A Spring is an engineering component which when deflected by a force
tends to return to its unloaded shape. Ideally the energy input to cause the deflection
is usefully recovered.
Springs are mechanical components designed to store mechanical energy, working on
the principle of flexible deformation of material. Springs constitute one of
the most widely used group of components in mechanical engineering. When designing and/or selecting
metal springs consideration should be given to material, manufacturing process, heat treatment,
dynamic properties, elastic properties, strength, fatigue, shock, stability, surging etc etc.
Spring types include