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Race Car Fabrication There is a lot of cool fabriaction going on the race car industry, show us what you got.


Race Car Fabrication There is a lot of cool fabriaction going on the race car industry, show us what you got.

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  #1  
Old 01-23-2016, 04:16 PM
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Defender Chassis Defender Chassis is offline
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How To Splice Chassis and Roll Bar/Cage Tubing

This subject comes up frequently enough that I thought it would be beneficial to put together a short video consolidating the information. The information referenced in the video is detailed with links in the description on the video's YouTube page. If you like this video and would like to see more content like this then give it a thumbs up. Feel free to subscribe to the Defender Chassis page so you will get alerts to new videos as they come out.

https://www.youtube.com/embed/esQu5DtSHlY
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Old 01-24-2016, 09:48 AM
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Ladderbar Ladderbar is offline
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Good deal. Thank you.
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Old 01-25-2016, 10:38 PM
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joanne joanne is offline
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I stumbled across this video a few months ago. Although it's OLD, there is some good information presented.

Repairing Structural Tubing (Aircraft)

Joanne
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Old 01-26-2016, 11:25 PM
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Rokcrler Rokcrler is offline
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thanks for the info! on some chassis splices ive seen or had to do, external splicing would have been better. I'll have to implement this on the latest build.
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Old 01-27-2016, 09:00 AM
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Graham08 Graham08 is offline
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Good demo of the process. I tend to do internal splices just because that's what I'm accustomed to seeing, plus with the cars I'm working on, the added material for an external splice tends to cause interference with fitting the bodywork or other problems. I like the reference to aircraft standards, IMO, they're the best place to start for most race car work.

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Old 01-27-2016, 12:19 PM
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JaysinSpaceman JaysinSpaceman is offline
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Good stuff here, thanx for posting it.

I teach my students in my fab class how to do repairs like this. We talk about both inside and outside splices. As well as the correct angles to cut the ends of the tubing and methods of welding.

I also talk about ways to repair C-channel with Fishplates to strengthen repaired joints.

Many people seem to think that you can just cut out and butt weld in new sections and it's good as new. And I really just "love" to see where people butt weld and then grind the weld reinforcing off so that you "can't see the repair".

Thanx again for posting this up.

And thanx to Joanne as well for the old Aircraft repair film. I really like how much the narrator stresses the accuracy of fitting the new tube and internal sleeves.

Jaysin
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Old 01-27-2016, 07:12 PM
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alwaysFlOoReD alwaysFlOoReD is offline
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re; the old repair film. I was surprised at how much slop was in the splice. I realize there has to be some to be able to slide it back but...
What would be the normal play between the inside and outside tube?
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Old 01-27-2016, 07:16 PM
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Defender Chassis Defender Chassis is offline
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Quote:
Originally Posted by alwaysFlOoReD View Post
re; the old repair film. I was surprised at how much slop was in the splice. I realize there has to be some to be able to slide it back but...
What would be the normal play between the inside and outside tube?
4-96 says: "The clearance between inside
diameter of the sleeve and the outside diameter
of the original tube may not exceed 1/16 inch."

It is the same for an internal sleeve as well.
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Old 01-28-2016, 07:28 AM
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I have always fit them tighter than that, since I had to turn them to the correct diameter anyway. But, there are a lot of situations where it would be really handy to have the extra clearance to get things in place.
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