摘要 |
A method of high speed milling, and apparatus for performing the method, comprises directing a jet of high pressure coolant at the cutting zone of a rotary cutting tool. The jet of coolant has a delivery pressure of up to 500 bar at a flow rate of up to 60 litres per minute. The method is especially effective when used with a rotary cutting tool having at least 20 cutting edges and up to 100 cutting edges. |