helical spring

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helical spring

machine component

Learn about this topic in these articles:

design and use

In spring
The helical spring, in which wire is wrapped in a coil that resembles a screw thread, is probably the most commonly used mechanical spring. It can be designed to carry, pull, or push loads. Twisted helical (torsion) springs are used in engine starters and hinges. Helical…
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mandrel

In mandrel
In manufacturing coiled helical spring, the spring wire is wrapped around a mandrel that serves as a support; when seamless tubing is being extruded, a long mandrel forms the internal diameter.
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