Page 456 - NORTON cutting-off and grinding wheels - industrial

456 TECHNICAL INFORMATION
TECHNICALINFORMATION
TROUBLESHOOTING
CUTTING OFF WHEELS
WHEEL DOES NOT CUT
Cause In case of blue cutting: wheel too hard or too thick
Solution Use softer or Norton Thin Cut wheels, check peripheral speed
Cause Peripheral speed too low
Solution Increase rpm up to max. (80m/sec)
EXCESSIVE WEAR
Cause In case of white cutting edge: wheel too soft
Solution Use harder wheel
Cause Operating speed too low
Solution Increase rpm up to max (80m/sec)
Cause Decrease of rpm during cutting
Solution Use machine with more power, reduce pressure on the machine
CRUMBLED WHEEL EDGE
Cause Cutting-off wheel used for grinding operations
Solution Use a grinding wheel for grinding operations
Cause Workpiece is moving
Solution Clamp the workpiece properly
Cause Too much side-pressure
Solution Add only the radial pressure to the wheel
ARBOR HOLE OR CENTRE BREAK OUT
Cause Wheel sticks in the workpiece/material
Solution Use more radial pressure & swing the wheel forwards and backwards
Cause Cutting-off wheel used for grinding operations
Solution Use a grinding wheel for grinding operations
Cause Too much side pressure
Solution Add only the radial pressure to the wheel
Cause Different diameter top/bottom flange
Solution Use flanges with the same diameter