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Code Problem
1 Breakage
2 Excessive wear
3 Chattering
4 Poor surface finish
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3
4
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Possible reason Solution
Dirt or burrs in spindle or socket in which reamer is held clean spindle
Misalignment of two or more parts of the set-up.
This condition can cause a bell-mouthed hole align holes or use bridge style reamer
Too fast or too slow speeds adjust
Too much or too little feed adjust
Wrong type of coolant refer to lubricant supplier’s literature
No lubricant between guide bushing and reamer apply
Lack of lubricant increase
Bottoming in blind holes reduce depth travel of reamer
Lack of sufficient stock to ream drill smaller hole
Too much stock to ream drill larger hole
Entering work too fast slow down the approach feed, until all cutting edges are
located in the hole
Badly drilled holes – too rough, tapered or bell-mouthed. Bell-
mouthed holes may cause the reamer to wedge rather than cut replace drill
Oversize or undersize bushings use suitable bush
Lack of rigidity in machine or work holder improve rigidity
Improperly designed reamer for the job use a different reamer
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Application Guide Troubleshooting - Reamers
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