Sandvik Coromant Machining carbon fibre materials - Manual (Page 42)

Application example
Holemaking: hand drilling in CFRP
Facts and demands: •
- Carbon fibre
- Reduced burr on exit
- Good surface finish and dimensions
- Hand held pneumatic machine design
Solutions •
- PHT hand held drill
- Right hand cut drill point
- Left hand helix for drill stabilization
Cutting data •
- VC: 60m/min
- fn: 0.05mm/rev
Benefits: •
- Good hole quality
- Reduced drill grab eliminating splintering and delamination
SANDVIK COROMANT USER’S GUIDE - COMPOSITE SOLUTIONS 42