On Wed, 16 Nov 1994, Colin Brace wrote:
> Also, in the spirit of Tuftriding, in Lindsay Porter's B-Series
> engine book, he states that the "crankshaft fillets must be
> radiused" so that the crank will not break. Could someone translate
> this into American?
>
> Colin WA1KWA
>
It would be the same in american. The issue is how to make the transition
from the horizontal surface upon which the rod or main bearing rests and
the vertical surfaces adjacent to the bearing surface. If this is a
abrupt 90 degree transition, a crack is likely to start in the sharply
angled region. If the transition is radiused, a crack is less likely:
Contrast:
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Bad Good (good idea, bad ascii drawing)
Ray Gibbons Dept. of Molecular Physiology & Biophysics
Univ. of Vermont College of Medicine, Burlington, VT
gibbons@northpole.med.uvm.edu (802) 656-8910
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