A natural diamond crystal structure of dense, close contact between atoms, together with other pro-small material, friction coefficient of thermal expansion coefficient and low thermal conductivity high. Therefore, use it to make knives, a high hardness and wear resistance, and grinding to a high surface roughness (Ra0.1u) of the surface and very sharp knives the blade (bladed radius can be a 0.01 um )
natural diamond tools and processed products, will be stable and high precision the size of the surface roughness, therefore, natural diamond tools widely used in space instrumentation, computer, watch cases, jewelry and other industries.
In 1955 the U.S. company GE scientists successfully synthesized a weight of about 1 kt diamond jewellery-class, its physical properties are also the best. An integral part of this diamond in 99.9 percent of the carbon isotope C12, its thermal conductivity better than 50 percent of natural diamond, 850 times faster than copper. Recently, many media have also revealed that this diamond is by far the best of thermal conductivity, good resistance to high-power laser from the damage caused. These reports once again to many whimsical, the use of synthetic diamond instead of natural diamonds, they circle the diamond dream. However, synthetic diamond costs higher, at the same time, because of its excellent physical characteristics, so more applicable to technical fields.
From 1958 onwards, people have started to use 60 to 70 thousand high-pressure Pakistan from 1200 to 1500 degrees centigrade and the high temperature will be graphite into diamond. This synthesis technology in the next few years has been continuous improvement. This synthetic diamond, and the subsequent use of technology similar to the CBN also was used for cutting such as stone, wood, plastic and metal, such as the cutting-crystal materials basis.
Today, the crystal-cutting tools in the field of manufacturing technology has been indispensable. Initially, it is committed to the development of highly efficient grinding material. In about 1972, the United States using special technology, the successful production of a micron level by the size of the diamond crystals polycrystalline diamond blade.
A year later, the same technology is also applied to CBN. Cutting-crystal materials with the diamond crystal orientation is not, therefore, the hardness of diamond-and anti-wear in all directions are evenly distributed. And natural single crystal diamond in sharp contrast to that no-crystal materials weak bond layer, the hardness of the bond will not be uneven, so there will not be peeling. Therefore, PKD blade without correction through its Feed the direction of cutting to get the best results. If the traditional Carbide Tool or ceramic tool can not achieve the desired cutting process requirements or its useful life is too short, please use polycrystalline diamond cutter, offering you a faster cutting speed, accuracy and higher processing Tool longer service life, thereby enhancing the quality of your product.
Features
Diamond is the most hard materials, using special high temperature and high pressure technology, can carbide base on a close bond of polycrystalline diamond. PCD cutting blade can be used for other non-ferrous metals such as aluminum and copper alloy and non-metallic such as fiber-reinforced plastic (GFK and CFK), hard rubber, wood, fiberboard, melamine resin fiber-reinforced polymer materials and metals ( MMC). With the use of diamond coatings cutting tools, you can get faster cutting speed and longer tool life, processing materials on the surface quality and accuracy of processing will be higher.
Use
PCD cutting blade can be used for other non-ferrous metals such as aluminum and copper alloy and non-metallic such as fiber-reinforced plastic (GFK and CFK), hard rubber, wood, fiberboard, melamine resin fiber-reinforced polymer materials and metals ( MMC). The use made of the PCD cutting tools, you can get faster cutting speed and longer tool life, processing materials on the surface quality and accuracy of processing will be higher. |
