Re: [Harp-L] Treating reeds for stress



What you're doing is annealing the metal, or softening it.

I used to do some blacksmithing and you soften the metal by heating it and putting it in a bucket of ashes and allow it to cool slowly.

The opposite is tempering- heat it and cool it fast in
water- this hardens it but can make it brittle so you
have to know what you're doing (the color of the metal
is the key)  Knife makers can tell you about this.

Dan
----- Original Message ----- From: "David Payne" <dave@xxxxxxxxxxxxxxxxxxxxxx>
To: "Harp L Harp L" <harp-l@xxxxxxxxxx>
Sent: Wednesday, September 24, 2008 1:42 PM
Subject: Re: [Harp-L] Treating reeds for stress



On a molecular level, the stress is kind of like putting a jigsaw puzzle together and puting some of the pieces in backwards.

Dave
____________________
Dave Payne Sr.
Elk River Harmonicas
www.elkriverharmonicas.com



----- Original Message ----
From: Cliff Hall <12barz@xxxxxxxxx>
To: harp-l@xxxxxxxxxx
Sent: Wednesday, September 24, 2008 1:22:24 PM
Subject: [Harp-L] Treating reeds for stress

My metallurgical education is zilch. Could somebody explain for any of us
who might be similarly impaired what the "stress" in the reeds actually
consists of? Is it some kind of difference in molecular arrangement? What
kind? Is it measurable? So far, it seems to be relieved by baking but
also by freezing. I wonder if playing Mozart to the reeds might help? Or
maybe some "smooth jazz".

Cliff
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