Parameters of the tool grinding wheel

     Tool grinding wheels are made of abrasive material and a binder, pressed and fired to form a porous body. The grinding wheel consists of abrasive material abrasive material, binder, and pores. Its characteristics are determined by abrasive material abrasive material, grain size, binder, hardness, and microstructure.

     Commonly used abrasive material abrasives for tool grinding wheels can be divided into alumina, cemented carbide and superhard abrasive material materials. Grain size refers to abrasive material the size of the particles, usually divided into abrasive material coarse grains and fine powder. Binding abrasive material the grains together to form abrasive material the tool's material is called the binder. Its properties determine the strength of the grinding wheel.

     A harder grinding wheel means the abrasive grains are less likely to fall off; a softer grinding wheel means they are easier to fall off. The hardness of a grinding wheel is mainly determined by the bonding strength, not the hardness. The structure of the grinding wheel is the ratio of abrasive grains, binder, and pore volume. Based on the percentage of the total volume of the grinding wheel, the microstructure of the grinding wheel is divided into three categories: dense, medium, and loose.

     Furthermore, the shape and size of the tool grinding wheel are determined by grinding The shape of the grinding wheel is chosen according to the geometric shape and size of the surface to be ground, and is determined by the specifications of the grinding machine. In production, the shape, size, and properties of the grinding wheel are usually marked on the end face of the wheel in the order of shape, size, abrasive material structure number, binder, and linear velocity. The size generally refers to the outer diameter, * thickness, * and inner diameter.

     grinding During the abrasive material process, under the action of high temperature and high pressure, grinding process, abrasive material the grains undergo plastic flow and chemical reactions. Then, under strong mechanical friction, they become flattened and blunt. In the

     process, the temperature is instantaneously increased to a high temperature under the action of cutting fluid, and then quenched. grinding In this way, the abrasive grains undergo repeated rapid heat quenching, forming large thermal stress on the surface, causing certain parts of the surface to fracture due to thermal fatigue. The bonding strength decreases with grinding increasing temperature. When the force exceeds the bonding strength, it will fracture along a certain bonding segment, causing the whole to

     unevenly fall off from the grinding wheel, causing the profile of the grinding wheel to deform. grinding Clogging of the grinding wheel surface causes grinding material to adhere to the abrasive grains under high temperature and high pressure. Swarf will also be embedded in the gaps between the grinding wheels. When the gaps on the surface of the grinding wheel are clogged, the grinding wheel will be dulled and lose its

     grinding ability. When processing tough materials with high hardness, small structure number, and large grain size, clogging is easy to occur. If the grinding wheel is used continuously, it will reduce grinding efficiency and reduce grinding surface quality, while generating vibration and noise. When the grinding wheel is found to lose grinding ability, the grinding wheel should be dressed immediately.