Typically, the use hsc machining is possible for more than 56hrc hardness of workpiece machining. In this regard, with the proviso that the combined effect of cutting speed and temperature. For hsc, the melting point of the workpiece material must be tested at a suitable cutting speed. Generally higher than the melting point of the coating of maximum allowable temperature of the workpiece material, it must be careful. In this best aphorism is "Keep tool cooling." This means that on the one hand and the work of the contact zone must be as small as possible, on the other hand must be done at a certain speed machining, the heat was too late to make the cutting edge more than the allowable temperature coating. 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.