Kirk- this is only the 'tip of the iceberg' as it were. I spent a couple of
months working with a local blacksmith who also happens to be a three time
world hand drilling champion trying to help him perfect his hardening and
annealing process for his hand drills. Unfortunately the steel that he bought
turned out to be CHINESE! When I heard that, all I could think of was that
Frank would have been as pissed off as my friend was.
The d*** stuff had sulfur inclusions all through it, so it didn't matter how
well you did your hardening and annealing, there were always flaws not of your
making. He bought the crap from a US company purporting to be a custom
foundry-in the US- Personally I would've taken them to task on it, but that's
me.
Metallurgy was my grandfather's trade, funny how things kind of come back
around.
Mark Haynes
It only goes one way-Pay it Forward
HAN6L12977
HAN5L8016
Please note: message attached
From: Kirk Hargreaves <khargreaves2 at gmail.com>
To: haynes386 at netzero.net
Cc: Spridgets <spridgets at autox.team.net>
Subject: Hardening of Steel
Date: Fri, 19 Aug 2011 09:48:17 -0700
____________________________________________________________
Penny Stock Jumping 3000%
Sign up to the #1 voted penny stock newsletter for free today!
http://thirdpartyoffers.netzero.net/TGL3231/4e4eac678a93b82ad14st05duc
Return-Path: <khargreaves2 at gmail.com>
Received: from mx13.vgs.untd.com (mx13.vgs.untd.com [10.181.44.43]) by
maildeliver08.dca.untd.com with SMTP id AABHE7E8UAE6WPQ2 for
<haynes386 at netzero.net> (sender <khargreaves2 at gmail.com>); Fri, 19 Aug
2011 09:48:18 -0700 (PDT)
Authentication-Results: mx13.vgs.untd.com; DKIM=PASS
Received-SPF: Pass
Received: from mail-yx0-f175.google.com (mail-yx0-f175.google.com
[209.85.213.175]) by mx13.vgs.untd.com with SMTP id AABHE7E8TAXL7NVA
for <haynes386 at netzero.net> (sender <khargreaves2 at gmail.com>); Fri, 19
Aug 2011 09:48:17 -0700 (PDT)
Received: by mail-yx0-f175.google.com with SMTP id 11so257691yxl.6 for
<haynes386 at netzero.net>; Fri, 19 Aug 2011 09:48:17 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com;
s=gamma;
h=mime-version:date:message-id:subject:from:to:cc:content-type;
bh=iMhMGbB8F275JBNlzgjasCbCRGd7MPb5ZC9zgxZsGzg=;
b=I3Zxr3fXv/b7+IkRlrukoogAElWdevhm6hCWUQ+lP7y3ywhaAIhFYyBqoXMOclVgY9
GiZNBIX4+t7s80I91+8NM4oymPsUjeS8W5N7EWZ/OS4IWbbPzDsfG+gxtPmulhNc92rY
/HZ8bmK7p8fqvaoTD6cLEBQLEOnd0eKo2RTTs=
Received: by 10.100.59.3 with SMTP id h3mr2532214ana.77.1313772497394;
Fri, 19 Aug 2011 09:48:17 -0700 (PDT)
Received: by 10.100.139.3 with HTTP; Fri, 19 Aug 2011 09:48:17 -0700
(PDT)
Date: Fri, 19 Aug 2011 09:48:17 -0700
Subject: Hardening of Steel
From: Kirk Hargreaves <khargreaves2 at gmail.com>
To: haynes386 at netzero.net
Cc: Spridgets <spridgets at autox.team.net>
Mark,
Very interesting. I still remember a shop teacher I had in Jr. high.
We would make large chisels and then heat them up in a big oven to be
quickly quenched in a vat of water. Then the teacher would put the chisel
in a vice and try to crack it. Whenever one would crack he would get this
sly smile across this face enjoying the fact that he was able to crack yet
another students chisel. I only knew the basics of this process until your
email to the list. Thanks for sharing.
Kirk
|