Thanks for the reply .
----- Original Message -----
Sent: Tuesday, October 27, 2009 6:09
AM
Subject: Re: [PSUBS-MAILIST] Git
Kraken
Hi Glen. Torch heating your welds won't make a difference in the stress.
You'd need to heat the whole assembly. This can be done with a large oven and
the service is usually available in larger cities with a manufacturing
base.
It's not really worth the cost and effort unless you are planning on
subjecting the weldment/hull to stresses near it's maximum point. With the
typical safety factor of a psub of 1-1/2 times you are allowing enough extra
strength in the hull to avoid the extra work and cost of stress relieving the
entire hull.
I believe the ovens take it up to 1300 F. or so and hold it there for 3
hours, then a gradual cool down lasting 6 or more hours.
Frank D.
No virus found in this incoming message.
Checked by AVG -
www.avg.com
Version: 8.5.423 / Virus Database: 270.14.32/2459 - Release
Date: 10/25/09 19:57:00