Pietenpol-List: How much weld is needed for lift strut?

matronics · Post by **matronics** » Sun Nov 27, 2005 11:11 pm

Original Posted By: lshutks(at)webtv.net (Leon Stefan)
Can someone tell me the secret to "wrapping" the 1" X 13ga strip "around" the tubingin the upper strut fitting per the attached detail?Seems that this process would put a lot of stress on the 13ga, but maybe if it'sdone right, it's ok...So I'm thiniking just heat up the strip and wrap it around the tubing then usinga vise or some kind of clamp, squeeze the strip "tight" right up next to thetubing...all the while keeping it red hot...hmmm.Also, if the gap between the wing attach strips is 1" and the fitting is 1", thensome weld would increase the fitting to more than an inch...in which case theweld would have to be ground down...is grinding down the excess (over 1" thick)acceptable in this case?Am I right or is there another (better) way to do this?ThanksJim in Plano...________________________________________________________________________________ ETAsAhRxdNs9fyUPy6gUqz+si0zDr2SMVgIUFrwgoaKxV4zadD3+SNsugrzb6qM=

matronics · Post by **matronics** » Mon Nov 28, 2005 7:24 am

Original Posted By: Jim Markle
Hey Jim,These are the most difficult steel parts on the whole project. I struggled withbendingred hot steel around tubing and I was not successful.I finally made up dies and formed the parts in a hydraulic press.It was two-step process. Bend them into a U shape first, then squeeze them intothe final shape around a piece of tubing. It took a 20 ton press.The width of the fitting will have to allow for final welding and grinding.Greg CardinalMinneapolis ----- Original Message -----

matronics · Post by **matronics** » Mon Nov 28, 2005 8:17 am

Original Posted By: Michael D Cuy

Brodhead Pietenpol Association