[TheForge] spring temper for brass question

Thu Mar 11 17:09:01 2004

This is the basic theory of tempering brass instruments.  There are a 
lot of ways that people artificially "age" the instrument to achieve 
this effect.

Charles

Jerry Frost wrote:

>Work hardenable metals can be hardened with vibration. Place a speaker on
>it's back and place the part to be hardened on the speaker face. Secure it
>with tape, rubber bands, etc. so it stays put. Then play bassy music,
>checking at regular intervals till it suits your needs.
>
>If you over harden it, anneal and do it again. Keeping notes is important.
>Different alloys take different lengths of time and probably prefer
>different music.
>
>A more sophisticated approach would be to test for the resonant frequency of
>a particular material and duplicate it or the proper multiple/fraction(?)
>for best effect.
>
>A road trip in the trunk of a car on a gravel road will do the same thing
>but is less controlled though more fun. <grin>
>
>Frosty
>------------------------
>If it ain't forged
>it ain't real.
>Wrought iron is.
>The FrostWorks
>
>Meadow Lakes, AK.
>
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