Dry and wet grinding 

Generally, the heat generated during the grinding process will burn the workpiece, so it is necessary to use a cooling liquid to remove the heat in time. This is called wet grinding. However, tool grinding is a very special application. Because the shape of the part is more complex and the machining accuracy is higher, most of the processes are set manually, so there is no way to use wet grinding.

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In theory, the hardness of the mold steel is very high, single crystal corundum and SG grinding wheels are the best choice. However, the application of dry grinding requires good self-sharpening of the abrasive to avoid excessive heat generation. White corundum is the best choice, which is why tool grinding has set white corundum as the standard abrasive for ten years.