Research Article
Study of Complex Helical Drill with a “S” Type Chisel Edge Tip Orient to Carbon Fiber Reinforced Plastics
| Reinforcing material | Carbon fiber |
| Base material | Epoxy | Layer form | 0°/90° weaving prepreg cloth | Fiber volume fraction (%) | 60 | Thickness (mm) | 5 | Length (mm) | 400 | Width (mm) | 400 |
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