Thermal stable pcd manufacturers take you to know: Introduction to the performance of polycrystalline diamond PCD
Publishing time：
Sep 03,2021
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Thermal stable pcd manufacturers tell you that Polycrystalline Diamond (PCD) is a new type of superhard material that has been studied and used internationally since the 1970s. It is formed by sintering at a high temperature of 1400°C and a high pressure of 6GPa.
Thermal stable pcd manufacturers tell you that Polycrystalline Diamond (PCD) is a new type of superhard material that has been studied and used internationally since the 1970s. It is formed by sintering at a high temperature of 1400°C and a high pressure of 6GPa.
Thermal stable pcd manufacturers tell you that polycrystalline diamond is not only an engineering material, but also a new type of functional material; it is both a high-tech product and a high-efficiency product. Thermal stable pcd manufacturers tell you that with the development of modern industry and science and technology, polycrystalline diamond has been increasingly used in modern industry, national defense and high-tech fields with its excellent power, heat, chemistry, sound, light, and electrical properties. Wide range of applications.
Polycrystalline diamond tools have become an indispensable and necessary means in modern cutting. This is mainly reflected in the following aspects:
(1) High-speed cutting, high-stability machining
(2) Ultra-precision mirror processing
(3) Dry cutting, clean processing
Performance introduction:
(1) High hardness and wear resistance
Thermal stable pcd manufacturers tell you that the hardness of polycrystalline diamond is as high as about 10000HV. It is currently the hardest material in man-made materials in the world. It is much higher than the hardness of cemented carbide and engineering ceramics. It is isotropic and therefore has excellent abrasion resistance.
(2) Low friction coefficient
Thermal stable pcd manufacturers tell you that the coefficient of friction between polycrystalline diamond and some non-ferrous metals is lower than other materials, about 1/2 of that of cemented carbide. The low coefficient of friction not only reduces the deformation and cutting force, but also prevents chip buildup during cutting, thus reducing the surface roughness of the machined. <
(3) High thermal conductivity
Thermal stable pcd manufacturers tell you that the thermal conductivity of polycrystalline diamond is very high, better than silver and copper, and much higher than general cemented carbide. Therefore, the cutting heat is easy to dissipate during the cutting process, so the cutting temperature is lower.
(4) High processing accuracy
The thermal stable pcd manufacturer tells you that because polycrystalline diamond tools have a low coefficient of thermal expansion and a high modulus of elasticity, the tools are not easily deformed during the cutting process. Under the action of cutting force, the tools can maintain their original parameters and remain sharp for a long time. , High cutting precision. Thermal stable pcd manufacturers tell you that when using PCD tools for processing, you can reduce the cutting force and lower the cutting temperature, improve the tool durability and cutting rate, and obtain a good machined surface.
Main problem: The thermal stable pcd manufacturer tells you that the high hardness and high wear resistance of PCD materials make molding and surface finishing very difficult, which seriously hinders its promotion and application.
Common processing methods: EDM, laser processing, chemical processing, ultrasonic processing.
Ideal processing method: Thermal stable pcd manufacturer tells you grinding or grinding processing.
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