Dressing and conditioning with mild steel
Grinding mild steel generates long chips which attack the resin bond around the wheel's periphery thereby opening up the grinding wheel. This is a very simple method to dress and condition resin bonded CBN (and diamond) grinding wheels. Select a low peripheral speed between 16 and 20 m/s (3,200 to 4,000 sfpm). This makes the wheel act soft and reduces the dressing and conditioning time. This method is suited more for the toolshop than a high volume production environment as it is time consuming. This dressing method can be used for surface and cylindrical grinding. Continue grinding the mild steel workpiece until the grinding noise and the visible grinding pattern become regular.
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Surface grinding operating parameters
| Surface speed vc: |
16 to 20 m/s (3,200 to 4,000 sfpm) |
| Table feed rate vw: |
16 to 24 m/min (50 to 75 feet/min) |
| Depth of cut ae: |
0.02 mm (0.0008 inch/pass) |
| Cross stroke ap: |
60 to 80% of wheel thickness | |
OD cylindrical grinding operating parameters
| Surface speed vc: |
16 to 20 m/s (3,200 to 4,000 sfpm) |
| Speed ratio qs: |
60 |
| Depth of cut ae: |
0.02 mm (0.0008 inch/pass) |
| Table traverse feed Vfa: |
30 to 50% of wheel thickness per revolution | |
