Pietenpol-List: splicing steel tubing

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Pietenpol-List: splicing steel tubing

Post by matronics »

Original Posted By: "David B. Schober"
I am just a little bit curious about how to,...or if it is permisable to take my scraps of steel tubing and splice two pieces together, so to make one, then weld it into my fuselage as a structural part.The material I'm using is 3/4x 035, and I'm thinking that I could cut a piece of tube maybe 6" long in half lengthwise then weld the halfs to the main tubes for a structural splice.Slip a piece of smaller tube inside the tubes to be spliced, then weld it in.Does anybody have any suggestions ?________________________________________________________________________________
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Pietenpol-List: Re: splicing steel tubing

Post by matronics »

Original Posted By: Ian Holland
Subject: Pietenpol-List: Re: splicing steel tubing>AC 43.13-1b has all the specs for "accepted" methods of splicing structural>tubing. If you use that as a guide, you won't go wrong. If you don't haveAC>43.13-1b, it's available on the FAA web site http://www.faa.gov>>oil can wrote:>>> I am just a little bit curious about how to,...or if it is permisable to>> take my scraps of steel tubing and splice two pieces together, so to>> make one, then weld it into my fuselage as a structural part.>>>> The material I'm using is 3/4x 035, and I'm thinking that I could cut a>> piece of tube maybe 6" long in half lengthwise then weld the halfs to>> the main tubes for a structural splice.>>>>>> Slip a piece of smaller tube inside the tubes to be spliced, then weld>> it in.>>>> Does anybody have any suggestions ?>>>>>-->**>>David B.Schober, CPE>Instructor, Aviation Maintenance>Fairmont State College>National Aerospace Education Center>Rt. 3 Box 13>Bridgeport, WV 26330-9503>(304) 842-8300>>________________________________________________________________________________
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Pietenpol-List: Re: splicing steel tubing

Post by matronics »

Original Posted By: David B. Schober
Mr Schober is right! This is the only legal way to do it and it does work.AC43.13 is the "bible" for repairs and FAA approved methods...........-----Original Message-----
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Pietenpol-List: Re: splicing steel tubing

Post by matronics »

Original Posted By: Earl Myers
AC 43.13-1b has all the specs for "accepted" methods of splicing structuraltubing. If you use that as a guide, you won't go wrong. If you don't have AC43.13-1b, it's available on the FAA web site http://www.faa.govoil can wrote:> I am just a little bit curious about how to,...or if it is permisable to> take my scraps of steel tubing and splice two pieces together, so to> make one, then weld it into my fuselage as a structural part.>> The material I'm using is 3/4x 035, and I'm thinking that I could cut a> piece of tube maybe 6" long in half lengthwise then weld the halfs to> the main tubes for a structural splice.>>> Slip a piece of smaller tube inside the tubes to be spliced, then weld> it in.>> Does anybody have any suggestions ?>--David B.Schober, CPEInstructor, Aviation MaintenanceFairmont State CollegeNational Aerospace Education CenterRt. 3 Box 13Bridgeport, WV 26330-9503(304) 842-8300________________________________________________________________________________
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Pietenpol-List: Re: splicing steel tubing

Post by matronics »

Original Posted By: Michael D Cuy
Take a quick look at where the splices will be. Each time you do that,you are adding weight. The "Acceptable Methods" has considerable overlapof the pieces. Near the tail could affect your CG. If you are justplanning on doing one or two joints, I would spring for the new tubing.It is still fairly cheap. Just my thoughts on it.________________________________________________________________________________
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Pietenpol-List: Re: splicing steel tubing

Post by matronics »

Original Posted By: Eli or Robert or Teresa Bozeman
The proper way to do what you are attempting is the cut the larger piece at anangle of 30-45 degrees and insert the smaller piece inside. The 2 outer pieceswill need to have a space pf approx 1/8 inch so all 3 pieces an be welded together.Then for additional strength you can ( not req'd) go apprx 2 inches from theweld and drill a 1/8 - 3/16 inch hole in the outer tube and weld the innerpiece of steel to the outer piece of tubing________________________________________________________________________________
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