Abstract: The findings of this paper are to study failure of grinding wheel by various methods. It also show that during grinding the grain is subjected to forces that create fracture initiation zones in the sharp abrasive grains where tensile and compressive stresses dominate in certain parts of the abrasive grains. The grinding process relies on wear of the abrasive wheel, and the rate of wear plays an important role in determining the efficiency of the grinding process and the quality of the work piece. Vitrified grinding wheels are typically used to remove large volumes of metal and to produce components with very high tolerances. It is expected that the same grinding wheel is used for both rough and finish machining operations. Therefore, the grinding wheel, and in particular its bonding system, is expected to react differently to a variety of machining operations. In order to maintain the integrity of the grinding wheel, the bonding system that is used to hold abrasive grains in place reacts differently to forces that are placed on individual bonding bridges. The structure of a vitrified grinding wheel is composed of abrasive particles, a bonding phase, and distributed porosity to collect detritus and provide access for lubricants. The approach used in this seminar is based on using finite elements to model fracture wear processes in vitrified grinding wheels.

Keywords: Bond Faacture, Wear Model, Failure Model.