Abrasive Tool Usage

In the process of using the abrasive tool, when the abrasive particles are blunt, the abrasive particles partially or completely fall off from the abrasive tool due to the fragmentation of the abrasive particles themselves or the fracture of the bond, and the abrasive on the working surface of the abrasive tool constantly appears new cutting edges, or constantly exposes new sharp abrasive particles, so that the abrasive tool can maintain its cutting performance within a certain period of time. This self sharpening property of abrasive tools is a prominent feature compared to ordinary tools. As early as the Neolithic Age, humans have begun to use natural grindstones to process stone knives, stone axes, bone tools, horn tools and tooth tools; In the 19th century, the United States appeared a ceramic grinding wheel which was fired by combining natural abrasive and clay; Around 1900, artificial abrasives came out, and various abrasive tools made of artificial abrasives were produced in succession, creating conditions for the rapid development of grinding and grinding machines. Since then, the proportion of natural abrasive tools in abrasive tools has gradually decreased.
Abrasives can be divided into natural abrasive and artificial abrasive according to the source of raw materials. The only natural abrasive commonly used in the mechanical industry is oilstone. According to the basic shape and structural characteristics, artificial abrasive tools can be divided into five categories: grinding wheel, grinding head, oilstone, sand tile and above, which are collectively referred to as bonded abrasive tools and coated abrasive tools. In addition, abrasives are also customarily classified as abrasive tools.