Wheel life and its end form
Any grinding wheel has its use of certain wear requirements, wear to a certain extent must be re-replaced with a new wheel. Not in order to save material, the requirements on the use of ultra-wear, which is a very unsafe illegal behavior.
Any grinding wheel has its use of certain wear requirements, wear to a certain extent must be re-replaced with a new wheel. Not in order to save material, the requirements on the use of ultra-wear, which is a very unsafe illegal behavior. General provisions, when the wheel wear to diameter 10mm larger than the chuck should be replaced when the new wheel.
The actual grinding time between grinding wheels is called grinding wheel life. Judging wheel life, generally based on the work surface after the phenomenon of wear and tear to determine the visual phenomenon. The main phenomena are: the process of self-excited grinding vibration, the surface of the workpiece surface regeneration pattern; grinding noise increases; the workpiece surface grinding burns, abrasive sharp increase or decrease; grinding accuracy; grinding surface Roughness increases. These phenomena are mainly due to the grinding temperature is too high to surface thermal damage and due to self-excited vibration caused by the roughness and accuracy decreased.
Grinding wheel end of the form: Grinding wheel surface passivation - grinding state (will increase the grinding force and grinding heat); wheel clogging (prone to vibration or noise to burns); grinding wheel contour damage (processing accuracy).
Any grinding wheel has a certain period of validity, in the validity period, it is qualified grinding wheel; more than the validity of use, not necessarily qualified grinding wheel. The regulation stipulates that "the grinding wheel should be used within the validity period, the resin and rubber bonded wheel must be rotated for one year after storage, and the qualified person can use it".