Introduction of several kinds of diamond grinding wheel abrasives

Diamond grinding wheel is a commonly used grinding wheel among grinding wheels, and diamond grinding wheel has strict selection of abrasives. The following briefly introduces several commonly used diamond grinding wheel abrasives

1、 Chromium steel jade the hardness of chromium steel jade is similar to that of white corundum and the toughness is better (between brown corundum and white corundum), so the durability and grinding efficiency of the grinding wheel are higher than that of white corundum. At the same time, the contour of the abrasive cutting edge on the surface of the grinding wheel can be maintained for a long time after trimming (that is, the abrasive cutting edge is on the end plane of the same circumferential surface). Therefore, under the same conditions, the surface finish of the workpiece ground with chromium corundum grinding wheel is slightly higher than that with white corundum grinding wheel. Due to the above characteristics, chromium steel jade is suitable for grinding all kinds of hardened high-strength steel, measuring tools and instrument parts with high finish requirements. In addition, it is also suitable for forming grinding and cutting tools. Chromium steel jade price The grid is high and should only be used for fine grinding.

2,、 Single crystal corundum (GD) and microcrystalline corundum (GW) single crystal corundum has high hardness and toughness and good crushing resistance during grinding. It is used for grinding stainless steel and high-temperature high-speed steel. It has better effect when grinding steel with high hardness. Microcrystalline corundum has high strength and toughness, and its self sharpening property is better than single crystal corundum. It is suitable for grinding stainless steel. Bearing steel and special nodular cast iron can also be used for high finish grinding.

3. The color of black silicon carbide abrasive is black, some are dark blue, and the ceramic bond grinding wheel made of is also black. The hardness of black silicon carbide is higher than that of any kind of corundum abrasive. The abrasive grain has sharp water chestnut, but its toughness is low and fragile. It can not withstand the cutting pressure of materials with high toughness, so it is suitable for grinding materials with low tensile strength or soft materials.

4. The color of green silicon carbide is green, and the ceramic bond grinding wheel made with it is also green. Green silicon carbide has the same hardness as black silicon carbide, but it is more brittle. It is mainly used for grinding cemented carbide. Brittle materials such as optical glass.

5. Diamond has higher hardness than other abrasives. It is the hardest material known at present. It has excellent cutting performance, but the price is too expensive. It is mainly used to process high hardness materials that are difficult to be processed by other abrasives. The grinding wheel made of this abrasive is called diamond grinding wheel. It has many different characteristics from the grinding wheel made of corundum and silicon carbide abrasive.