Sandvik Coromant Machining carbon fibre materials - Manual (Page 39)

Application example
Holemaking in CFRP
Facts and demands: •
- Resin rich material
- Electrical or pneumatic versions
- Minimal delamination of fibres
- Good surface finish and dimensions
- CNC machining centre
Solutions •
- CoroDrill 856 drill point, diameter 6.35mm
- N20C diamond coating
Cutting data •
- VC: 130m/min
- fn: 0.05mm/rev
Benefits: •
- Excellent hole quality, minimal delamination
- 800 hole tool life
- Good hole production economy
CoroDrill 856
SANDVIK COROMANT USER’S GUIDE - COMPOSITE SOLUTIONS 39