Surface grinding wheel is used to produce a smooth finish on flat surfaces. It is a widely used abrasive machining process in which a spinning wheel covered in rough particles cuts chips of metallic or nonmetallic substance from a workpiece, making a face of it flat or smooth.
The workpiece is mainly rotated by a grinding wheel so that it can reach the required flatness. According to the shape of the table, it can be divided into two types: a rectangular table and a circular table. The main parameters of the surface table of the rectangular table are the width and length of the table. The main parameter of the table is the work surface diameter. According to the different types of shafts, it can be divided into horizontal shaft and vertical shaft grinding machine.
Aluminum oxide, silicon carbide, diamond, and cubic boron nitride (CBN) are four commonly used abrasive materials for the surface of the grinding wheels. Of these materials, aluminum oxide is the most common. Because of cost, diamond and CBN grinding wheels are generally made with a core of less expensive material surrounded by a layer of diamond or CBN. Diamond and CBN wheels are very hard and are capable of economically grinding materials, such as ceramics and carbides, that cannot be ground by aluminum oxide or silicon carbide wheels.
Typical workpiece materials include cast iron and mild steel. These two materials don't tend to clog the grinding wheel while being processed. Other materials are aluminum, stainless steel, brass and some plastics. When grinding at high temperatures, the material tends to become weakened and is more inclined to corrode. This can also result in a loss of magnetism in materials where this is applicable.