Stainless steel small double torsion springs
These are 2 small double torsion springs made of stainless steel 304. The first spring (the one on the right) is easier, while the second spring (the one on the left) is a lot harder to be made because there are a lot of right angle bendings, and these bendings are made in a small space. We spent almost 2 days to program the machine.
|Wire diameter||1 mm|
|Dimension (relaxed)||18*20 mm|
|heat treatment||230℃, 30 minutes|
Here is a video showing how they are done: