Abstract: The paper discussed the structural characteristics of the aramid fiber composites such as anisotropy, heterogeneity, discontinuity, and low interlaminar strength, which resulted in high cutting force, low conductivity of the cutting heat, severe wear of the cutting tool, easy formation of defects, and unstable quality. Some principles in selection of cutting tool materials were proposed, carbide or diamond tools became preferable. The structure and geometrical parameters of cutting tools in turning, milling, and drilling processes were also suggested.

Key words: aramid fiber, composite, cutting process, cutting tool