The honeycomb structure of the diamond millstone was polished by reducing the contact area with the sample. Make the pressure required to grind the sample much less than that required when using flat disks. This reduces the risk of tearing of the grinding disc.

With a specially designed honeycomb structure, the test lubricant can provide better circulation from one cavity to another. The evacuation of the wear residues ensures a constant grinding capacity, so the results are regular throughout the grinding and polishing steps.

Because the concentration of diamond powder particle size on the surface of diamond rough grinding plate is higher than that of traditional sandpaper, when grinding the sample, the new deformation layer introduced by itself is very thin compared with the sandpaper when removing the surface deformation layer produced by the cutting. There is no need to use different numbers of sandpaper to remove the local deep deformation layer introduced by the previous process, like sandpaper.

The surface hardness of the diamond grinding plate is 400 HV, and the grinding plate itself will not appear local depression similar to sandpaper, which ensures the surface flatness of the sample and prevents the formation of deep disturbance layer in the first few seconds of processing. At the same time, the diamond grinding plate is equally effective for hard and soft materials to ensure the consistent grinding effect on the surface of the sample, and there is no uneven between different phases. Can completely eliminate the chamfering phenomenon between the resin and the sample.