What Abrasives Are Commonly Used In Grinding? What Properties Do They Have? Which Product Is More Suitable?

What abrasives are commonly used in grinding? What properties do they have? Which product is more suitable?

By choosing the right abrasive, your processing efficiency may be doubled, but the cost can be reduced by 30%. Many masters who have been working for a lifetime to prevent burns on grinding surfaces cannot even fully explain the basic characteristics of the grinding wheel abrasives in their hands. Today we use completely straightforward words to analyze these commonly used abrasives in detail.

The tough battle between black corundum and brown corundum

That thing called black corundum is an expert at processing steel, especially in glass sandblasting and floor processing after hardware forging. The effect of using it is not only fast but also excellent. Its price is relatively affordable, and it is suitable for use in rough machining-related situations where surface finish requirements are not particularly high, such as cleaning burrs and oxide scales on the surface of castings.

The hardness of brown corundum is slightly lower than that of white corundum, but it has the advantage of being more resistant to breakage. When rough grinding ordinary steel, it will not break easily at will. On the contrary, it can last for a longer time. It is extremely suitable for grinding carbon steel and general alloy steel. Forged cast iron and hard bronze can also be handed over to it for processing.

White Corundum's Elite Master

White corundum is a difficult "hard guy" to deal with in the range of ordinary abrasives. Its hardness is obviously better than that of brown corundum . When it is used for grinding operations, the cutting force is extremely strong and the material removal speed is very fast. It is suitable for grinding steel materials with higher hardness, such as high carbon steel, high-speed steel and quenched steel. Precision tool factories often use it to complete the sharpening process.

When processing workpieces that are prone to burns, white corundum is also a good choice because the heat it generates during grinding operations can be relatively effectively controlled. Just like when grinding a very thin-walled workpiece, or when embarking on fine grinding of alloy steel, it can ensure that the surface of the workpiece will not crack due to excessive temperature rise, or cause burns and discoloration.

Unique skills of single crystal and microcrystalline

The abrasive grains of single crystal corundum are like small blades, with many edges and corners, good hardness and good toughness. Its grinding force is strong, but it has very little grinding heat. In this way, the cutting life of the abrasive grains is long, and there is no need to frequently replace the grinding wheel. When processing materials with high hardness and sufficient toughness such as stainless steel and high-vanadium high-speed steel, its performance is extremely outstanding, and there is no fear of deformation of the workpiece.

Microcrystalline corundum crystal particles are very small, which results in high strength and unique self-sharpening properties. During the grinding process, its abrasive grains will continue to break and form new cutting edges, which will always remain sharp. It is particularly suitable for deep grinding with large feeds, such as heavy-load slow feed grinding, and is very efficient.

The unique positioning of chromium corundum and zirconium corundum

The color of chrome corundum is rose. Some people simply call it rose corundum. Its brittleness is just right. It is neither too brittle and brittle nor too tough to be used for grinding. Its cutting performance is stable. What are the commonly used abrasives for grinding? What properties do they have? Which product is more suitable? , so it is particularly suitable for form grinding or surface processing projects that pursue high smoothness. The surface quality of the workpiece ground by it is very good.

Zirconium corundum has high strength, very good wear resistance, and considerable grinding efficiency. When grinding objects, the surface of the grinding wheel made of it is not prone to clogging. It is especially suitable for heavy-duty grinding or rough grinding. It can effectively deal with difficult-to-process materials such as stainless steel, heat-resistant alloy steel, titanium alloy, and high-speed high-vanadium steel.

Brothers of the Silicon Carbide Family

Black silicon carbide is mainly used to process non-ferrous metals and non-metallic materials. It is mostly used for grinding materials with relatively low grinding strength, such as ordinary cast iron parts, or non-ferrous metals such as copper and aluminum. It is also widely used in stone cutting and the manufacture of abrasive tools. It has a high cost performance and is a common choice for rough processing of non-metallic materials.

Compared with black silicon carbide, green silicon carbide is purer and harder, and is suitable for processing materials with high hardness but high brittleness. It is necessary to use it to deal with difficult-to-handle objects such as carbide cutting tools and optical glass. Its particle size sand can reach an extremely fine level, starting from 36# and continuing to 8000#. It has a higher packing density and a very powerful grinding ability. It is also inseparable from electronic and jewelry polishing.

Fine grinding of special silicon carbide

Green silicon carbide micro-powder products are specially smelted in large furnaces with precise particle size control. Various specifications range from 36# to 8000#, and can be stably produced according to national and Japanese standards, so the grinding effect is uniform. The main users include ceramic grinding block factories and hardware grinding workshops.

Such fine silicon carbide powder, due to its high hardness, strong cutting ability, and uniform particle size distribution, is used in the electronics industry to cut silicon wafers and in the jewelry industry to polish jade, and the results are quite ideal. It can achieve a very high finish on the surface without causing too many scratches.

During daily work, which abrasive do you most prefer to use? Do you have any unique experience in using it? Please share it in the comment area and like it so that more peers can see it and communicate together to achieve progress.