Wire Drawing Dies core are considered to be diamond wire dies’ core component. It is possible to divide the material into three different categories. They are individual crystal diamond core, CVD diamond core and polycrystalline (PCD) core. Hence, wire drawing die is known to contain PCD core.
Know the available types in the market
The common wire drawing core model types in the market are of three series, namely, CXT, CXD and SD.
- PCD mold core: PCD’s successful development has managed to bring out tremendous changes in today’s wire drawing industry. The whole processing has only become more stable and efficient. PCD is created by sintering diamond in micron-sized particles. It is then bindered under high pressure and temperature conditions. Pcd wire drawing dies rather provides excellent wear resistance, high hardness as well as strong impact resistance. Mold offers the benefits of long life and uniform wear, thus making it quite suitable to be used for high speed drawing. PCD is mostly macroscopically isotropic. There are no uneven die hole wear or out-of-round die hole similar to single crystal diamond. Besides this, PCD price is found to be much lower when compared to single crystal diamond. The current wire drawing industry uses this type due to its low price. PCD wire cores are mostly used by diamond wire dies.
- CVD Diamond Core: Also referred to as chemical vapour deposition, diamond, CVD diamond drawing dies is considered to be pure diamond that is deposited on solid substrate surface having carbon containing gas. It is done under low pressure conditions and high temperature. CVD diamond is known to possess good wear resistance, high hardness, high surface finish and low friction coefficient. Wire drawing dies can be created using 0.02 to 1.0 mm aperture to create tungsten wire, stainless steel wire, aluminium wire, copper wire, molybdenum wire, etc. CVD diamond dies is not known to comprise of bonding agent. CVD diamond drawing dies when compared to PCD type, shows much higher corrosion resistance, wear resistance, thermal stability and thermal conductivity. This product is quite tough and hence is not suitable like that of PCD. It also has weaker impact resistance, easily cracked while technical conditions to prepare wire die is stricter when compared to PCD. You can get a fair idea at the leading portals like https://www.szwiredie.com/.
- Individual crystal diamond core: This type shows features of good wear resistance and high hardness. Diamond dies that is drawn by this mold type comes with high surface finish. Due to its anisotropy structure, hardness of this material is also anisotropic. Die hole tends to wear uneven while the product is not round. With the resources being scarce, it is available at a high price. It is mostly used as finished wire die or fine wire die having high surface quality needs. Single crystal diamond cores are of two types, namely, artificial and natural cores.
Based on diverse bonding agents, it is possible to divide PCD cores into two major types, namely, Silicon-based and Cobalt-based. Doing some research on the web will allow you to find the best quality Diamond Drawing Dies in the market.