作　　者：谢朝雨 张旭 程耀天 林旭东 王若瑾 XIE Chaoyu;ZHANG Xu;CHENG Yaotian;LIN Xudong;WANG Ruojin(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201600)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海201600

出　　处：《宇航材料工艺》2024年第4期37-42,共6页Aerospace Materials & Technology

基　　金：国家自然科学基金(51775328)。

摘　　要：为了研究增强颗粒团聚分布对SiCp/Al复合材料切削加工过程的影响,建立了三种不同SiC颗粒团聚尺寸比的正交切削有限元模型,并对模型进行了验证。结果表明:随着颗粒团聚尺寸比的增大,锯齿状切屑连续性降低且形状更加不规则,相应地切削力的波动程度、平均值和峰值均增大。颗粒聚集区域的切削应力随着团聚尺寸比的增大而加剧。较大的颗粒团聚尺寸比会导致亚表面损伤深度和最大轮廓峰谷高度增加。In order to study the effect of reinforced particle agglomeration distribution on the cutting process of SiCp/Al composites,three orthogonal cutting finite element models with different SiC particle agglomeration size ratios were established and verified.The results show that with the increase of particle agglomeration size ratio,the continuity of sawtooth chip decreases and the shape becomes more irregular,and correspondingly the fluctuation degree,average value and peak value of cutting force increase.The cutting stress in the agglomeration area increases with the agglomeration size ratio increasing.Larger particle agglomeration size ratio leads to an increase in subsurface damage depth and maximum contour peak and valley height.

关 键 词：团聚分布 SICP/AL复合材料 有限元仿真 应力分布 亚表面损伤 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]