Analysis of Micro Cutting Forces in the Helical Milling of CFRP

doi:10.12068/j.issn.1005-3026.2023.07.009

Abstract

Abstract: In order to accurately predict the variation of cutting forces in the helical milling of CFRP， the effects of anisotropy of CFRP materials and fiber direction angle are emphatically considered in the modeling of cutting forces. The orthogonal cutting analysis of CFRP mesoscopic units is carried out according to different damage areas. On this basis， combining the machining principle of the helical milling and considering the cutting force generated by the periphery edges and bottom edges respectively， the change of cutting forces under different fiber direction angles is analyzed， and the theoretical model of cutting forces for helical milling is established. Through the helical milling experiment of CFRP， based on the measured periodic fluctuation values of the three-way cutting forces， the theoretical values of the cutting forces under the specific revolution angles are solved. The results show that the fitting error between the theoretical and experimental values of cutting forces is less than 16%， which verifies the correctness of the theoretical model of cutting forces in the helical milling of CFRP.

Key words: CFRP; micro cutting; fiber direction angle; helical milling; cutting force

CLC Number:

TG501.3

WANG Hai-yan， WU Ye， FU Qi-lin， ZHOU Zhi-tong. Analysis of Micro Cutting Forces in the Helical Milling of CFRP[J]. Journal of Northeastern University(Natural Science), 2023, 44(7): 982-988.

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