[TheForge] Re: Test mail

[Stephen Viola]

I'm not sure about the scientific detail, but I do know that way back
when, the making of springs for buggies and carriages were hammered
hard and not heat treated. So there must be some truth to the
compacting of grain or atoms. Blacksmiths have been doing it for
centuries. At college we are taught that the compression of atoms
occur when hammered. Thats not to say that other material is
displaced, just that there seems to be some kind of allowance for the
metal to become harder with the compression. Like I said I don't know
the scientific blah blah, but thats the understanding I have.

Stephen (Finland)

On 11/11/05, Erik Gutfeldt <erikg at apple.com> wrote:
>
> On Oct 31, 2005, at 4:59 AM, Bruce Freeman wrote:
>
> > I do vaguely remember his discussion about "packing the edge" of a
> > knife.  Pure nonsense.
>
> I thought the metallurgical effect of "packing" was to reduce grain
> size.
>
> Erik
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