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The service life of the grinding wheel

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Any grinding wheel has its own wear requirements. If the wear is reached to a certain extent, it must be replaced with a new one. It is not necessary to use excessive wear in order to save materials. This is a very unsafe violation. It is generally stipulated that the new grinding wheel should be replaced when the grinding wheel is worn to a diameter 10 mm larger than the diameter of the chuck.7” cut off disc for metal
The actual grinding time between two dressings of the grinding wheel is called the wheel life. Judging the life of the grinding wheel is generally determined visually based on the phenomenon produced after the working surface is worn. The main phenomena are: self-excited vibration in the grinding process, regenerative vibration on the surface of the workpiece; increased grinding noise; grinding burn on the surface of the workpiece, sharp increase or decrease in grinding force; reduction in grinding precision; grinding surface The roughness is increased. These phenomena are mainly caused by thermal damage to the surface of the workpiece due to excessive grinding temperature and a decrease in roughness and precision due to self-excited vibration.
7” cut off disc for metal,End of life of the grinding wheel: the surface passivation of the grinding wheel is in a smooth state (which will increase the grinding force and grinding heat); the grinding wheel is clogged (prone to vibration or noise and to burn); the contour of the grinding wheel is destroyed (affecting the machining accuracy).

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