Typically, the use hsc machining is possible for more than 56hrc workpiece hardness cutting. In this regard, with the proviso that the combined effect of the cutting speed and temperature. For hsc, the melting point of the workpiece material must be tested at an appropriate cutting speed. Usually higher than the melting point of the coating of the highest permissible temperature of the workpiece material, so be cautious. The best in this aphorism is "Keep tool cooling." This means that on the one hand the contact area with the workpiece must be as small as possible, on the other hand must be completed in the determined velocity machining, the cutting edge is too late to make the heat to the coating exceeds the allowable temperature. Correctly detected rotational speed is particularly important. Therefore, we must take practical and effective tool diameter for the foundation. In the infeed amount of ap = 0.1mm case, 6mm diameter ball milling, 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 removed 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 is concerned, absolutely can 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 the carbide micro-cracks, the cutting edge will cause cracking. In hsc processing conditions, depending on the tool diameter and speed, these fragments may have the equivalent of a lighter weapon bullet fired energy.