People in the industry know that the hardness of white aluminum oxide grinding wheel and the hardness of abrasive are different concepts, but people who don't understand the industry can easily confuse them, which causes considerable difficulties for buyers. So how should we distinguish and choose?
White aluminum oxide grinding wheel hardness and white fused alumina abrasive hardness
The hardness of abrasive tools is primarily determined by the properties of the workpiece material and the grinding method. The hardness of a white aluminum oxide grinding wheel refers to how easily the abrasive grains on the wheel's surface break off under the grinding force. A softer wheel's hardness indicates that the abrasive grains break off easily, while a harder wheel's hardness indicates that the grains don't break off easily.
The same abrasive can be made into grinding wheels of different hardness, which mainly depends on the performance and dosage of the binder and the manufacturing process of the white aluminum oxide grinding wheel.
The significant difference between grinding and cutting is that the grinding wheel has a "self-sharpening" property. Choosing the hardness of the white aluminum oxide grinding wheel actually means choosing the self-sharpening property of the grinding wheel. You don't want the abrasive grains to be blunt and not fall off, nor do you want the sharp abrasive grains to fall off prematurely.
Now that we are talking about white aluminum oxide grinding wheel, let us popularize the precautions when using the grinding wheel machine. After all, only by using the grinding wheel machine safely and correctly can our work efficiency be improved and the work quality be improved.
Speed issue: When using a white aluminum oxide grinding wheel machine, some operators, especially young operators, use too much force to grind quickly in order to achieve the desired grinding speed. This is a very unsafe operation. Any grinding wheel has a certain strength. Grinding quickly can easily cause the grinding wheel to break or even fly out and injure people. Therefore, this behavior should be strictly prohibited.
