Fabrication and inspection of tight tolerance bushing
Fabrication and inspection of tight tolerance bushing
(OP)
Need to make some tight tolerance bushings with a .120" ID +/- .00015. The question is we do not have an ID grinder and even if we did, not real sure how you grind such a small ID.
I am not sure if we can hold that tolerance with the drill/ream method but just maybe. In addition, the spec calls for an HRC 58-62. I am concerned of my tolerances going all funky with HT so considering hard turning that but never turned something that hard before. Even if we could get the work done, I am not real sure how to inspect something like that.
We could of course send these out but we have more coming and would be nice to keep the business in house.
I am not sure if we can hold that tolerance with the drill/ream method but just maybe. In addition, the spec calls for an HRC 58-62. I am concerned of my tolerances going all funky with HT so considering hard turning that but never turned something that hard before. Even if we could get the work done, I am not real sure how to inspect something like that.
We could of course send these out but we have more coming and would be nice to keep the business in house.





RE: Fabrication and inspection of tight tolerance bushing
RE: Fabrication and inspection of tight tolerance bushing
RE: Fabrication and inspection of tight tolerance bushing
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: Fabrication and inspection of tight tolerance bushing
toolpost grinder +
Borazon grinding pins +
patience.
Mike Halloran
Pembroke Pines, FL, USA
RE: Fabrication and inspection of tight tolerance bushing
RE: Fabrication and inspection of tight tolerance bushing
Otherwise an air micrometer will probably do the trick.
Matt Coughlin
Ipsum Engineering
http://www.IpsumSD.com
RE: Fabrication and inspection of tight tolerance bushing
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: Fabrication and inspection of tight tolerance bushing
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.