907
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| posted on 24/12/08 at 10:43 AM |
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2" Tube Swage
Hi All,
I have a little homework job on at the moment that involves exhaust pipe joints.
They are a pipe inserted into another pipe with lugs welded onto each piece and held together with springs.
I turned a former on the lathe and planned on using my 6 tonne bottle jack to force it into the end. Failed. 
So I borrowed a 10 tonne bottle jack. Wooo Hoo.  Piece of cake.
I'm sure Father Christmas reads Locostbuilders so I'd just like to point him in the direction of Screwfix who do a nice 12 tonne jobbie. 
(always pays to have a bit in hand)
I live in hope.
Cheers, and Happy Christmas to you all.
Paul G
 
Rescued attachment swaged-tube-s.jpg
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Mr Whippy
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| posted on 24/12/08 at 11:00 AM |
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I just weld on the end of a skip retrieved piece
Fame is when your old car is plastered all over the internet
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rotax78
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| posted on 24/12/08 at 12:24 PM |
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what did you use to jack against, obviously something that would take more than 10 tonne to move, but what?
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Volvorsport
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| posted on 24/12/08 at 12:45 PM |
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thats exactly how we do it .
just need to put some slots in it to make a perfect ID/OD joint
use some tallow aswell
www.dbsmotorsport.co.uk
getting dirty under a bus
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907
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| posted on 24/12/08 at 01:06 PM |
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quote:
Originally posted by rotax78
what did you use to jack against, obviously something that would take more than 10 tonne to move, but what?
Many many years ago I made a pipe bender to do w/bones.
Since then it's pressed bearings, in and out, bent brackets, (vee block) and pressed many a can end, and more.
A versatile tool. 
I used copperslip for a lubricant as I had some handy.
Cheers
Paul G
 
Rescued attachment pipe-bender.jpg
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Volvorsport
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| posted on 24/12/08 at 01:24 PM |
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the only problem is you get a lip on the end .
either cut and roll , or use a pipe expander . its great for swaging upto a size tho .
nice and simple tool i see - just need a foot operated pedal and about 50 more tons and youve cracked it !
www.dbsmotorsport.co.uk
getting dirty under a bus
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John Bonnett
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| posted on 24/12/08 at 02:28 PM |
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Paul, you are an artist in metal. How did you get the die out of the tube once it had been formed?
atb
John
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907
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| posted on 24/12/08 at 03:01 PM |
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quote:
Originally posted by Volvorsport
the only problem is you get a lip on the end .
either cut and roll , or use a pipe expander . its great for swaging upto a size tho .
nice and simple tool i see - just need a foot operated pedal and about 50 more tons and youve cracked it !
Hi VS
Your right about the lip. That was the last thing I was expecting.
Mk1 former was 51 o/d. A bit sloppy.
Mk2 is a wee bit smaller so the edge of the pipe is a dead 50.8mm (2"
I then case hardened it hence the former is blue.
Where these are going it doesn't have to be a perfect fit.
With a 300mph wind passing them you won't detect a bit of blow.
To answer your point John the former fell out of the pipe at about the same speed as my bottom jaw dropped.
As for the artist bit... I will be by about 10 o'clock tonight.
Cheers
Paul G
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thunderace
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| posted on 24/12/08 at 04:49 PM |
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quote:
Originally posted by 907
quote:
Originally posted by rotax78
what did you use to jack against, obviously something that would take more than 10 tonne to move, but what?
looks great
Many many years ago I made a pipe bender to do w/bones.
Since then it's pressed bearings, in and out, bent brackets, (vee block) and pressed many a can end, and more.
A versatile tool.
I used copperslip for a lubricant as I had some handy.
Cheers
Paul G
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