metal weights

[Joe And Penny Goss]

Hi Baoli,
Actually iron is .284 per cubic inch titanium is .163 per cubic inch or
rounded off one half as much as iron.
However since titanium is stronger than tempered iron or steel a tool can be
made even lighter and still have the same strength.
Removing weight does not always result in a better tool. Ever try to throw a
ping pong ball at a target? It is much easier with a little more mass that
you can feel. But too much mass ( 16 pound shot putt ) and the advantage of
mass is gone.
Ever try one of those HEAVY factory tuning hammers<G> For use while standing
only?
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message -----
From: "baoli liu" <baoli_liu@yahoo.com>
To: <pianotech@ptg.org>
Sent: Friday, June 07, 2002 10:23 AM
Subject: Re: metal weights


> Hello Leslie,
>
> There is an article about titanium tuning hammer on
> Jan. 2001 Jornal,you probably already read it.
>
> The weight of steel is about 7.8 kilograms each cubic
> centimeter.
> that's about  36 pounds each cubic inches IF I did the
> right caculation.
>
> Baoli
>
>
> --- Leslie W Bartlett <lesbart1@juno.com> wrote:
> > Is anyone aware of the relative weights, to each
> > other, of stainless
> > steel and titanium?  I have made two tuning hammers
> > by having a 1/2 inch
> > stainless bar welded on the hexagonal shaft from
> > suppliers, then grinding
> > a good bit of the stainless down to eliminate
> > weight.  They're still a
> > bit heavy for my liking, but I like very much the
> > way they feel. If I
> > could get the same rigidity with a lighter metal it
> > would be
> > hammer-heaven.................    Would also need to
> > know where one could
> > get such a bar threaded.
> >
> > thanks
> > les bartlett
> > houston
> >
> >
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