摘要
利用abaqus有限元软件对GNFs/Al-18Si-5Cu-Mg复合材料和过共晶Al-18Si合金进行有限元铣削仿真,在一定条件下进行切削试验,对比分析GNFs/Al-18Si-5Cu-Mg复合材料和Al-18Si合金的切削力特征。模拟显示,GNFs/Al-18Si-5Cu-Mg复合材料所受到的切削拉应力和压应力均低于Al-18Si合金所受切削应力,两种材料切削力时域曲线变化趋势与实验测试结果吻合。GNFs/Al-18Si-5Cu-Mg复合材料在特定条件下的切削力时域曲线变化明显较Al-18Si合金平缓,切削波动较小,说明在铝硅合金粉末中加入石墨烯纳米片有益于提高复合材料表面加工质量,较相同成分的合金材料切削加工性能获得改善。
Finite element milling simulations of graphene/Al-18Si composites and Al-18Si alloy were performed using abaqus software,and the cutting verification was carried out under the conditions of spindle speed 500~1500r/min,depth of cut 0.4~1.2mm,and feed rate 100mm/min to compare and analyze the graphene/Al-18Si composites and Al-18Si alloy.The simulations showed that the maximum Mises stresses on the graphene/Al-18Si composite and Al-18Si alloy were 432 MPa and 677 MPa,respectively,indicating that the tensile and compressive stresses on the graphene/Al-18Si composite were lower than those on the Al-18Si alloy,and the trend of the cutting force time-domain curve was consistent with the experimental test results.The variation of the cutting force curve of graphene/Al-18Si composite under specific conditions is significantly flatter than that of Al-18Si alloy,and the cutting fluctuation is smaller,and graphene is beneficial to improve the surface processing quality of the composite.
作者
郭志强
水丽
Guo Zhiqiang;Shui Li(School of Mechanical Engineering,Shenyang University of Technology,Shenyang Liaoning 110159)
出处
《机械管理开发》
2022年第12期53-56,共4页
Mechanical Management and Development
