Cutting Characteristics of CFRP Materials with Carbon Fiber Distribution
Takashi Inoue* and Masahiro Hagino**
*Department of Mechanical Engineering, Daido University, 10-3 Takiharu-cho, Minami-ku, Nagoya 457-8530, Japan
**Department of Material and Environmental Engineering, Daido University, 10-3 Takiharu-cho, Minami-ku, Nagoya 457-8530, Japan
This study details the machinability of CFRP materials with fiber orientation set Quasi-isotropic in the orientation of (0°, 45°, 90°, -45°), plain weave type in the orientation of (0°, 45°) and at random in using High-Speed Steel (HSS), Nitride HSS, Tungsten-Carbide, TiAlN-coated tungsten carbide and Poly-Crystalline Diamond (PCD). The influences of cutting distance, cutting force, cutting temperature and tool wear on the surface characteristics of the CFRP materials are also examined. The results of our experiments reveal that the cutting force and cutting temperature increases when cutting randomly-orientedmaterials irrespective of the type of cutting tool used. The increment of the cutting force obtained was about 5% compared to cutting plain weave type oriented materials. In addition, the cutting temperature of the central portion was 20°C higher than the surface temperature. The tool wear of straight-edge type PCD tools was about 0.1 mm at 30 m cutting distance, whereas, at sharp edge, and lead angle of 30°, the tool wear reached 0.1 mm at 9 m cutting distance. Additionally, the straight-edge type cutting tool showed better results with respect to adhesion of coated materials.
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