Electroplated superhard abrasive wheel has the characteristics of high grinding ratio, good sharpness, high bond strength, low cost, etc. It is mainly used for precision high-speed and ultra-high speed grinding of difficult to machine materials.

Therefore, according to the mechanism that the grinding wheel removes the workpiece material in the grinding process, the first participant in the grinding is the highest point on the grinding wheel. If there are few highest points in the manufacturing process of the grinding wheel, the grinding wheel will be easily blunt. Especially for electroplated grinding wheels with high bond strength, it is difficult to remove high spots under the action of small grinding force, and it is not possible to remove high spots until a large grinding force is generated after passivation. At this time, the grinding temperature is already very high, which is easy to cause burns on the workpiece grinding surface and reduce the quality of the grinding surface. Therefore, before grinding with electroplated grinding wheel, more abrasive high points should be in the same size range as much as possible, so as to enable as many abrasives as possible to participate in the grinding, reduce the grinding force and reduce the passivation speed of the abrasive.

The domestic electroplated grinding wheel is mainly manufactured by external plating, and the protrusion height of the abrasive is quite different, especially a small amount of abrasive with high protrusion height, which greatly reduces the grinding performance of the grinding wheel. Before grinding, a small amount of abrasive with high protrusion height should be removed as much as possible through the dressing link to maintain the equal height of the abrasive.

In view of the above problems of electroplated grinding wheels, many scholars at home and abroad have done a lot of research on the dressing of metal bonded grinding wheels, and put forward many advanced dressing processes and methods, such as ELID dressing, electric spark dressing and laser dressing. These methods are of great significance in improving the abrasive protrusion height of electroplated grinding wheels, increasing chip only space and improving the grinding efficiency of grinding wheels, but they have little effect in improving the abrasive contour, and these methods are more complex and costly, so it is not easy to achieve engineering applications.

So Liu Jia and others discussed the feasibility study of dressing electroplated CBN wheel with corundum oilstone. Due to the technological characteristics of electroplated grinding wheels, CBN abrasives are distributed unevenly on the surface of the grinding wheel, and the wrapping height of the coated metal to the abrasives is also quite different. The main reason is that the surface of the grinding wheel is uneven, the discharge energy of each area is different in the electroplating process, and the bonding strength of the abrasive is also different.