Vitrified bond diamond grinding wheel for PDC cutter

Introduction:

In the grinding process, the grinding temperature is low and the loss of the grinding wheel is relatively small. The ceramic grinding wheel can adapt to various cooling fluids during grinding, the grinding wheel has good balance, the shape of the grinding wheel can be better maintained during grinding, and the grinding workpiece has high precision，Compared with other kinds of grinding wheels, the hole of ceramic grinding wheel is larger, which is conducive to chip removal and heat dissipation during grinding, and is not easy to block up. In the process of use, the workpiece is not burnt out due to too much heat，Due to the self-sharpness of ceramic grinding wheel, it can ensure the grinding wheel to be more durable and sharp in the process of use, which also makes the dressing interval of the grinding wheel longer, easier to repair, and more cost-effective. Therefore, it is increasingly widely used in the industry.

Advantage:

1. Ceramic binder is ceramic or vitreous, the binder is rigid, high temperature resistance, corrosion resistance, high stiffness to weight ratio, low density and strong chemical inertia.

2. Ceramic grinding wheel is conducive to the improvement of grinding performance, through reasonable proportion and production control, will not produce deformation, so that it is increasingly widely used in science and industry

3. The ceramic grinding wheel can adjust the hardness and porosity, which is beneficial to the improvement of grinding performance

4. High grinding efficiency, good machining accuracy.

Characteristic:

High hardness and wear resistance. The hardness of the polycrystalline diamond layer is generally in HV7000 ~ 9000, and the direction is consistent, which is 2 ~ 4 times of the hardness of the grinding wheel abrasive. With its high durability of grinding wheel, its volume wear ratio up to 1/13 million. Quality wear ratio up to 1/300,000, thus reducing production costs.

It has high bending strength. The bending strength of diamond is 210~490MPa, and the composite layer of PDC blade is supported by a thick hard alloy with higher bending strength, and its composite bending strength is up to 1500 MPa, so there is no breakage or fracture in the process of cutting. 

The cutting force and cutting temperature are lower. The diamond composite sheet has a high thermal conductivity, 1.5 ~ 9 times of the hard alloy, 2 ~ 6 times of the copper, so that the temperature of the cutting area quickly spread out.