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Re: Information on US Warship Welding prior to 1943
Normally after 1943, the speed of welding was faster than riveting, however, the sheer strake, in the .4L, was riveted to prevent crack propagation, i.e., crackstopper where the ships hull stress is greatest.
This is probably a vain request, but I was wondering if anyone knows of any any resources on welding ships prior to 1943. I suspect little exists.
The welding techniques employed on U.S. warships during these early days appear quite bizarre by today's standards.
Where today, if you wanted to join two plates end-on-end, you'd create some kind of recess for the weld bead then join the plates directly togethers.
In US warships of this area, you find that some cases that same method was followed but in many others, they would weld a seamstrap over the joint on both sides (like you would do if riveting) which produces a joint that is more labor intensive, weighs more, and is less strong than just welding to two plates together. In many cases, two straps were welded over joints, one on top of the other.
Some joints that were riveted on USS Iowa were welded on USS New Jersey. Some joints that were riveted on USS New Jersey were welded on Missouri and Wisconsin. On USS Kentucky and USS Illinois nearly all joints were welded.
I was wondering if anyone had encountered documentation on what the thought process was during this transition period.
I add, that such seamstraps were usually scalloped to give a larger welding surface. I have found documentation noting that that US Navy ships made extensive use of scalloping in riveted seamstraps going back to WWI that saved a great deal of weight resulting increased speed in destroyers and cruisers vis-a-vis similar UK warships.
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