As an super hard tool material, diamond has been widely used in cutting. The application range of diamond tools has expanded to aerospace, aerospace, automotive, electronics, 

stone and other fields. PCD tools are mainly used for processing non-ferrous metals such as non-ferrous metals. They can be sharpen with sharp edges and get a better surface. 

They are also the material of choice for processing non-metallic new materials. High hardness products such as alloys and industrial ceramics.

The advantages of PCD tools

1) The hardness of PCD can reach 8000HV, which is 80~120 times that of carbide inserts and the wear resistance of PCD is better.

2) The thermal conductivity of PCD is 700W/MK, which is 1.5 to 9 times that of cemented carbide, even higher than PCBN and copper. Therefore, PCD cutting tools transfer heat 

quickly, and good heat transfer can greatly extend tool life.

3) The coefficient of friction of PCD is generally only 0.1 to 0.3, while the coefficient of friction of cemented carbide is 0.4 to 1. As a result, PCD tools significantly reduce cutting forces 

and extend tool life.

4) The thermal expansion coefficient of PCD is small, so PCD inserts has small thermal deformation and high processing precision. The greater the thermal deformation of the tool, the 

worse the surface quality of the machined workpiece. In order to machine a workpiece with a good surface quality, the thermal deformation of the tool must be strictly controlled.

5) PCD cutters have low affinity with non-ferrous metals and non-metallic materials, and the tip of the tool is not easy to form built-up edge during processing. When the affinity of the

tool and the material to be processed is small, the material to be processed is not easily bonded to the surface of the tool during the processing, and the built-up edge is not easily formed.

6) PCD tools has large elastic modulus and high breaking strength (three times higher than alumina). The blunt radius of the cutting edge can be ground very small, not easy to break,

and can maintain the sharpness of the cutting edge for a long time.