The main differences between smooth grinding and general grinding are as follows:
1. The grain size of the grinding wheel is relatively fine, generally ranging from 46 # to 60 # during grinding, and from 60 # or above to w10 # during smooth grinding.
2. The linear speed of the grinding wheel is relatively low, reaching 12-20m/s.
3. The worktable speed is slow during grinding wheel dressing, reaching 10-25mm/m.
4. The lateral feed rate is relatively small, usually 0.02-0.05mm; During finishing, it is 0.0025-0.005mm.
5. The workpiece line speed is low, usually 20-30m/min during grinding and 4-10mrn/m during finishing.
6. Non sparking grinding has a high frequency of 1-2 times, while finishing machining requires 10-20 times. Finishing grinding is suitable for machining different machine tool spindles, key shaft sleeves, rollers, plug gauges, bearing rings, etc.