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 |
WHEEL ACQUIRES SLICK, SHINY APPEARANCE - GLAZED
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Incorrect wheel for particular job.
Consult your grinding wheel manufacturer’s
representative for specific particulars.
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Scale from hardened work dulls wheel grains.
Clean work before grinding. Dress wheel more
often.
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Incorrect dressing of grinding wheel
Turn diamond to avoid fiat spot or replace with
new one. Increase penetration of dressing diamond up
to 0.001". Check slides on truing attachment; they may
be worn low in centre. Truing attachment gibs may be
loose enough to allow diamond to back off instead of
cutting.
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Stock removal too slow when in feed grinding.
Increase infeed rate.
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Coolant incorrect or dirty.
Change coolant. Decrease concentration of soluble
oil. Increase flow of coolant. Clean coolant tank and
machine.
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Coolant gummy.
Change coolant. If water hard, treat with a water
softener before mixing with oil. Increase soda or
decrease oil content of coolant when using soluble
oil.
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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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