What is a Internal grinder?

An internal grinding machine is a machining machine that mainly grinds the inner surface of a cylindrical workpiece. Grinding is a machining method that uses a grindstone to grind. A grindstone is made by hardening hard abrasive grains such as aluminum oxide and silicon carbide with a binder. In addition, the abrasive grains have the hardness next to diamond. Therefore, it is possible to scrape hard materials such as hardened steel. Grinding has a smaller notch when cutting than cutting, making it unsuitable for rough cutting. However, it is an effective machining method for precision machining because of its good dimensional accuracy and rough finished surface. It is usually used for finishing after cutting and quenching.

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