Sandvik Coromant Machining carbon fibre materials - Manual (Page 40)

Application example
Holemaking in CFRP/AL stack
Facts and demands: •
- Carbon fibre and aluminium stack
- Minimal splintering of fibres
- Reduced burr on exit
- Good surface finish and dimensions
- Pneumatic power feed machine
Solutions •
- CoroDrill 854 drill point, diameter 9.525 mm
- N20C diamond coating
Cutting data •
Powerfeed CNC machine
- VC: 60 m/min - 120 m/min
- Fn: 0.03 mm/rev - 0,04 mm/rev
Benefits: •
- Excellent hole quality: surface and dimension
- Tool life: 200 holes
CoroDrill 854
SANDVIK COROMANT USER’S GUIDE - COMPOSITE SOLUTIONS 40