CNC cutting tool technology in China needs to be improved

Because the coating material acts as a chemical barrier and a thermal barrier, it reduces the diffusion and chemical reaction between the tool and the workpiece, thereby reducing wear, making the tool life 3 to 10 times longer, and the cutting speed increasing by 20% to 100%. It can be said that A thin layer of paint carries the core technology of the tool. Therefore, the coated cutters have high surface hardness, good wear resistance, stable chemical properties, heat and oxidation resistance, low coefficient of friction, and low thermal conductivity. New Ti-Al-XN coating technology is the use of vapor deposition methods at high The surface of the strength tool substrate is coated with a few micrometers of high hardness, high wear resistance, infusible Ti-Al-XN coating, so as to achieve the purpose of reducing tool wear, prolonging the life and increasing the cutting speed. It is an important achievement of the country's major special projects for high-end CNC machine tools and basic manufacturing equipment.

This technology breaks the monopoly of foreign companies in the field of high-end tool coating technology, improves the localization rate of high-grade coated tools, and lays a solid foundation for key users such as automobiles and aviation to increase production efficiency and reduce production costs.

It is an indisputable fact that China is a big country. However, there is still a gap between China's CNC cutting tool technology and foreign countries, which is highlighted in the basic research of advanced coating manufacturing and coating technology.

The successful application of new Ti-Al-XN coating technology broke the monopoly of foreign strong companies in the field of high-end cutting tools, laid a solid foundation for improving the localization rate of tools, and created conditions for better meeting the needs of key industries. Has significant economic and social benefits.

Carry tool core technology: The machine is called the machine that makes the machine. If the high-end CNC machine tool is a modern industrial civilization artwork, then the high-end carbide precision tool is a diamond on the artwork, and the sparkle of the diamond comes from a precision coating of a few microns thick on the tool surface.

Coated tools have high surface hardness, good wear resistance, chemical stability, resistance to heat and oxidation, low coefficient of friction, and low thermal conductivity. The reason is that the coating material acts as a chemical barrier and a thermal barrier, which reduces the diffusion and chemical reaction between the tool and the workpiece, thereby reducing the wear, making the tool life improve by 3 to 10 times, and the cutting speed by 20% to 100%. A thin layer of paint carries the core technology of the tool.

At present, the proportion of coating tools in cutting tools has reached 80%. As foreign companies occupy a monopoly position in the field of high-end cutting tools, the status of tools and their core coating technologies is increasingly valued in China's CNC machine tool special projects. Breakthroughs in technology have been included in a number of research projects.