[TheForge] Heat treating

[Ron Childers]

When heated beyond critical and forged isn't the elastic memory changed?
Try dfoggknives.com for an answer from someone who knows all about heat
treating. 

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of CraigSchaefer
Sent: Tuesday, December 06, 2011 11:25 AM
To: Bob Ehrenberger; Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] Heat treating



Since springs are made from even larger coils or straight stock, why
don't the springs return to their original shape? 



It's still too early for this. 



Craig 



----- Original Message -----


From: "Bob Ehrenberger" <eforge at centurytel.net> 
To: "theforge" <theforge at mailman.qth.net> 
Sent: Tuesday, December 6, 2011 6:20:33 AM 
Subject: [TheForge] Heat treating 

Paul, 

Most people tend to use the term "tempering" to represent the whole heat

treating process, and don't understand that tempering is just one part
of 
the process. 

I had someone try to tell me that if I used a spring to make tools that
it 
would return to it's curved shape at a later time. I tried to tell him
that 
when I heated it up, it reset it's shape never to return. In the end we
had 
to agree to disagree. You have to decide what you want to fight about,
once 
there is an impass figure out a way to change the subject. It doesn't do

your demonstration any good to argue with the customers. 

Robert Ehrenberger 
Shelbyville, Mo. 
eforge at centurytel.net 

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