Compression springs

Springs are objects that store mechanical energy. They are most often made of steel and they are flexible. When their shape is changed, springs exert a resisting force – they push when compressed and pull when stretched. When using a spring you are witnessing a process know as elastic deformation. This term is used for metal that temporarily bends and then reverts to its original shape. Springs may be small and inexpensive parts of a greater whole, but they are often crucial components in reliable performance.

Compression springs are what most people picture when they think of a spring. Compression Springs Grouping This type is an open coiled, helical spring that offers resisitence to a compressive force. In other words it stores and exerts energy in a “push” mode.

A spring that works in a twisting motion is formally called a torsion spring Torsion Springs Take a look at your ordinary spring hinge to see an example of this type of spring. Sometimes a torsion spring is used to rotate parts, or to cushion the shock of opening a part such as an oven door. Brush holder springs on motors and generators, springs in door locks, etc. are more examples.

FUNCTIONS OF SPRINGS

Springs are used for many purposes, and one spring may serve more than one purpose. Listed below are some of the more common of these functional purposes. As you read them, try to think of at least one familiar application of each. 1. 2. 3. 4. To store energy for part of a functioning cycle. To force a component to bear against, to maintain contact with, to engage, to disengage, or to remain clear of some other component. TO counterbalance a weight or thrust (gravita- tional, hydraulic, etc.). Such springs are usually called equilibrator springs. To maintain electrical continuity.

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