Hardness of the abrasive wheel off the ease of

The hardness of abrasive grinding means ease of shedding, guaranteed by the strength of the binder, they blocked the grinding wheel greater impact. The higher adhesive strength, wheel hardness greater, the amount of the more blunt abrasive, abrasive workpiece before shedding scratch, squeezing even more serious debris easier  Abrasive grinding wheel  filled into the pores to wheel, wheel debris in the gap exacerbated the friction wheel on the workpiece material, extrusion, while the debris can be strengthened in this process, this process is accompanied  Polycrystalline diamond  friction heat, friction heat is provided frit bonding material blockage. Therefore, the higher the hardness wheel, blocking more serious. So grinding hard  abrasive wheels  materials should be selected softer wheel.
Organization reflects abrasive wheel, binder, the ratio between the pores, the more dense tissue, the smaller the percentage porosity, the smaller the distance between the cutting edge, the grinding wheel is more easily blocked. Containing 53% of the abrasive grit grinding wheel of 49.2% compared with the average amount to be twice as high congestion, with 45% abrasive grit grinding wheel of 49.2% compared with an average less than half the amount of blockage.