Machining requirements for steel rolling blades

The diversity of rolling blade and the characteristics of working state determine the difference in the selection of cutting tool coating. Different from drilling and turning, milling cutter should consider the characteristics of intermittent impact. The early development of coating to wear resistance as the main focus, to improve the hardness as the main index. Such coatings represented by titanium nitride have a high friction coefficient (0.4 ~ 0.6), and the continuous friction between the workpiece and the processing will generate a lot of heat energy. Cutting fluid is usually used to avoid overheat deformation affecting machining accuracy and prolong its service life.

With the improvement of machining industry level, new requirements for cutting tools are put forward. In addition to improving the service life also requires to reduce the pollution of cutting, as far as possible the use of dry cutting. When the cutting fluid can not be completely eliminated, try to do which only contains rust inhibitor and no organic matter, so that the cost of recycling is greatly reduced.

With the development of science and technology, the surface properties of rolling blade materials are more and more demanding. With the rise of various vapor deposition technologies in recent decades, the research and application of surface engineering technology have made great progress. These technologies not only meet the requirements of mechanical properties, such as wear, friction and corrosion resistance, but also in the fields of electromagnetism, optics, optoelectronics, heat, superconductivity and biology related functional materials. Surface engineering not only makes cheap metal materials play a greater advantage in performance and benefit, but also has become an important means to develop a variety of new coating and thin film materials, which has great application potential.