Present situation and prospect of diamond wheel
Mar 16, 2020

Diamond, cbn grinding wheel is one of the most typical tools in superhard material tools. It is a product with certain shape, performance and use made under certain production conditions with diamond or cbn as abrasive, with the aid of binder or other auxiliary materials. Diamond and cbn grinding wheel can be divided into metal binder, ceramic binder and resin binder according to the type of binder.

With the development of ultra-hard material tool technology, its machined objects cover almost all known materials, and greatly improve the machining efficiency and quality of various mechanical precision machining fields. In particular, as an important part of advanced manufacturing technology such as high speed, precision, numerical control, micro-machining, its application mainly includes two major fields: one is hard brittle material processing field, mainly refers to sapphire, monocrystalline silicon, polysilicon, magnetic material, silicon carbide, refractory material, glass, geological and other hard brittle material processing fields; the other is mechanical precision machining field, mainly refers to electronic, mechanical drilling and other fields.

According to the different uses, it can be divided into several categories: diamond grinding wheel, diamond saw cutting wheel, diamond drilling cutter head and so on. The appearance of diamond tools has made it a history that can only rely on heavy manual work, low efficiency processing hard and brittle materials, replaced by modern advanced processing methods of mechatronics, and its processing efficiency has been greatly improved. Diamond grinding wheels are the most effective tools in the field of magnetic materials, sapphire, silicon materials, building ceramics, stone, reinforced concrete and other hard and brittle materials processing. The global production of superhard materials tools throughout the world, among which grinding cutting tools with high manufacturing levels in Japan, Germany, the United States and South Korea, grinding tools in these countries are rapidly transforming to superhard materials tools, other grinding tools have been decreasing year by year. Because superhard material products have the outstanding characteristics of high efficiency, energy saving, long life and environmental friendliness, their efficiency and life span are ten times higher than those of traditional tools.

Super hard grinding wheels

China's superhard material products industry started in the 1970s. Prior to this, diamond saw blade and other super-hard materials tools almost all rely on imports, in the 1980s, a large number of production enterprises around the country mainly to produce small diameter diamond saw blade, the 1990s began to enter a period of rapid development. China's super-hard materials and tools industry has realized from scratch, from small to large, forming a complete industrial system with complete categories and considerable scale, including supporting raw material supply system, equipment supply system, auxiliary material system and market system. It has been able to produce super-hard materials tools that basically meet the needs of various industries. With the continuous progress of science and technology in China, the uniqueness of superhard materials can be continuously developed and utilized, the technical level of superhard materials products is constantly improved, and the application field is constantly expanding. Superhard materials products industry has become an indispensable part of national economy and national defense construction. With the increasing maturity of synthetic diamond technology and the rapid development of China's economy, China has more accumulation and progress in diamond tool manufacturing technology, and has a strong manufacturing ability. Because of the advantages of our enterprises in labor cost and the late catch-up situation in technology research and development, our enterprises have obvious advantages in product performance and price ratio. With the rapid growth of market demand, diamond tool enterprises have been set up in various places, and a number of superior enterprises with international competitive strength have emerged. China has become an important producer, user and exporter of diamond tools in the world, with an annual output value of more than 10 billion yuan.

Application of diamond tools in emerging industries is expected to further expand with the continuous improvement of artificial diamond grade, its excellent performance is expected to be more widely used in high-tech fields, such as aeronautical instrument bearings, radar waveguide tubes, optical devices, high-energy smoke sensors and other precision instruments processing; can be used for monocrystalline silicon, polysilicon 0.1-0.2 mm thickness cutting, grinding, satellite solar panels and other high-efficiency precision machining; can be used for computer chips and other large-scale integrated circuit micro-precision cutting, slotting, back, diamond polishing. All the developed countries in the world focus on the development of superhard materials and products, including synthetic diamond. The research and application level of superhard materials and their products represents a country's scientific and technological development level to some extent. Diamonds and cbn grinding wheels are classified according to their use, and there is still much room for development in the following application fields in the domestic market.

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