There are many types of grinding wheels commonly used in surface grinders, and there are various shapes and sizes. Because of the different abrasives, bonding materials and manufacturing processes of the grinding wheels, various grinding wheels have different working functions. Each type of grinding wheel has a certain scope of application according to its own characteristics.
For example: Brown corundum grinding wheel: Brown corundum has high hardness and high resistance, suitable for grinding metals with high tensile strength, such as carbon steel, alloy steel, malleable cast iron, hard bronze, etc. This kind of abrasive has good grinding function and adaptability It is widely used to cut rough grinding with a large margin. It is cheap and can be widely used.
White corundum grinding wheel: The hardness of white corundum is slightly higher than that of brown corundum, and its resistance is lower than that of brown corundum. During grinding, the abrasive grains are simply broken. Therefore, the grinding heat is small. The cost of high-speed steel and grinding wheels for grinding thin-walled parts is higher than that of brown corundum.
Chrome corundum grinding wheel: suitable for grinding tools, measuring tools, appearance, thread and other high-quality workpieces with high surface processing requirements.
Single crystal corundum grinding wheel: suitable for grinding stainless steel, high-vanadium high-speed steel and other materials with high durability and high hardness, and workpieces that are easy to deform and burn. Microcrystalline corundum grinding wheel: suitable for grinding stainless steel, bearing steel and special ductile iron, etc., used for profile grinding, plunge grinding, mirror grinding.
Therefore, in the grinding process, the appropriate grinding wheel must be selected according to the specific conditions (such as the nature of the material to be ground, the heat treatment method, the shape of the workpiece, the size, and the processing method and skill requirements, etc.). Otherwise, the improper selection of the grinding wheel will directly affect the machining accuracy, surface roughness and production efficiency.
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