南京航空航天大学学报（英文版）2023，Vol.40Issue(3)：253-263,11.DOI:10.16356/j.1005-1120.2023.03.002
Cf/SiC复合材料铣削特性的三维有限元分析及试验验证
Milling Performance of Cf/SiC Composites:Three-Dimensional Finite Element Analysis and Experimental Validation
摘要
Abstract
Carbon fiber reinforced silicon carbide(Cf/SiC)composite materials possess high strength,wear resistance,and anisotropy,thus their machining is very difficult and demands extra precautions.In this research,finite element analysis(FEA)simulations and experiments of the slot milling process have been carried out to analyze the cutting performance of Cf/SiC with a polycrystalline diamond(PCD)tool.Effects of machining parameters on cutting forces are studied and material removal mechanisms at different fiber cutting angles have been investigated.The finite element model has been generated in ABAQUS/CAE software and the machining is performed.by using user-defined material subroutine.Effects of machining parameters on cutting forces are calculated through FEA simulations and compared with experimental results to authenticate the finite element model.Cutting forces in x-axis and y-axis directions obtained from experiments and simulations have been analyzed and a good agreement is found between them.The resultant cutting forces decrease with the increase in cutting speed.However,with the increase of feed per tooth the resultant cutting forces increase.When the machining is performed along the fiber direction,stresses generated near the tool edge are minimum.The stresses rise with the increase of the fiber cutting angle.This research provides an efficient way to analyze the cutting performance of Cf/SiC composite materials.关键词
三维有限元仿真/Cf/SiC复合材料/铣削加工/切削力/切削加工性Key words
3D finite element simulation/Cf/SiC composites/milling/cutting force/machinability分类
金属材料引用本文复制引用
ELLAHI Zohaib,赵国龙,年智文,MUHAMMAD Jamil,何宁..Cf/SiC复合材料铣削特性的三维有限元分析及试验验证[J].南京航空航天大学学报（英文版）,2023,40(3):253-263,11.基金项目
This work was supported by the Na-tional Natural Science Foundation of China(No.52075255). （No.52075255）
