Bending brass wire

KeithT

Hillwalking, chickens and - err - garden railways.
24 Oct 2009
13,068
180
Nr Manchester
I am attempting to bend some 1.2mm o/d brass wire to a very precise profile but the wire is very springy and defies my attempts to keep it as I want it.
The intention is to glue it as the “roll” to the edge of a cab so there must not be any flex in it.
Should I anneal it?
Any ideas welcomed, as ever.
 
Last edited:

phils2um

Phil S
11 Sep 2015
776
349
Ann Arbor, Michigan
Perhaps a silly question. Are you sure it's brass and not phosphor bronze which is by nature very "springy"?
 

KeithT

Hillwalking, chickens and - err - garden railways.
24 Oct 2009
13,068
180
Nr Manchester
It is K&S Brass Rod according to the label.
Perhaps a silly question. Are you sure it's brass and not phosphor bronze which is by nature very "springy"od
 

KeithT

Hillwalking, chickens and - err - garden railways.
24 Oct 2009
13,068
180
Nr Manchester
It is K&S Brass Rod according to the label.
This was bent precisely to shape but the moment I release pressure it springs apart.
I slightly over bent the right side purposely but want to avoid that if possible because I find it near impossible to get it accurate.
Maybe I will have better results with copper wire?
 

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phils2um

Phil S
11 Sep 2015
776
349
Ann Arbor, Michigan
Sounds like you need a wire that will yield under a much lower stress than brass will for your application. Since you are trying to follow a fairly gentle bend there is not enough stress to cause permanent deformation in the wire. I suggest that you try some solid copper mains wire of the appropriate size. It should follow your curve much better.
 

dunnyrail

DOGS, Garden Railways, Steam Trains, Jive Dancing,
25 Oct 2009
18,636
3,804
72
St.Neots Cambridgeshire UK
Definitely use some heat but not quite sure how, probably heat then quench it should soften it but google it.
 
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PhilP

G Scale, 7/8th's, Electronics
5 Jun 2013
27,355
2,821
Tamworth, Staffs.
Yes, do Google to check..

Some metals, you heat and quench. Some you heat and let cool slowly..

Some are softened, and some hardened, by these processes.

I can never remember which. :(

PhilP.
 
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Rhinochugger

Retired Oik
27 Oct 2009
29,191
3,505
North West Norfolk
OK, silly question - why glue brass? If it's brass rod on a brass roof, then solder it.

If it's a plastic roof, why not use Evergreen plastic round strut it's less springy and can be gently warmed for the tighter corners.

(Can't show a piccy of mine, 'cos the piccies are on the PC and I'm playing on the lappy.)
 
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KeithT

Hillwalking, chickens and - err - garden railways.
24 Oct 2009
13,068
180
Nr Manchester
OK, silly question - why glue brass? If it's brass rod on a brass roof, then solder it.

If it's a plastic roof, why not use Evergreen plastic round strut it's less springy and can be gently warmed for the tighter corners.

(Can't show a piccy of mine, 'cos the piccies are on the PC
Not a silly question at all, I had thought about plastic but not seen any and Covid has made it difficult or impossible to visit the appropriate shops.
I will have a ferret online. Thanks.
 

KeithT

Hillwalking, chickens and - err - garden railways.
24 Oct 2009
13,068
180
Nr Manchester

KeithT

Hillwalking, chickens and - err - garden railways.
24 Oct 2009
13,068
180
Nr Manchester
Not a silly question at all, I had thought about plastic but not seen any and Covid has made it difficult or impossible to visit the appropriate shops.
I will have a ferret online. ThanksGood idea.
OK, silly question - why glue brass? If it's brass rod on a brass roof, then solder it.

If it's a plastic roof, why not use Evergreen plastic round strut it's less springy and can be gently warmed for the tighter corners.

(Can't show a piccy of mine, 'cos the piccies are on the PC and I'm playing on the lappy.)
I have ordered someas a trial.
Thanks.
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