Spiral Welding

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Interesting video on spiral welding on windmill towers.
Reply:That is pretty cool. I wonder how they hold tolerance on the diameter. May not be a big issue with windmill towers.Weld like a "WELDOR", not a wel-"DERR"

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Reply:The video look like they welded sheets together then roll into a tube. If I did I would use coil that you buy in 5 foot to 8 foot wide. Dave

Originally Posted by shovelon

That is pretty cool. I wonder how they hold tolerance on the diameter. May not be a big issue with windmill towers.
Reply:That is cool, I've seen some old pipe that was made that way, but I don't think it was an automatic welding system.NRA LIFE MEMBERUNITWELD 175 AMP 3 IN1 DCMIDSTATES 300 AMP AC MACHINELET'S GO BRANDON!"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.” BENJAMIN FRANKLIN
Reply:Cool video, wish we could see what process they used for welding.   Probably Dual shield.We've done so much, for so long, with so little. Were now qualified to do anything with nothing !