Re: [PSUBS-MAILIST] Welders

["Norm" <nparmley@suddenlink.net>]

Weldments of HY-80 are noted for good ductility, notch toughness and 
strength. It is best welded using the metal-arc process with low hydrogen 
electrodes of Type E-10018 or E-11018. Use approved weld procedures so as to 
not apply too much heat input per inch of weld bead, which would otherwise 
cause degradation of notch toughness. Electrodes should be warmed before use 
to drive off any moisture to avoid hydrogen pick-up in the weld. Preheating 
is not required, except for very heavy section thickness welds or heavily 
constrained welds. Post-heating is not required but a stress relief anneal, 
after welding of sections of 1-1/2" thick or greater, is desirable. However 
the alloy may be used in the as-welded condition. From: 
http://www.suppliersonline.com/propertypages/HY80.asp#General   A good 
source of info.

I am a welder and would suggest taking a class or two at your local vo/tec 
school.  Learning to weld right the first time on a submarine project would 
be best.

Also, you metioned welding on the farm.  I would suggest purchase of 
welder/generator of 8,000 to 10,000 watts "Miller, Lincoln".  Good power 
range and compact.  Around $3,000.00 new or there are used always around. 
Good thing about the welder/generator, it can be used for emergency power!

I hope this helps.
V/R
Norm Parmley 




************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003.  Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.

If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
	removeme-personal_submersibles@psubs.org

Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.

PSUBS.ORG
PO Box 53
Weare, NH  03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************