Advantages of single crystal diamond for ultra-precision processing:

1. The single crystal diamond outer R knife has high hardness and wear resistance, which can minimize the impact of tool tip wear on the size of the workpiece during 

ultra-precision machining.

2. The blade surface roughness of diamond tools is small and the cutting edge is very sharp, reaching Ra0.01~0.006μm. Therefore, it is capable of thin layer cutting and is 

conducive to ultra-precision machining.

3. The friction coefficient is low and built-up edges are not produced during cutting, so the machined surface quality is very high. The surface roughness of processing 

non-ferrous metals can be as small as Ra0.04~0.012μm, and the processing accuracy can reach IT5 or above.

4. It has good thermal conductivity and low thermal expansion coefficient. Therefore, large thermal deformation will not occur during cutting, which is conducive to precision 

machining.