re:Re: cast iron (stress relieving)

Dave,

This is good news!

The vibrator you spoke of-- How did it compare with a vibratory
tumbler (in magnitude of shake)?

I used to use one for "settling" poured concrete tiles. Is this the
type of thing you're talking about?

Thank you in advance.

Ballendo

P.S. What about putting them(castings) in the back of an old pickup
and driving over rough roads? What I'm really asking here is: How do
you know when you're "done"?

> Thermal cycling, mechanical vibration, etc all will work, if you
> move enough distance to slip the stresses out<snip>

> The shop I used to work at had a rig with a vibrator that shook it
> and relieved most of the stresses in one night.
> The cheapest way I know to relieve stresses is to put the casting
> on a resilient support (inner tubes or springs) and pound it all
> over with a hammer.
> Dave.