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.
Part specification
| Material | SS304 |
| Wire diameter | 1 mm |
| Dimension (relaxed) | 18*20 mm |
| Surface coating | electropolishing |
| heat treatment | 230℃, 30 minutes |
Here is a video showing how they are done:
