Finite Element Analysis of the Influence of Cutting Edge Radius on Mechanical-Thermal Distribution in High-Speed Cutting TiAl6v4
On the basis of analyzing the cutting edge structure and cutting edge radius measurement of high-speed insert, thermal - mechanical coupling finite element method (FEM) is used in this paper, to obtain the effect law of different cutting edge radius on the mechanical-thermal distribution of high-speed cutting TiAl6V4. At last, cutting experiments are carried out to verify FEM results. There is a clear exposition of the intrinsic reason why the cutting edge radius has influence on the mechanical -thermal distribution of high-speed cutting process. The results indicate that the experimental results have a good agreement with FEM; with the cutting edge radius increases, cutting force increases; cutting temperature is not monotonic, but there exists an optimum edge radius that makes temperature lowest; cutting edge changes the plastic flow of materials around tool tip and broaden plastic deformation zone. The cutting edge radius has a greater impact on equivalent stress.
Hun Guo, Zuo Dunwen, Hongli Xu, Chun Su, Chunjie Liu and Weidong Jin
Y. H. Fan et al., "Finite Element Analysis of the Influence of Cutting Edge Radius on Mechanical-Thermal Distribution in High-Speed Cutting TiAl6v4", Key Engineering Materials, Vol. 458, pp. 295-300, 2011