Piano wire tensile strength

[Carl Meyer]

It's elementary, my dear Watson.  Twisting the wire work hardens it and 
therefore it is stronger.  Anyway, that's as good as any for a reason.

Carl Meyer PTG assoc
Santa Clara, Ca.


----- Original Message ----- 
From: "Delwin D Fandrich" <fandrich@pianobuilders.com>
To: "'Pianotech'" <pianotech@ptg.org>
Sent: Saturday, June 25, 2005 11:41 AM
Subject: Piano wire tensile strength


>
> I just read something in an old report I've been looking at that strikes 
> me as
> odd. Basically it says that piano builders put as many as three or four 
> twists
> in bass strings to increase the tensile strength of the core wire.
>
> Does this ring any bells? Does anyone know of a piano manufacturer doing 
> this
> (twisting bass strings this much)? Is anyone out there metallurgist enough 
> to
> know if there is any validity to this claim?
>
> Del
>
> Delwin D Fandrich
> Piano Design & Fabrication
> 512 Hanna Avenue
> Aberdeen, Washington 98520
> USA
> Phone  360.532-2563
> Fax  360.537-1262
> <mailto:fandrich@pianobuilders.com>
> <http://www.pianobuilders.com>
>
>
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