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The cutting piece is the most important type of grinding tool in grinding. The dicing sheet is a porous body prepared by adding a binder to an abrasive, compacting, drying and calcining. Due to the different abrasives, binders and manufacturing processes, the characteristics of the 5 inch resin cutting disc for metal vary greatly, which has an important influence on the processing quality, productivity and economy of the grinding. The properties of the dicing sheet are primarily determined by factors such as abrasive, particle size, binder, hardness, texture, shape and size.

Classification of cutting pieces
There are many kinds of cutting discs. According to the abrasive used, it can be divided into common abrasive (Cornea (Al2O3) and silicon carbide) cutting sheets and super hard abrasive (diamond and cubic boron nitride) cutting sheets; according to the shape of the cutting sheet, it can be divided into flat cutting pieces. , oblique bevel cutting piece, cylindrical cutting piece, cup-shaped cutting piece, fiber cutting disc Chinese supplier, etc.; according to the bonding agent can be divided into ceramic cutting piece, resin cutting piece, rubber cutting piece, metal cutting piece and the like.

Cutting piece properties
The dicing sheet is a circularly fixed abrasive having a through hole in the center made of an abrasive, a bonding agent or the like.
The properties of the dicing sheet are determined by factors such as abrasive, particle size, hardness, binder, shape and size, and are described below.

Abrasives and their choice

Abrasives are the main raw material for the manufacture of cutting sheets, which are responsible for cutting work. Therefore, the abrasive must be sharp and have high hardness, good heat resistance and certain toughness. The names, codes, characteristics and uses of commonly used abrasives are shown in Table 1.
Granularity and its choice

Particle size refers to the size of the abrasive particles. The particle size is divided into two types: abrasive grain and fine powder. The abrasive particles are classified by a screening method whose particle size number is expressed by the number of perforations within one inch of the screen. For example, a 60 # grain size abrasive grain, which can pass through a screen with 60 holes per inch, cannot pass through a screen of 70 holes per inch. 120# Particle size description can pass through a screen with 120 holes per inch.
For abrasives having a particle size of less than 40 μm (micron, 1 mm = 1000 μm), it is called micropowder. The micro powder is classified by microscopic measurement, and its particle size number is expressed by the actual size of the abrasive (W). The abrasive grain sizes of various particle size numbers are shown in Table 2.
The choice of abrasive particle size is primarily related to machined surface roughness and productivity. When rough grinding, the grinding allowance is large, and the required surface roughness value is large, and coarser abrasive grains should be selected. Because the abrasive grains are coarse, the pores are large, and the grinding depth is large, the cutting sheets are not easily blocked and heated. When fine grinding, the margin is small, the roughness value is required to be low, and finer abrasive grains can be selected. In general, the finer the abrasive grains, the better the surface roughness of the grinding.
5 inch resin cutting disc for metal