Posted by Ultradog MN on October 17, 2011 at 17:33:47 from (70.57.147.54):
In Reply to: OT: Welding posted by oldtanker on October 17, 2011 at 10:10:28:
Great thread. Yes electric arc welding was still pretty new at the beginning of the war. But all of the major navys were experimenting with it and most had succeded by the middle of WWII. The Japanese were very early using it as a weight saving measure - Mid 30s? -because they were desperate to save weight. Trying to cram more weaponry into their Treaty Cruisers. Think about how a welded butt joint is less weight than a lap joint with rivitts. Less water resistance too. From early on in the war all the Tin Cans were welded and virtually EVERY one of the Liberty Ships were welded. The Liberty ships did have problems with the welds and several of the earliest ones simply broke in half and sank. By the end of the war pretty much everything was being welded where rivitts were used before. Trains, ships, tanks, trucks. By October 44 when your dad went to the Phillipines the ships - probably 70% of them were brand new - Tin cans, Battleships, carriers, cruisers and the vast array of support vessels. Virtually all of them were welded. October is the anniversary of when we went back to the Phillipines btw. Leyte Gulf and all that. Not much mention of it in the news any more but if you want a good short synopsis of it...
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