RE: [Harp-L] Fatigue and reed life

["Aongus MacCana" <amaccana@xxxxxxxxxx>]

Hi Vern,
I guess it would and as soon as you took any retuning cuts on the reed you
would undo any possible benefits.
My instinct (like yours) is that work on the root of the reed, (in other
words tuning down) would be more detrimental because that is where the
maximum bending moment and maximum stress would occur. At the tip of the
reed it would be relatively stress free.
Beannachtaí
Aongus

-----Original Message-----
From: Vern Smith [mailto:jevern@xxxxxxx]
Sent: 17 April 2008 22:33
To: Aongus MacCana; Harp-L List
Subject: Re: [Harp-L] Fatigue and reed life


----- Original Message -----
From: "Aongus MacCana" <amaccana@xxxxxxxxxx>
To: "Harp-L List" <harp-l@xxxxxxxxxx>
Sent: Thursday, April 17, 2008 11:18 AM
Subject: [Harp-L] Fatigue and reed life


> ..................They also compress
> the outer surface of such components by shot peening them (bombarding them
> with steel shot)but this does not look like a feasible strategy for
> harmonica reeds.
> Aongus Mac Cana

Bead-blasting, the same peening process but with very small glass beads,
might be feasible on reeds.  Tuning to lower pitch would spoil the effect,
if any.  Do you think that peening might alter pitch?

Vern
Visit my harmonica website www.Hands-Free-Chromatic.7p.com





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