[TheForge] RE: Kinyon Hammer Modifications

Thu Dec 26 22:18:00 2002

Bob,

The volume of air blown across the dies/work isn't that great, relatively 
speaking that is.  Also, the work of the hammer is transferring energy into 
the work piece  as well partly or even greatly offsetting any heat loss 
from the air puffs.  Try taking a cold piece of 1/4" rnd or sq stock, lay 
it on your anvil and hammer the end several times.  Then touch it.  Should 
be warm.  Hit it fast and hard and it will get hot enough to ignite paper 
or wood shavings.  I've done it once.  So, the air puffs probably don't 
mean much in the grand scheme of things.

Or so I think.
Dave Brown

At 09:21 12/26/02 -0600, you wrote:
>Steve,
>
>This is an interesting idea. Wouldn't this also promote rapid cooling of
>your work.
>
>Bob Ehrenberger
>Shelbyville, Mo
>
>From: "Stephen McGehee" <[email protected]>
>To: "TheForge" <[email protected]>
>Date: Thu, 26 Dec 2002 00:30:09 -0600
>Subject: [TheForge] Kinyon Hammer Modifications
>Reply-To: [email protected]
>
>I ran a length of 1/8" pipe down from the exhaust of the roller switch
>to a 45 degree ell and a 1" long nipple, directing the air onto my
>bottom die.  Every time the switch changes state a burst of air blows
>scale off the die.
>Stephen McGehee