Introduction: Springs are elastic bodies (generally metal) that can be twisted pulled or stretched by some force. They can be return to their original shape when the force is released.In other words it is termed as resilent member.

Concept: There is not much physics behind it when the spring is stretched or squashed it creates a force in the opposite direction because the spring tries to get back to its original position.

Manufacturing : Preperation: Start preparing

Winding : Having curve and twisting shape.

Grinding : To perform operations of reducing to fine particles.

Calibration : To determine check or to divide

Coating : a layer or a thin film spread

Testing : A means of trial

Materials req :High carbon steel

Chrome vanadium

Titanium

Chrome silicon

Stainless steel

Copper

Monel

Oil tempered

Helical tension spring :It has some means

of transferring the load from the support to the body by means of some arrangement.

The spring is loaded along the axis

Compression spring : Is designed to operate with a compression load, so the spring gets shorter as the load is applied to it

Torsion spring : The ends of the spring are attached to other application objects, so that if the object rotates around the center of the spring, it tends to push the spring to retrieve its normal position.

It releases the load in an arc around the axis.

Leaf spring : a flat spring used in vehicle suspensions, electrical switches, and bows.

These spring is usually use to vehicles with heavy load.

Cantiliver spring : The spring which is fixed at one end.

It is used for orthodantics treatement in dental surgeries.

Gas spring : It help to compress gas

Volute spring : A volute spring is a compression spring in the form of a cone .

Under compression, the coils slide past each other, thus enabling the spring to be compressed to a very short length in comparison

Mostly we use spring to avoid vibration because the sudden vibrations in a car may effect the human and it cause vomiting .

To avoid vibrations in machines.

To apply forces and controlling motion in clutches and brakes

It helps in storing energy as in case of watches and toys.

If the deflection of the spring exceeds some critical value than the spring will buckle .

It is difficult to replace the spring

Ones the spring is damaged it is difficult to repare.