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Re: Internal sleeves in butt joints

To: Askotto@aol.com
Subject: Re: Internal sleeves in butt joints
From: drmayf <drmayf@mayfco.com>
Date: Tue, 28 Mar 2006 22:21:50 -0800
Shoot, I am confused..is there a question of rules here? If so, which 
one? Or are you just asking what the general engineering pracice is? Or 
what? And 196 and cahnge is always good..

mayf, easily confused....I am after all in Pahrump

Askotto@aol.com wrote:

>The SCTA rule book doesn't say anything about internal sleeves being  
>required for butt joints in frame tubing. If I were to butt joint a "straight" 
> 
>section of tubing, I would install an internal sleeve with rosette welds and  
>all. 
>What happens when the butt joint isn't a straight line and the tubes join  at 
>say 20 degrees. Obviously a straight sleeve won't slip in a 20 degree joint.  
>Bending the sleeve won't work as the two ends of the tubing won't butt up. 
>What  if the butt joint was a 45 degree angle?
>
>The engineering handbook does  not require or even refer to internal sleeves 
>for butt joints. They only require  the weld be properly made, i.e. full 
>penetration. 
>
>I built a lakester and  had other than straight butt joints, generally 
>between 10 and 20 degrees. I  didn't install sleeves... What do I do now or 
>are 
>sleeves not required on other  than straight butts?
>
>Otto
>
>196.103 at the Texas Mile, apparently in  a death trap. 




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