| 摘要 |
PROBLEM TO BE SOLVED: To provide a boring method of a light-weight carbon fiber composite material which makes burrs less likely to occur in a periphery of a hole.SOLUTION: At least one layer of a porous prepreg, which is formed by impregnating a porous material with a thermosetting resin, is disposed between carbon fiber prepregs. Then, a recessed part is formed on a surface of a carbon fiber composite material by hot press and the thermosetting resin is cured to form a carbon fiber composite material 10B having the recessed part 11 on a surface. A rotating drill blade 51 is pressed against the recessed part 11 on the surface of the carbon fiber composite material 10B to form a bore 13 so that the bore 13 penetrates through the carbon fiber composite material 10B and the drill blade 51 is removed from the bore 13. Boring is conducted through the above-described steps.SELECTED DRAWING: Figure 3 |
