Welding vs Bending

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Matt Cotton
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Welding vs Bending

#1 Post by Matt Cotton »

Hello all.
I am now working on the underside of my Sprint project and unfortunately the n/s chassis leg needs repair. I probably should replace it but the front end of the leg is very good... Tis quite a big job to replace too.
Looking at it tonight, I think I could fabricate a repair. My question though is would I be better off welding 3 plates together.. Ie two vertical and one horizontal or simply bending some steel into shape and welding on to what's left of the original vertical section? Strength is what concerns me.
Any thoughts folks?
Matt Cotton

TDC Oxfordshire Area Organiser.
TDC/TSSC group meeting - 3rd Tuesday of the month


1980 1500HL - OPD
1976 Sprint - SWU
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Tony Burd
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Re: Welding vs Bending

#2 Post by Tony Burd »

Hi Matt

If I was you I'd try to get hold of another chassis leg and cut a suitable piece to let in.

Cheers

Tony
Modified Dolomite Sprint MSO 662P VA485 1973 Mimosa Sprint
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Re: Welding vs Bending

#3 Post by new to this »

Matt

i would bend some 1.5mm steel to the shape of the chassis leg,to replace the whole leg is a lot of work

Dave
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Re: Welding vs Bending

#4 Post by cleverusername »

Matt Cotton wrote: Mon Nov 25, 2019 10:06 pm Hello all.
I am now working on the underside of my Sprint project and unfortunately the n/s chassis leg needs repair. I probably should replace it but the front end of the leg is very good... Tis quite a big job to replace too.
Looking at it tonight, I think I could fabricate a repair. My question though is would I be better off welding 3 plates together.. Ie two vertical and one horizontal or simply bending some steel into shape and welding on to what's left of the original vertical section? Strength is what concerns me.
Any thoughts folks?
A repair bent into the correct shape will be strong enough, as long as you use the correct gauge of steel. The strength of these structural sections is not just down to the material, it is also the shape. Just make sure you get all the rot out and weld it to good steel.

In some ways these repairs are easier than body work, you can put the welder on a nice high setting and get good penetration. You don't have to worry about how it looks.
Matt Cotton
TDC Oxfordshire Area Organiser
Posts: 494
Joined: Sun Oct 08, 2006 4:32 pm

Re: Welding vs Bending

#5 Post by Matt Cotton »

Thanks for the info gents. Having cleaned it up further I've decided to purchase a leg from Alun and will graft that in. It looks to have had multiple repairs in the past so time to start afresh.
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Matt Cotton

TDC Oxfordshire Area Organiser.
TDC/TSSC group meeting - 3rd Tuesday of the month


1980 1500HL - OPD
1976 Sprint - SWU
new to this
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Joined: Mon Dec 12, 2016 9:53 pm
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Re: Welding vs Bending

#6 Post by new to this »

Matt Cotton wrote: Wed Nov 27, 2019 11:18 am Thanks for the info gents. Having cleaned it up further I've decided to purchase a leg from Alun and will graft that in. It looks to have had multiple repairs in the past so time to start afresh.
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Matt

that chassis leg does look a bit ruff,be nice to see how you fit the new one

Dave
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Re: Welding vs Bending

#7 Post by cleverusername »

Matt Cotton wrote: Wed Nov 27, 2019 11:18 am Thanks for the info gents. Having cleaned it up further I've decided to purchase a leg from Alun and will graft that in. It looks to have had multiple repairs in the past so time to start afresh.
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What is the footwell above it like? With all that rot in the rail, I would give it a prod just to be safe.
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