How to "respring" metal?

[Lynx_Arc]

put it in a vice and squeeze it till it bends shut then take it out and keep tightening it more till it is squeezed all the way shut.

 

[Illum]

This will ruin the temper.

not to mention fissures if its heated/cooled unevenly...
if its too hot the spring might stick to the body...
Personally I do not recommend heating at all:ohgeez:

 

[KowShak]

This will ruin the temper.

That is the idea, some post bending heat treatment will be needed to restore a suitable temper to the metal if the original temper is lost.

not to mention fissures if its heated/cooled unevenly...
if its too hot the spring might stick to the body...
Personally I do not recommend heating at all:ohgeez:

Metals are fairly good heat conductors and fairly ductile so I would not expect to see fissures forming from heating, nor would I expect to see pressure welding happening unless you actually melt the metal.

How do you think the metal clip was given the temper it currently has?

 

[LukeA]

That is the idea, some post bending heat treatment will be needed to restore a suitable temper to the metal if the original temper is lost.

That would be quite an ordeal if the clip can't be removed.

 

[KowShak]

That would be quite an ordeal if the clip can't be removed.

If we were not talking about the money clip mentioned given as an example above, e.g. if we were talking about a non-removable clip on a torch, you couldn't get it glowing red without getting the torch body pretty hot, perhaps hot enough to melt the aluminium or in the very least the plastic bits inside.

I think if the clip on a torch is removable, you probably don't need to use the heat on it, because you'll have room to bend it. On the other hand if it isn't removable, you may need the heat but can't use it. I think thats a lose lose situation.