Pcd tool used to cut the hardness of hv2000 ~ 4000 wheel as easily as a knife tofu, indicating that the tool used to cut the wheel pcd more appropriate. (1) Tool: Use pcd blades made into Figure 15-1 and mechanical clamping tools, as shown in Figure 15-2, used car cylindrical, bore and face. Its vertical and horizontal rake angle of -10 °, the clearance angle of 10 °. All using a circular blade, so the Leads smooth wheel without chipping. (2) Cutting Dosage: Through practice, the amount of cutting tools pcd turning the wheel, the general νc = 25 ~ 40m / min, ap = 4 ~ 5mm, f = 1 ~ 1.5mm / r. (3) Dust: Dust is inevitable when using the tool turning wheel. Dust with pcd wheel when the cutting tool, far lower than the traditional knife bowl squeeze. In order to prevent dust, water spray approach can be used.