Chip evacuation and cooling and lubricating between the tool and the workpiece material are primary functions of cutting fluid, and all affect the cutting quality and the tool life.
Coolant recommendations:
- Use high pressure (minimum 10 bar up to 70 bar) coolant containing 5-8 % soluble oil.
- The cubic capacity of the coolant tank should be 5-10 times greater than the volume of coolant that the pump supplies per minute.
- A copious supply of cutting fluid, directed exactly at the cutting edge, should be used from the moment the insert is engaged and throughout the operation.
- Use wet cutting if possible.