In a message dated 03/15/2000 12:37:18 PM Pacific Standard Time,
technical@iwnet.screaming.net writes:
<< Unfortunately once the shaft has been finished it is too late to improve
the
hardness as the hardening process creates scale and can cause the component
to change shape / straightness, there may be scale free methods but it seems
to me they would need to be very specialised (oxygen free) and therefore
possibly a lot more expensive. When they make these things they are
machined, drilled, hardened then ground to final size. The only way to
improve would be to have one made from scratch, not difficult if you can >>
Anybody know anything about the new cryogenic hardening? I read in some
hotrod mag that this is the way to go to harden crankshafts.
R. Houston
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