Key technology of tools: development of tool coating

From the first CVDTiN/TiC/TiCN adopted in 1970 to the PVD coating technology that began in 1980, modern coating technology is now widely used in tools, molds, parts and decorative products. The coating technology can effectively improve the service life of the cutting tool, and the tool can obtain excellent comprehensive mechanical properties, thereby greatly improving the machining efficiency.

Therefore, coating technology together with materials and cutting processes is called the three key technologies in the field of cutting tool manufacturing. Relative to the widely used TiC, TiCN, CrN, TiAlN, TiAlCN, in order to meet the requirements of high efficiency, high precision and high reliability of modern machining, the next generation coating technology will develop to high performance coating technology, Ionbond ( As one of the world's largest suppliers of PVD/CVD/PACVD/CVA coating equipment and coating services, Ionbond develops the latest generation of high performance coatings for high-end tools, especially carbide tools. High-precision, high-speed, large-cut machining tools for modern CNC machine tools; dry cutting; high-efficiency machining, mass production, etc. Ionbond high performance coatings perform well on drilling knives, milling cutters and gear hobs. The composite coating developed for drilling boring tools (TiN+DLC, TiCN+DLC, AlTiN+DLC) is coated with DLC coating (diamond-like coating) on ​​the basis of the original coating to obtain an extremely smooth surface and reduce friction. The coefficient fundamentally solves the problem of the aperture size overshoot caused by the chip removal problem in deep hole machining. IonbondSuperAlTiN developed by Ionbond reduces tooling torque by more than 50%, which greatly improves tool performance. IonbondHardcut is based on TiSi coating materials for high-speed cutting of hard and difficult-to-machine materials.

Ionbond's high-performance coatings are available on hobs with Si-containing high-performance coatings for hobbing operations requiring high-speed, high-efficiency mass production for processing speeds greater than 120 m/min. The IonBondTopGear coating is for high speed dry cutting; the IonBondTuffGear coating is for medium required coatings. In a set of dry cutting hobbing experiments with a processing speed of 180m/min, the average AlTiN can produce 980 gears per tool, while IonbondTopGear can produce 2000 gears, which doubles tool life. .

The coating manufacturer should provide customized coating parameter design according to the customer's actual situation based on the customer's product application, demand, processing parameters and equipment status, so as to maximize the performance of the coating and achieve the tool's The best life expectancy and enhanced communication and collaboration with customers are extremely important in the actual coating service process.

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