Speed is particularly important to correctly detect. Therefore, we must take practical and effective tool diameter basis. In the infeed amount ap = 0.1mm of circumstances, 6mm diameter ball-cutter, the actual effective diameter of 1.54mm. In order to achieve the cutting speed 200m / min, the speed necessary to achieve 41000r / min.

Produced with the processing chips and chips brought some heat must be eliminated as soon as possible. The best way is to blow compressed air through the spindle directly to the cutting edge. According to different workpiece materials, a small amount of compressed air can be entrained oil. The use of a small amount of lubricating oil can be processed better surface quality, because the chip does not adhere to the cutting edge. For hard machining, you must not use the emulsion. Just a drop of water could cause sudden changes in temperature, and the tool will be broken down into a single component. Due to sudden changes in temperature caused by carbide micro cracks will lead to cutting edge cracking. In hsc processing conditions, depending on the tool diameter and speed, these fragments may have the equivalent of a bullet fired from light weapons energy.

The earliest developed graphite cutting hsc milling, not only means high speed and high feed rate, and in the joint action of a number of factors, its expanding range of applications. Hard milling machine to the power decided to use a great extent. All in all, the concept of hard cutting and high-speed machining is linked.