Page 457 - NORTON cutting-off and grinding wheels - industrial

TECHNICALINFORMATION
457
TECHNICAL INFORMATION
GRINDING WHEELS
WHEEL DOES NOT CUT
Cause Wheel too hard, wheelglazing
Solution Use softer wheel
Cause Not enough pressure
Solution Increase pressure
Cause Machine power too low
Solution Use machine with more power
Cause Loading & wheelglazing (non-ferrous)
Solution Use Norton Alu wheels which counteract loading & wheelglazing
EXCESSIVE WHEELWEAR
Cause Wheel too soft
Solution Use harder wheel
Cause Too much pressure
Solution Reduce pressure, let the wheel do the grinding
Cause Decrease of peripheral speed
Solution Use machine with more power, reduce pressure on the machine
Cause Too low peripheral speed
Solution Max. 80m/sec is optimum speed
CRUMBLED WHEEL EDGE
Cause Grinding angle too flat
Solution Change angle to 30 - 40°
Cause Workpiece is moving
Solution Clamp the workpiece properly
Cause Too much pressure
Solution Reduce pressure, let the wheel do the grinding
CRACKS ON THE BOTTOM OF THE WHEEL
Cause Contact area too large
Solution Reduce contact area
Cause Too much pressure
Solution Reduce pressure, let the wheel do the grinding
UNBALANCE
Cause Dirty flanges
Solution Clean flanges
Cause Wheel mounting insecure
Solution Tighten flanges
Cause Flanges with different diameter
Solution Replace flanges