What is dry cutting?
The use of cutting fluids in cutting process has many advantages, but on the one hand, it causes a huge waste of resources and energy (according to German company statistics, the cost of cutting fluids accounts for 16% of the total manufacturing cost, while the cost of cutting tools only accounts for 3%-4% of the total manufacturing cost). On the other hand, cutting fluid will cause serious environmental pollution, and even endanger workers'health.
The so-called high-speed dry cutting refers to the conscious reduction or complete cessation of the use of cutting fluid in high-speed machining in order to protect the environment and reduce costs.
Cutting is not simply to stop using cutting fluids, but to ensure high efficiency, high product quality, high tool durability and reliability of cutting process while stopping using cutting fluids. It is necessary to replace the role of cutting fluids in traditional cutting with dry cutting tools, machine tools and auxiliary facilities with excellent performances, so as to realize dry cutting in a real sense.
Dry cutting is the most widely used in high hardness turning (hard turning) and die milling. The former requires high temperature resistance of CBN blades, so that the processed materials become soft due to heat. Because of discontinuous cutting, not only the cutting fluid can not reach the blade because of the high speed in the die processing, but also the blade will produce huge temperature difference when it contacts the cutting fluid, which will cause cracks because of the material's thermal expansion and cold contraction too frequently. So in these two occasions, it is often difficult to see the use of cutting fluid.