Making a flat spring

Making a flat spring

This topic has 2 replies, 3 voices, and was last updated 12 January 2025 at 00:05 by Gaz.

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11 January 2025 at 19:10 #776602
David K
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@davidk77137
I have some 0.3mm spring steel strip , i wish to cut a length approx 100mm long, then bend

it in the middle around a m3 drill to create a flat spring.

My question is , do i bend the steel cold to shape then heat treat it or heat it first and bend it hot.

Thanks
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11 January 2025 at 20:10 #776608
Bazyle
Participant
@bazyle
If it is currently springy – like a bit of clock spring – you may have difficulty in getting it tempered to anything like the original springiness. Best not to heat at all if it can be avoided.
12 January 2025 at 00:05 #776637
Gaz
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@gaz13336
This video may help you, it is thicker stuff than you’re using but could be worth a watch.
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