What Are The Types Of Abrasive Tools

According to the different abrasives used, bonded abrasives can be divided into ordinary abrasive bonded abrasives and superhard abrasive bonded abrasives. The former is made of ordinary abrasives such as corundum and silicon carbide, while the latter is made of superhard abrasives such as diamond and cubic boron nitride. In addition, there are some special varieties, such as sintered corundum abrasive tools.
Ordinary abrasive bonded abrasive is a kind of abrasive tool with a certain strength and a certain shape of ordinary abrasive consolidated by a bond. Generally, it is composed of abrasive, bond and pore. These three parts are often referred to as the three elements of consolidated abrasives.
Abrasives play a cutting role in abrasive tools. Binder is the material that consolidates loose abrasive into abrasive tools. There are inorganic and organic materials. Inorganic binders include ceramics, magnesite and sodium silicate; Organic ones include resin, rubber and shellac. The most commonly used are ceramic, resin and rubber binders.
The air hole plays a role of holding and removing debris during grinding, and can contain coolant, which is helpful for the dissipation of grinding heat. In order to meet some special processing requirements, the pores can also be impregnated with some fillers, such as sulfur and paraffin, to improve the performance of abrasive tools. This filler is also known as the fourth element of abrasive tools.
The items representing the characteristics of ordinary abrasive bonded abrasives include: shape, size, abrasive, grain size, hardness, structure and bond. Abrasive hardness refers to the difficulty of abrasive particles falling off the surface of the abrasive tool under the action of external forces, which reflects the strength of the binding agent to hold the abrasive particles.