The fast cheap metal grinding disc structure generally consists of a working layer, a base body and a transition layer.
The working layer, also known as the diamond layer, consists of abrasives, binders and fillers and is the working part of the grinding wheel. The transition layer, also called a non-diamond layer, consists of a binder, a metal powder, and a filler, and is a portion that firmly bonds the diamond layer to the substrate.

The base body is used to receive the abrasive layer and is firmly clamped to the grinding machine spindle by a flange during use. Generally, the metal bond product is selected from steel and alloy steel powder as the matrix; the resin bond is selected from aluminum alloy and bakelite as the matrix. It is made of aluminum, steel or bakelite and functions as a supporting working layer and a chucking tool. The quality of the grinding wheel and the accuracy of its use are closely related to the substrate.

Due to the characteristics of diamond abrasives (high hardness, high compressive strength and good wear resistance), diamond grinding tools are an ideal tool for grinding hard and brittle materials and hard alloys in grinding, which is not only efficient but also highly accurate. High and the roughness is good, the abrasives are used less, the service life is long, and the working conditions can be improved. Therefore, it is widely used in low-iron content metal and non-metal hard and brittle materials, such as cemented carbide, high-aluminum porcelain, optical glass, agate gemstone, semiconductor material, stone, etc., which are difficult to process with ordinary abrasive tools.

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