1. Causes and solutions for uneven or non-parallel workpiece surfaces
◆ Too much feed: reduce feed, especially during fine grinding
◆ Workpiece burns: use the correct particle size and hardness
◆ Workpiece residual stress: eliminate residual stress before fine grinding
◆ Electromagnetic clamp is dirty: clean the electromagnetic clamp before fine grinding
◆ Surface grinding wheel axis is not adjusted properly: readjust to make the grinding wheel axis parallel to the table
2. Causes and solutions for scratches on the workpiece surface
◆ Coolant is not clean: clean the cooling tank or replace the coolant
◆ Surface grinding wheel is too soft: use a harder grinding wheel
◆ Surface grinding wheel is too coarse: use a harder grinding wheel or slow down the grinding wheel dressing speed
◆ Dressing problem: check the dressing device
3. Causes and solutions for vibration marks on the workpiece
◆ Spindle bearing wear: Check the spindle bearing
◆ Surface grinding wheel has runout: Re-dress the grinding wheel and check the installation
◆ Surface grinding wheel is too hard: Use a softer grinding wheel
◆ Surface grinding wheel structure is too tight: Use a grinding wheel with a more open structure
◆ Clamping is loose: Check the flange bolts
4. The workpiece is burned or stopped during grinding
◆ Surface grinding wheel is too hard: Use a softer, coarser or more open structure grinding wheel
◆ Table speed is too slow: Increase the table speed
◆ Grinding contact area is too large: Reduce the traverse speed
◆ Surface grinding wheel is too fine: Make the grinding wheel coarser
◆ Infeed is too large: Reduce infeed
◆ Coolant flow is too small: Increase coolant flow
