The use of abrasive tools
Abrasive in the process of use, when the abrasive grain grinding blunt, due to its own part of the grinding or bond breaking, abrasive from the abrasive parts or completely off, while the abrasive abrasive material on the working surface of the new cutting edge, or constantly revealing new sharp abrasive grain, so that the abrasive in a fixed time to maintain the cutting performance. This kind of self sharpening, is the abrasive tool and general tool compared to the prominent characteristics. Early in the Neolithic age, human beings have begun on the application of natural stone processing stone knives, axes, bone, horn and dental tools; in 1872, in the United States appeared to use a combination of natural abrasive and clay kiln ceramic grinding wheel; in 1900 before and after the advent of artificial abrasives, using artificial Abrasives manufacturing various abrasive products have generated, for rapid development of grinding and grinding machines created conditions. Since then, the proportion of natural abrasive in the abrasive tool is gradually reduced.
Abrasives according to the source of its raw materials, there are two types of natural abrasives and artificial abrasives. In the machinery industry commonly used only natural abrasives whetstone. Artificial abrasives according to the basic shape and structural characteristics of the distinction, a grinding wheel, grinding wheel, oilstone, sand tile above collectively bonded abrasives and coated abrasives five categories. In addition, the habit of grinding agents are classified as a type of abrasive.