In metal machinery manufacturing, cutting is a basic and reliable means of processing, in machinery, motors, electronics and other modern industrial sectors play an important role. The development of cutting technology, the new history is the history of the development of tool materials. The new tool material can greatly improve the cutting production rate, improve the machining accuracy, machining surface quality and expand the processing field, reduce the consumption of the tool, and obtain huge economic benefits. New tool materials play a huge role in promoting the development of mechanical manufacturing. Therefore, the development, promotion and use of new materials is one of the important contents of the new technological revolution in the field of mechanical manufacturing.

Cemented carbide is a new tool material, because of its high hardness, wear resistance and compressive strength, with less disorderly chemical, anti-adhesion and heat resistance and other functions, the cutting efficiency of the tool 5-10 times higher than the high-speed steel tool, and can process high-speed steel tool can not process high hardness data, so in the tool data according to a large proportion.

Today, the main trends in the development of the world's cemented carbide industry: First, in order to meet the needs of the development of modern science and technology, since the seventies, in modern machining, the dimensional accuracy of cutting tools with cemented carbide cutting inserts has been significantly improved. Therefore, cemented carbide manufacturers continue to improve their product accuracy. For example, in some developed countries, the U-grade cemented carbide precision grade has been eliminated. Many cemented carbide mold size accuracy has reached the micron level, and even some have reached the ultra-micro end meter level. Second, in order to meet the requirements of the production of products, excellence in production technology and equipment. The introduction of hot isostatic pressing technology in the production field of cemented carbide in the late 1960 s and the spray drying technology transplanted into the production field of cemented carbide in the 1970 s have made the production process of cemented carbide take a big step forward. In recent years, the low-pressure hot isostatic pressing burning equipment and process have made the density of cemented carbide products close to the theoretical value, reaching 99.999%, significantly improving the product quality. Third, in order to improve the processing efficiency and adapt to the requirements of new automatic machine tools, developed some new cemented carbide, such as ultra-fine cemented carbide, gradient cemented carbide, dual-phase cemented carbide, self-lubricating cemented carbide, nano-scale cemented carbide, super-hard coating hard alloy, etc. At the same time, cemented carbide production is developing in the aspect of supporting deep processing tools.

Although the consumption of cemented carbide in our country is a new industry that has been carried out only after the lifting of the shackles, it has been carried out rapidly, especially after the reform and opening up, there has been a trend of independent increase. At present, the output of cemented carbide in China has been in the forefront of the world, the brand and model of the product are also relatively complete, and the quality of many products has reached the international advanced level, the output value and profits and taxes have increased steadily.