[CR]Re: frame longevity vs. stiffness

(Example: Framebuilding:Restoration)

From: <NortonMarg@aol.com>
Date: Mon, 1 Jul 2002 20:16:34 EDT
To: classicrendezvous@bikelist.org
Subject: [CR]Re: frame longevity vs. stiffness

In a message dated 7/1/02 3:38:41 PM Pacific Daylight Time, GPVB1@cs.com writes:

<< What exactly are "soft joints?" What do you think yields when you cold set a
   lugged steel frame? It's not the joints, it's the tubing (it's bending, or
   worse, buckling in some cases). >> It is the tubing in the heat affected zone (joint) that moves. It's all glued together and equally weak, so it's hard to say exactly what is moving. All I can tell you is that some frames offer little or no resistance to cold setting. Something is soft and logic dictates it's the part that was hot that has lost considerable strength. The same tubing, silver brazed makes a different beast. Alignment tables are quite educational. Stevan