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Troubleshooting Tips: Thread Grinding

Problem Cause Correction
Breakdown of root width poor thread form Soft, coarse wheel Use finer, hard wheel
Poor coolant flow Direct coolant to point of contact
Poor diamond dress Dress from point to edge of wheel, take lighter dress cuts, replace or tighten diamond
Burning or discolored work piece Poor coolant supply Redirect to point of contact
Too heavy infeed Reduce infeed
Slow work speed Increase infeed
Lead error Wheel deflection
(Resin only)
Use vitrified wheel
N/A Use a thicker resin wheel
N/A Use larger flanges
Poor finish or chatter Diamind lines
(Even scatches)
Use slower diamond feed, or lighter feed
Rough surface Lighten, or slow up work speed
High work speed Slow work speed