Re: I had a sort of opposite problem
That is interesting - 'They don't look right" so don't want em. Sheesh
Am interested as to what the 'shot peen' process involved. Am guessing that
peen means 'hitting' & shot implies using ball bearings to do the hitting ? am also guessing that
this was a hardening process after machining.
Cheers
Doug
UPDATE#1
LOOKED IT UP ON THE WEB ...
Shot Peen Forming [link|http://www.curtisswright.com/segments/metal_treatment/shot_peen_forming.asp|Shot Peen forming]
Peen forming is a dieless forming process performed at room temperature. During the
process, the surface of the workpiece is impacted upon by small, round steel shot.
Every piece of shot impacting the surface acts as a tiny peening hammer, producing
elastic stretching of the upper surface and local plastic deformation that manifest
itself as a residual compressive stress. The surface force of the residual compressive
stress combined with the stretching causing the material to develop a compound,
convex curvature on the peened side.
Parts formed by peen forming exhibit increased resistance to flexural bending fatigue.
Another distinct advantage with peen forming, unlike most other forming methods, it
that all surface stresses generated are of a compressive nature.
