Shown are the winding and operation of the spring from non-spring wire, from a simple unstable non-wire wire.
Of course, the springs must be wound from a special spring wire.
And if it is not there, then you can take a steel caked wire for example, from cables, as I said in my video:
• Как СДЕЛАТЬ ПРУЖИНУ. Т... . Three ways of winding springs are also shown here.
But sometimes it is urgent to make a simple non-responsible spring.
What is a non-responsive spring? I think this: if a device with such a spring stops working and this does not lead to serious consequences, then this is an irresponsible spring.
As examples of non-responsive springs, one can cite the following: springs in interior door latches, in electrical switches, in furniture latches. In disposable dispensers of detergents and cleaners, in a ballpoint pen, springs are generally thrown away with them. In the lighting cartridge, the spring only works when replacing the lamp, in the neon probe screwdriver, the spring is compressed only once - during assembly.
This video shows, by way of example, the manufacture and operation of a non-responsible spring in an interior door latch.
The source spring is made of spring wire with a diameter of 0.55 mm.
I had a simple, soft, non-pre-wired wire with a diameter of 0.7 mm.
I decided to try whether a spring from such a wire will work in the door latch.
I wound a spring of the same diameter as the original, and as many turns.
The spring elongated slightly after removal from the mandrel. This suggests that the spring wire is not sourced. The spring is stretched to the length of the original spring.
Assembled the latch. Works. He made 100 clicks and disassembled the latch. I measured the length of the spring. It was 36 mm, and became 31 mm, that is, it became shorter by 5 mm. The spring has sat down. This once again suggests that the spring is not made of spring steel.
He finally assembled the latch and put it in place. The latch works well. I decided to watch how it will work for a long time.
Two months have passed, the latch works without comment. With someone else's bad spring. With a spring not of a spring wire.
Thus, in some irresponsible cases, it is possible to produce fully functional springs from non-spring wires.
For example, when the spring has a small stroke, that is, small deformations of each individual coil. Because an inelastic wire has a very small stretch of elastic deformation, on which Hooke's law holds. With small deformations when removing the load, such a spring restores its size.
Of course, I do not urge you to repair an electric cartridge or soap dispenser. But for skilled craftsmen, situations may arise when you need to do something quickly, but there is no ready-made spring or suitable spring wire at hand.
It happens that you urgently need to find a simple way out of the situation. For example, when disassembling a device, a spring is lost and you need to urgently wind a spring.
It happens that you can make a temporary spring, and then replace it with a good one.
In conclusion, I want to say: do not be afraid of horror stories where they say that all springs should be made only of real spring wire and must undergo heat treatment.
Using the example of a door latch, I showed that a spring, even from a simple non-spring wire, can work for a long time.
Do not be afraid, try, experiment.
I invite you to watch the Springs playlist:
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Address of this video:
• МОЖНО сделать ПРУЖИНУ ...
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