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Default How to rebnd a spring?

Hi;

Any know how to make a bend in a small spring from my door lock?

I have a lock with a broken bend at one end. The steel is quiet thick
like the lead from a propelling pencil and has about 1/2 dozen turns.
If I can soften this spring and remake the bent by undoing one turn I
think I could remake the spring. Given I can remake it springy!

I have never known if this is possible as usually my attempts at
rebending springs usually ends with it breaking off again.

Any ideas?

Regards
Ian

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Fred
 
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Default How to rebnd a spring?


wrote in message
oups.com...
Hi;

Any know how to make a bend in a small spring from my door lock?

I have a lock with a broken bend at one end. The steel is quiet thick
like the lead from a propelling pencil and has about 1/2 dozen turns.
If I can soften this spring and remake the bent by undoing one turn I
think I could remake the spring. Given I can remake it springy!

I have never known if this is possible as usually my attempts at
rebending springs usually ends with it breaking off again.

Any ideas?

Regards
Ian


Heat just the bit of spring you want to bend in a flame to blue and gently
remove it from the flame to cool slowly. It should lose it's temper and
bend without breaking.



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Dave Fawthrop
 
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Default How to rebnd a spring?

On Mon, 6 Feb 2006 00:28:18 -0000, "Fred" wrote:

|
wrote in message
roups.com...
| Hi;
|
| Any know how to make a bend in a small spring from my door lock?
|
| I have a lock with a broken bend at one end. The steel is quiet thick
| like the lead from a propelling pencil and has about 1/2 dozen turns.
| If I can soften this spring and remake the bent by undoing one turn I
| think I could remake the spring. Given I can remake it springy!
|
| I have never known if this is possible as usually my attempts at
| rebending springs usually ends with it breaking off again.
|
| Any ideas?
|
| Regards
| Ian
|
|
|Heat just the bit of spring you want to bend in a flame to blue and gently
|remove it from the flame to cool slowly. It should lose it's temper and
|bend without breaking.

Then how do you temper it again without the facilities of an engineering
factory?
--
Dave Fawthrop dave hyphenologist co uk Please quote, with quote
character, previous post sniped to only the bit you are replying to.
Threads often contain 100s of posts dozens layers deep. Other people
use different newsreaders, they do not see or do what you see and do.
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Chris Bacon
 
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Default How to rebnd a spring?

Dave Fawthrop wrote:
"Fred" wrote:
|ipellew wrote
| Any know how to make a bend in a small spring from my door lock?
|Heat just the bit of spring you want to bend in a flame to blue and gently
|remove it from the flame to cool slowly. It should lose it's temper and
|bend without breaking.

Then how do you temper it again without the facilities of an engineering
factory?


Harden it first!
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Fred
 
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Default How to rebnd a spring?


"Dave Fawthrop" wrote in message
...
On Mon, 6 Feb 2006 00:28:18 -0000, "Fred" wrote:

|
wrote in message
roups.com...
| Hi;
|
| Any know how to make a bend in a small spring from my door lock?
|
| I have a lock with a broken bend at one end. The steel is quiet thick
| like the lead from a propelling pencil and has about 1/2 dozen turns.
| If I can soften this spring and remake the bent by undoing one turn I
| think I could remake the spring. Given I can remake it springy!
|
| I have never known if this is possible as usually my attempts at
| rebending springs usually ends with it breaking off again.
|
| Any ideas?
|
| Regards
| Ian
|
|
|Heat just the bit of spring you want to bend in a flame to blue and
gently
|remove it from the flame to cool slowly. It should lose it's temper and
|bend without breaking.

Then how do you temper it again without the facilities of an engineering
factory?
--
Dave Fawthrop dave hyphenologist co uk Please quote, with quote
character, previous post sniped to only the bit you are replying to.
Threads often contain 100s of posts dozens layers deep. Other people
use different newsreaders, they do not see or do what you see and do.


On the occasions I have had a broken spring I've softened the end to be
wrapped around the appropriate post, I've never felt the need to re-temper
that part of the spring. The rest of the spring has had sufficient "spring"
in it to do the business. I'm not sure how an 1/2 inch of spring is going
to effect the rest of it. It all depends on how the end of the spring is
held captive in the OP's case.




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nightjar
 
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Default How to rebnd a spring?


wrote in message
oups.com...
Hi;

Any know how to make a bend in a small spring from my door lock?

I have a lock with a broken bend at one end. The steel is quiet thick
like the lead from a propelling pencil and has about 1/2 dozen turns.
If I can soften this spring and remake the bent by undoing one turn I
think I could remake the spring. Given I can remake it springy!

I have never known if this is possible as usually my attempts at
rebending springs usually ends with it breaking off again.

Any ideas?


You need to anneal the spring before bending it. After that, you need to
bring it back to the right temper and, if you want it to last, you also need
to stress relieve it. However, if you unwind a turn, the spring will be less
powerful and may not do its job properly after you have gone to all that
trouble. I would take the spring down to a lockmaker and ask for a
replacement.

Colin Bignell


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