Diamond tools and their classification

Diamond is a functional material with a variety of excellent properties. It is the hardest natural material found so far. Its unique optical, thermal and mechanical properties strengthen its position in functional materials. Diamond can be divided into natural diamond and synthetic diamond, and synthetic diamond can be divided into single crystal and polycrystal. All three types of diamond can be used to manufacture diamond tools.

In recent years, the global production of artificial diamond has reached 15 billion carats, and China's artificial diamond production ranks first in the world. China's diamond tools have been the first in the world. In the past two decades, China has achieved rapid development. It not only ranks first in the output of diamond tools in the world, but also has developed a complete variety of new tools.

Diamond tools are widely used in stone processing, ceramic modification, geological drilling, oil drilling and mining industries. Diamond tools also play an important role in construction, building materials, mechanical processing, optical glass and jewelry processing and electronic and electrical industries. Modern manufacturing industry has an increasing demand for diamond tools, and high-end equipment manufacturing is increasingly dependent on the development of diamond tools. High-speed, high-speed, high-precision and ultra-precision cutting and grinding, especially the processing of hard brittle and high-hard materials, are inseparable from diamond tools. According to the use, diamond tools can be divided into sawing tools, polishing tools, cutting tools, drilling tools, drawing die, etc.

Diamond sawing tools are divided into diamond circular saw blade, diamond row saw, diamond rope saw, diamond wire saw, diamond hole saw, etc. Diamond circular saw blade is the most common sawing tool used in stone and construction industry, which is widely used in cutting granite, marble, ceramics, concrete and other products. In the tide of green manufacturing, the diamond circular saw is developing to the direction of multi-blade combination saw, combination saw and row saw are typical. The row saw is to install dozens of diamond saw blades side by side on the frame of the saw machine.

 

The cutting efficiency is several times higher than that of the commonly used sand saw. The section of the sheet material cut out is smooth and flat, which can significantly reduce the grinding and polishing workload. Diamond rope saw is generally used in granite, marble mine waste mining, reinforced concrete or metal structural parts cutting, and gradually transition to the processing of special-shaped stone and plate.

 

Diamond wire saw can cut hard and brittle materials with precision and narrow slit. It is widely used in semiconductor and photovoltaic cell slicing processing, and shows unique advantages in ceramics, quartz, wood and other processing.

 

Diamond polishing tool refers to the general term of diamond grinding tools with binder bonding diamond into a certain geometric shape. Diamond grinding tools have high grinding finish, high working efficiency, low processing cost and long service life. Common diamond grinding disc, grinding block, grinding head, grinding bowl, drum, roller, grinding wheel, milling wheel, tangent wheel, honing wheel, honing bar, honing block and so on.

 

Diamond tools are characterized by high hardness and wear resistance, high elastic modulus, low coefficient of friction, low coefficient of thermal expansion, good heat transfer, and small adhesion with non-ferrous metals. It can be used for the processing of non-metallic hard and brittle materials (such as ceramics, graphite, composite materials, etc.), and also for the precision processing of ductile non-ferrous materials (such as copper alloy, aluminum alloy, etc.). There are many types of diamond cutting tools, and the performance of all kinds of cutting tools is quite different, its structure, preparation method and application field are quite different. Common diamond cutter with diamond turning tool, diamond milling cutter, diamond boring cutter, diamond broach, diamond bit and diamond forming tool.

 

Diamond bit is an advanced drilling tool with high drilling efficiency, good drilling quality, relatively light construction labor intensity and low drilling cost. Diamond bits are mainly divided into oil bits, coal bits, geological exploration bits, engineering exploration bits, engineering thin-wall bits, glass bits, composite bits and so on.