FrontEngineDragsters.Org Forum

Technical => Roo Man's Room => Topic started by: msundstrom on July 09, 2016, 11:32:05 AM

Title: Tube splice length
Post by: msundstrom 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

Title: Re: Tube splice length
Post by: fuel749 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.

Title: Re: Tube splice length
Post by: dreracecar 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

Title: Re: Tube splice length
Post by: msundstrom on July 09, 2016, 03:22:24 PM

Split one side and spread it out?

Title: Re: Tube splice length
Post by: dreracecar on July 09, 2016, 03:51:55 PM

Because the tubing is under tension anyway it will expand on its own

Title: Re: Tube splice length
Post by: msundstrom on July 09, 2016, 07:09:00 PM

Makes sense. Thanks for the help