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  #1  
Old 05-08-2018, 09:13 PM
caapt caapt is offline
 
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Default How do yo compress and flare SS tube?

Working on the exhaust system. 48-03 says fabricate two SS tube. Compress one end and flare the other in a vice. I need more than that. These instructions are rapidly becoming less and less.
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Old 05-09-2018, 07:11 AM
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bkervaski bkervaski is offline
 
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@caapt really, you just squeeze it in a vice to get the approximate dimensions shown. You may be over thinking it a bit. The goal is just to have the end flared enough so that it doesn't slip out of the rubber tube after you clamp it.

Quote:
Compress one end and flare the other in a vice.
You misread that, you are only doing this modification to one end. The vice compression creates a flare. The pic is the same part rotated so you can see what the flare created by the compression in a vice.
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Last edited by bkervaski : 05-09-2018 at 07:13 AM.
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Old 05-09-2018, 11:10 AM
Aircraft Specialty Aircraft Specialty is offline
 
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What material and diameter/wall thickness is that tube?

Thx much
Steve
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Old 05-09-2018, 11:32 AM
scsmith scsmith is online now
 
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Quote:
Originally Posted by Aircraft Specialty View Post
What material and diameter/wall thickness is that tube?

Thx much
Steve
We are not talking about a 37-degree flare here.
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Old 05-09-2018, 12:53 PM
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fl-mike fl-mike is offline
 
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Something "squeezy" (rivet squeezer with flush dies or a vise)
Something "pointy" and a hammer. (a drift punch is one "pointy" tool)

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  #6  
Old 05-09-2018, 12:55 PM
TS Flightlines TS Flightlines is offline
 
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Default UHHHHH

I dont have section 48 of the plans----so what tubes are you talking about? Exhaust hangars?

Tom
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  #7  
Old 05-09-2018, 12:58 PM
Aircraft Specialty Aircraft Specialty is offline
 
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Quote:
Originally Posted by scsmith View Post
We are not talking about a 37-degree flare here.
Steve,

You're right...it's not a 37 degree flare. However, an SAE/Milspec tube bead might be an alternative. Another option would be a DIN bubble flare.

There are other areas in the Vans directions that have you create a 37 degree flare and then sand it down to create the bead.

We are just exploring some alternatives and curious to confirm the material (Stainless) as well as the diameter of the tube and the wall thickness to determine if we can create an additional option for builders.

Here is a sample picture of what I am talking about. We didn't do these beads, but it illustrates what I am referring to.


Steve
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Last edited by Aircraft Specialty : 05-09-2018 at 01:01 PM.
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Old 05-09-2018, 02:24 PM
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bkervaski bkervaski is offline
 
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It's just compressing the end of the exhaust support tubes ..

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  #9  
Old 05-09-2018, 05:36 PM
Ron B. Ron B. is offline
 
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I actually made a small flare in the end with the pointy thing and a hammer (center punch and hammer). Put the solid end (before flattening it out) on your vise on a flat spot with the end needing flaring pointing up. Put the center punch in the open hole and lightly tap the punch until the flare you want is made. You just need enough so the rubber hose does not slide off after clamped in place. You can now flatten the other end and drill the bolt hole in it.
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  #10  
Old 05-09-2018, 07:08 PM
caapt caapt is offline
 
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Default I was overthinking it

Once Sterling told me the drawing was two views of the same tube it became clear. Just pinch the end in a vice. I thought one tube was flared and one compressed.
Thanks for the help
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