FLEXOVIT INDUSTRIAL Catalogue 2017

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BONDED
ABRASIVES
234
TROUBLESHOOTING
Regular spaced chatter marks
Immediately after dressing
Cause Machine vibration
Solution Check for wear in machine bearings
Regular spaced chatter marks
After a period of time
Cause Wheel too hard
Solution Use softer grade of wheel
Chequered pattern
Cause Wheel out of balance
Solution Balance wheel
Chatter marks
Cause Wheel out of truth
Solution Re-dress wheel
Irregular chatter marks
Cause Wheel mounting insecure
Solution Tighten wheel mounting
Cause Workpiece centres loose
Solution Adjust centres
Irregular surface scratches
Cause Wheel too soft
Solution Use fine dress. Reduce workspeed. Use harder grade wheel
Cause Coolant dirty
Solution Replace coolant. Check filtration
Spiral marks
Cause Dressing techniques
Solution Check diamond is sharp and secure
Cause Dressing techniques
Solution Check dress is parallel
Finish too coarse
Cause Grit size too coarse
Solution Use fine, slow traverse dress
Cause Wheel too soft
Solution Decrease workspeed. Use harder grade wheel
Cause Metal pickup on wheel
Solution Dress more frequently. Use more open, softer grade wheel
SOLVING SURFACE FINISH PROBLEMS
Many problems associated with grinding relate to surface finish defects. The following chart describes some
common surface finish problems, shows the probable causes and suggests remedies to cure the problem.
TECHNICAL INFORMATION