- Joined
- May 2, 2014
- Messages
- 217
Carbide tools perform best when run dry or flooded with coolant. Intermittent coolant application can cause rapid cooling/heating that can fracture the tool. Water based coolants disperse heat the best. Cutting oils are thick and often sulfur based. They make smoke and don't dissipate heat as well as coolant. Cutting oil works well with HS tooling, since the SFM is much lower than carbide.