Leaf Springs/Coil Springs

Leaf springs consist of multiple layers of curved metal strips (leaves) stacked and clamped together, providing progressive stiffness through friction between leaves. Coil springs are helical wound metal wires that compress or extend linearly along their axis, offering consistent spring rates. Both types serve as energy storage devices that deform under load and return to original shape when unloaded, critical for vibration damping, load distribution, and motion control in machinery.

Leaf springs work on the principle of beam bending - each leaf acts as a cantilever beam that deflects under load, with friction between leaves providing damping. Coil springs operate on torsional stress principle - when compressed or extended, the wire twists along its helical path, storing potential energy proportional to displacement according to Hooke's Law (F = kx). Both convert kinetic energy from impacts or vibrations into potential energy, then release it gradually to smooth motion.