First, there are scratches on the surface of the vitrified grinding wheel
1. The vitrified grinding wheel is too soft: use a harder grinding wheel.
2. The grinding wheel is too coarse: use a harder grinding wheel or slow down the grinding wheel dressing speed.
3. The coolant is not clean: clean the cooling tank or replace the coolant.
4. Dressing problem: check the dressing equipment.
Second, the surface of the vitrified grinding wheel is uneven or not parallel
1. The workpiece is burned: use the correct particle size and hardness.
2. The electromagnetic clamp is dirty: clean the electromagnetic clamp before fine grinding.
3. The residual stress of the workpiece: eliminate the residual stress before fine grinding.
4. The vitrified grinding wheel axis is not adjusted properly: readjust the grinding wheel axis to make it parallel to the table.
5. The feed amount is too large: reduce the feed amount, especially in the fine grinding stage.
Third, the vitrified grinding wheel has vibration marks
1. The vitrified grinding wheel is too hard: use a softer grinding wheel.
2. The clamping is loose: check the flange bolts.
3. The spindle bearing is worn: check the spindle bearing.
4. The grinding wheel is arranged too tightly: use a grinding wheel with a more open arrangement structure.
5. The grinding wheel is vibrating: re-dress the grinding wheel and check the installation.
