Suzhou tool industry advocates "green" new development with low pollution
With economic development, mechanical processing industry increased levels of tool products with the new requirements. Modern cutting tool products must not only increase the service life but also reduce the pollution during cutting, try their best to contain only rust inhibitors and no organic matter, so as to minimize the cost of recycling.
With the development of science and technology, the requirements for the surface properties of materials are getting higher and higher. With the rise of various vapor deposition technologies in recent decades, the research and application of surface engineering technologies have achieved rapid development. These technologies not only fulfill the requirements of mechanical properties, such as wear resistance, friction reduction and corrosion resistance, but also show their skills in the field of surface-related functional materials such as electromagnetics, optics, optoelectronics, thermal, superconductivity, and biology. Surface engineering not only enables low-cost metal materials to exert greater advantages in terms of performance and benefits, but also has become an important means for the development of various new coating and film materials, and has huge application potential.
Turning and drilling are different, and the characteristics of intermittent impact should be considered for milling cutters . The early development of coatings focused on wear resistance and improved hardness as the main indicator. This type of coating represented by titanium nitride has a high coefficient of friction (0.4-0.6), and continuous friction with the workpiece during processing will generate a lot of heat energy. In order to prevent the tool from overheating and deforming, which will affect the machining accuracy and prolong its service life, cutting fluid is usually used.
To solve the problem of reducing or eliminating the cutting fluid, the tool coating should not only make the tool have a long life, but also should have the function of self-lubrication. However, recent studies have shown that the hardness of diamond -like coatings (also known as graphite-like coatings) based on SP2 structure can also reach 20 to 40 GPa, but there is no problem of catalytic effect with ferrous metals, and its friction coefficient is very high. Low and good moisture resistance. Coolant can also be used for dry cutting during cutting. Its service life is doubled than that of non-coated tools. There is no problem in processing steel materials. This has caused the coating companies and tool manufacturers to extremely Great interest.
As the manufacturing industry attaches importance to the tool industry and the market requires tool products, tool production should also change the development model as soon as possible, improve the technical level and product quality, and try to reduce pollution, recycling, and green development.