Worst case you find a scrap automotive spring. It is probably something
like 5160. Torch cut a piece. Anneal, forge, mill, grind, etc to desired
shape. Heat until it is not magnetic, quench in oil. Temper back to
about Rc 50. Test. The first try may not be good. Adjust as necessary in
thickness and temper. That is the long route. Of course you need a
friend with a way to grind, shape and harden it.
Machinery's Handbook has a pretty good section on springs.
Your ruined saw may be your best bet; thin enough to cut with an
abrasive disc.
Short route: buy spring steel off web or preformed springs that look
about right in dimension.
Brownell's lists an assortment of 1075 but also says it out of stock.
Steel outlet want to sell you a 100 lbs... :-(
Good liuck.
Dave
ps. There must be better options.
On 1/24/21 2:11 PM, Nicklas SB Karlsson wrote:
Need a small springs, not very many, very simple flat metal. Force in
middle should be around 150N and guess 45mm long, 10mm wide , 0.6mm
thick will do the trick. Anybody have any idea where it is possible to
buy suitable material?
Have been looking on a used handsaw, probably rather good steel, it
hit a nail anyway and would make many enough to try out it work well
but do not have anything hand to heat it, to hard now and it to be
hardened then cut.
Nicklas Karlsson
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