The concept of grinding is introduced

1 grinding grinding generally use the definition of high speed rotating wheel, using constitute the very hard fine abrasive grinding wheel for cutting processing method. 2 grinding characteristics and shortcomings of grinding and cutting, compared with the following features. ( 1) Can easily cutting tools used in cutting cutting hard and brittle materials. Cutting edge grinding wheel is very hard mineral particles, can easily processing of hard alloy and ceramic ware. ( 2) Can easily get the requirements of the surface roughness and machining precision. One form of grinding wheel cutting edge is very small, and used under high speed rotation, chip tiny. That is, better than using cutting tool machining surface roughness get, dimensional accuracy. ( 3) Processing a great week speed of the grinding wheel is 10-80 m/s, several times higher than the speed of the cutting tool to dozens of times. One by one, therefore, the chip is very small, and excellent processing. ( 4) Cutting edge self-sharpening effect in use, grinding wheel due to the cutting edge of wear and tear, caused by cutting resistance increases, abrasive break or fall off, produce new cutting edge and porosity. Therefore, unlike the general cutting tool that needs to be grinding. ( 5) Because of the high grinding temperature points, is the cause of fire crack in grinding operation, the temperature of grinding point easily over 1000 ℃, it is a big drawback of grinding. As a result, in order not to make fire crack phenomenon, need to use for its good performance of grinding liquid cooling. ( 6) Using high-speed rotating wheel due to the grinding wheel is high speed rotating, so one thousand damage, with the risk of major disasters. Therefore, we need to give full consideration to safety, including staff and work environment. 3 of grinding classification in terms of the classification of the grinding, there are all kinds of method, if classified according to its operation method, including the following several kinds.