The new Ti-Al-XN coating technology uses vapor deposition to coat a few microns of high hardness, high wear resistance and refractory Ti-Al-XN coating on the surface of the high-strength tool substrate to reduce tool wear. The purpose of extending life and increasing cutting speed. It is an important achievement made in a major national special project for high-end CNC machine tools and basic manufacturing equipment.

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

China is an indisputable fact as a major manufacturing country. However, there is still a gap between my country and foreign countries in terms of CNC cutting tool technology, which is prominently manifested in the basic research of advanced coating manufacturing and coating technology. The successful application of the new Ti-Al-XN coating technology broke the monopoly of powerful foreign companies in the field of high-end tools, laid a solid foundation for increasing the localization rate of tools, and created conditions to better meet the needs of key industries. Has significant economic and social benefits.

Carrying the core technology of cutting tools: machine tools are called "machines for manufacturing machines". If high-end CNC machine tools are the artwork of modern industrial civilization, then high-end carbide precision tools are the diamonds on the artwork, and the shining light of diamonds comes from the precision coating several micrometers thick on the surface of the tools.

Coated tools have the characteristics of high surface hardness, good wear resistance, stable chemical properties, heat resistance and oxidation resistance, low friction coefficient and low thermal conductivity. The reason is that the coating material acts as a chemical barrier and thermal barrier, reducing the diffusion and chemical reaction between the tool and the workpiece, thereby reducing wear and tear, increasing the tool life by more than 3-10 times, and the cutting speed by 20%-100%. It can be said that a thin layer of coating carries the core technology of the tool.

Currently, the proportion of coated 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 cutting tools and their core coating technology has been paid more and more attention to in my country's CNC machine tool special projects, and breakthroughs in coating technology have been included in a number of research topics.