Mechanical Grinding Process of Diamond Grinding Wheel for PCD Tool
Features of pcd tools Polycrystalline diamond (PCD) is a polycrystalline sintered microcrystalline diamond powder with a small amount of metal powder (such as Co) and sintered at high temperature (1400 ° C) and high pressure (6000M Pa). Compared with other tool materials, PCD has extremely high hardness and wear resistance, high thermal conductivity, low thermal expansion coefficient, small friction coefficient, fast cutting heat dissipation, low cutting temperature, small thermal deformation, and can reduce the surface roughness of processing. Features. However, because PCD has a strong affinity with iron group elements, it is not suitable for processing ferrous metals and their alloys. The commercially available PCD composite sheet is prepared by sintering a PCD layer with a thickness of 0.5 to 0.7 mm on a cemented carbide substrate, so it has both the high hardness of PCD, high wear resistance and good cemented carbide Strength and toughness. PCD tools show excellent cut...