[TheForge] Welding advice -- Now Heavy Welds

[gblacksmith]

Ship Folks:  I had also heard that the stress cracking of Liberty Ship hull 
and bulwarks plating was caused, in large part, because of oxidation of the 
welds; due to lack of effective gas shielding provided by early SMAW 
electrodes.  Anybody out there know the whole story?

The oldest cutter in the USCG fleet, the USCGC Storis, launched in 1938, was 
of riveted construction.  She has taken much pounding in Alaskan waters, and 
is still going strong.  Lots of crop-and-renew plating work, but still over 
an inch of steel plating left at the rudder post.  Grant
----- Original Message ----- 
From: "James Binnion" <jbin at well.com>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Wednesday, March 02, 2005 6:34 PM
Subject: Re: [TheForge] Welding advice -- Now Heavy Welds


> The watertight hull plates were indeed riveted together. The armor was 
> "hung" on the outside of the watertight hull via bolts . On that same 
> website you can see the armor being machined to fit together with 
> overlapping seams http://www.usswashington.com/pnybuild/pny_46.htm  and in 
> this one the keyhole slots that were used to lock the plates in place are 
> being cut. http://www.usswashington.com/pnybuild/pny_47.htm
>>OK so they are heavy rivets.
>>Chuck
>>----- Original Message ----- From: "James Binnion" <jbin at well.com>
>>To: "Sponsored by ABANA" <theforge at mailman.qth.net>
>>Sent: Wednesday, March 02, 2005 11:40 AM
>>Subject: Re: [TheForge] Welding advice -- Now Heavy Welds
>>
>>>Armor plate was bolted in place. see 
>>>http://www.usswashington.com/pnybuild/pny_55.htm and
>>>http://www.usswashington.com/pnybuild/pny_56.htm
>>>
>>>>In the 20's ships hull plates were riveted not welded. It wasn't till 
>>>>the 40's before the process to weld hulls was perfected enough so that 
>>>>the hulls could flex enough in heavy sea states so they wouldn't stress 
>>>>crack and fail.
>>>>Chuck
>>>>----- Original Message ----- From: "Andrew Vida" <osan at netlabs.net>
>>>>To: "Sponsored by ABANA" <theforge at mailman.qth.net>
>>>>Sent: Tuesday, March 01, 2005 6:59 PM
>>>>Subject: Re: [TheForge] Welding advice -- Now Heavy Welds
>
> -- 
> Jim Binnion
>
> James Binnion Metal Arts
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