Listed below are problems, which may be encountered whilst grinding. Possible corrections are used advisedly here. It is practically impossible to establish hard and fast rules for turning out perfect grinding. There are many variables, which must be correctly attuned and an apparently irrelevant one may prove to be cause of trouble experienced. Also, the same cause may produce a varied number of grinding problems.
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Scratch Marks |
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WHEEL ACTION - GRADING Wheel
acts too hard indicated by:
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Loss of
cutting action.
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Wheel loading.
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Work discoloured, burned
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Work chattering.
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Increase work speed (regulating wheel) and pressure.
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Dress with sharp diamond at increased traverse rate.
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Use
thinner coolant; avoid gummy coolants. Increase work
speed; use softer wheel.
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Use
coarser grain size and softer grade.
Wheel
acts too soft indicated by:
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Short wheel life.
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Wheel markings on work.
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Not holding cut.
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Decrease work speed (regulating wheel). Wheel too soft.
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Slow down traverse and work speeds, also work pressure.
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Dress wheel with slow traverse and light penetration.
Take lighter cuts when grinding. Wheel too soft.
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Vibration |
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Chatter Marks |
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Low Ends |
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Low Centre |
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Not Straightened |
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Work Out of Round |
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Faulty Sizing |
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Wheel Loading |
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Wheel Glazed |
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Wheel Grading |
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Wheel Breakage |
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Maintenance Tips |
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/td>
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