Author Topic: Tube splice length  (Read 1844 times)

Offline msundstrom

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Tube splice length
« on: July 09, 2016, 11:32:05 AM »
When spicing two tubes of the same diameter with an inside tube sleeve is there a minimum length for the inside tube, I found lots of aircraft info but don't know if that applies to dragsters?
Thanks
Mark S

Offline fuel749

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Re: Tube splice length
« Reply #1 on: July 09, 2016, 11:44:35 AM »
Minimum 3" on either side of the joint. Plug welds within 1/2" of the end of interior tube. 1/4" diameter minumum. I make the plug weld holes a little bigger, I like to see the interior tube after I weld it.

Offline dreracecar

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Re: Tube splice length
« Reply #2 on: July 09, 2016, 01:13:00 PM »
You should also split the inner sleeve so that it expands and takes up any slop between the 2  that you are splicing together

Offline msundstrom

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Re: Tube splice length
« Reply #3 on: July 09, 2016, 03:22:24 PM »
Split one side and spread it out?

Offline dreracecar

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Re: Tube splice length
« Reply #4 on: July 09, 2016, 03:51:55 PM »
Because the tubing is under tension anyway it will expand on its own

Offline msundstrom

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Re: Tube splice length
« Reply #5 on: July 09, 2016, 07:09:00 PM »
Makes sense. Thanks for the help