The vapor deposition method is used to coat the surface of the high-strength tool substrate with a few microns of high hardness, high wear-resistant refractory Ti-Al-X-N coating to reduce tool wear, extend tool life, and increase cutting speed.

The core technology of bearing tools: machine tools are called "machines for manufacturing machines". If high-end CNC machine tools are works of art of modern industrial civilization, then high-end carbide precision cutting tools are diamonds on works of art, and the brilliance of diamonds comes from the precision coating a few microns thick on the surface of the tool.

Coated tools have the characteristics of high surface hardness, good wear resistance, stable chemical properties, heat resistance, 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 the wear of the tool, increasing the tool life by more than 3 times, and the cutting speed by 20% and 100%. %. It can be said that the thin coating carries the core technology of the tool.

At present, the proportion of coated tools in the tools has reached 80%. Due to the monopoly of foreign companies in the field of high-end cutting tools, in the special projects of CNC machine tools in my country, the position of cutting tools and their core coating technology has received more and more attention, and breakthroughs in coating technology have also been included in many topics.