The single crystal diamond end mill is a single crystal diamond tool mainly used for milling the end face. If the single crystal diamond end mill is often used, the service life 

of the tool will not be long enough. What methods can prolong the service life of the tool?

Running-in is a way to extend the use of tools. Diamond tools (also known as diamond tools) are more important tools in our cutting. Many times our tools will have some 

corresponding wear and tear after being used for a long time. At this time, we need to carry out proper The running-in of electric discharge sharpening is one of the methods

of sharpening. What are its principles?

Electric sharpening is to condense and vaporize the tool material by discharging between the dielectric-separated grinding wheel electrode and the tool electrode to generate

instantaneous high temperature. When sharpening a diamond tool, since diamond is non-conductive, the electrode of the tool is a conductive network composed of metal 

phases in the diamond. It can be seen that electric discharge sharpening is a thermal erosion process.

Due to the high temperature of electric spark discharge, heat loss and graphitization may be caused when diamond tools are sharpened, especially at the interface between 

diamond and cemented carbide substrate, the corrosion rate is faster, because discharge sharpening is a non-contact sharpening process , The grinding force is so small that 

it can be ignored, so the sharpening efficiency is very high.

The principle of electric sharpening is basically different from the traditional abrasive grinding principle, and also different from the principle of electrolytic sharpening, but as 

one of the sharpening methods of diamond tools, it has many merits.

One of the ways to extend the life of single crystal diamond end mills, and some others, is by grinding them in.