Compression springs are designed to resist compaction in the direction of their axis. These are the most familiar springs and they are made bigger at rest. When a load is applied, they will be condensed and stored with energy. These springs are considered one of the most efficient available devices to store energy.
When it comes to the design features of compression springs, they are wound and consistent in diameter and pitch traditionally. However, nowadays, they are being designed with a bounty of features according to the specifications of the user. While considering the operation of these springs, their deflection mainly counts on their materials, sizes, and the load they handle.
In a driving force, a compression spring will convey stored torsional energy. The shape-returning force of the spring is relative to its deflected distance. Springs that are designed with a thick coil and thinner-diameter will usually need heavier loads to start compression. The linear flexibility of these springs will be determined by their materials, as well. Springs that are made from stiffer materials will offer a higher restoring force and stiffer resistance.
Compression springs are available in both helical and non-helical forms. Springs that attain the helical form include:
- Straight springs
- Mini springs
- Conical springs
- Hourglass springs
- Barrel springs
- Reduced-end springs
- Die springs
The non-helical version of these springs is also referred to as wave springs. The modern version of these springs usually employs compressed, kinked coils to offer an extra spring effect.
Compressions springs are usually metallic springs because of the firmness of their material. They are being made from different types of materials, including alloys, steel, and brass, but they are also made from other materials according to the custom applications of users. These springs will vary significantly in their design, with different pitch styles, coil design, end configurations, and diameters.