Efficient Grinding of SKH51 Steel Cutting Knives with CBN Wheels
2023-04-24 00:20:16 By : admin
, HSS, SKH51, Grinding Wheel, CBN, Cutting Tools, Heat Treatment, Hardness.
When it comes to cutting tools made from SKH51 steel, precision and durability are key. This steel material is popularly used in the production of cutting tools because it can withstand wear and tear, and maintain its sharpness even when subjected to high temperatures. However, in order to maintain the quality and effectiveness of SKH51 cutting knives, it is important to use the right kind of grinding wheel during the sharpening process.
CBN grinding wheels are considered to be the best option for grinding SKH51 steel. CBN stands for cubic boron nitride, which is a synthetic material that has similar properties to diamond. CBN grinding wheels offer several advantages over other materials, including high precision, longer lifespan, and less heat generation. When grinding SKH51 cutting knives, the use of CBN grinding wheels ensures that the knife edges are sharpened evenly and accurately, resulting in a cleaner and smoother cut.
The shape of the grinding wheel used also plays a crucial role in ensuring the optimal sharpening of SKH51 cutting knives. There are three main shapes of grinding wheels used for this purpose: flat, cup, and dish. Flat grinding wheels are best suited for sharpening flat surfaces of the cutting knives, such as the top or bottom surface. Cup grinding wheels are used for sharpening the sides of the cutting knives, and are especially effective for shaping concave or convex curves. Dish grinding wheels are used for sharpening the inner surfaces of the cutting knives, such as the concave edges.
In terms of size, standard dimensions for grinding wheels are available, but it is also possible to produce grinding wheels according to custom design specifications. This flexibility ensures that the right kind of grinding wheel can be used for a wide range of SKH51 cutting knives, regardless of their shape or size.
One of the key features of SKH51 steel is its hardness, which typically ranges from 58-62 on the Rockwell hardness scale after heat treatment. This hardness is what makes SKH51 steel ideal for cutting tools, as it provides excellent resistance against wear and tear. However, it also means that the grinding process can be more challenging, as it requires greater precision and control to ensure the cutting knives are sharpened accurately.
In summary, the use of CBN grinding wheels is essential for maintaining the quality and durability of SKH51 cutting knives. The three main shapes of grinding wheels (flat, cup, and dish) can be used depending on the specific requirements of the cutting knife being sharpened. By using the right kind of grinding wheel and taking care during the sharpening process, it is possible to ensure that SKH51 cutting knives remain sharp and effective for longer.