Broken springs: causes, symptoms and consequences

Last time you can see many different broken springs on the side of the road. Spring broken is a problem not only with old cars. There are many cases of springs brokes with new cars last time.

So what happens to one of the main suspension elements? Before answering this question, first, let’s know what a car spring is and why it is needed.

A spring on a suspension is an energy storage and transfer device. As the wheel and tire follow the road, the spring suppresses shocks and overloads reacting to undulations in the road and movements of the body and chassis. The spring excludes the “copying” of the profile of road irregularities and improves the smoothness of the car. A good ride is considered to be one in which the car body oscillates with a frequency of 1 – 1.3 Hz.

Spring Steel

Spiral (twisted) springs are made from a round bar of spring steel and can be cylindrical, conical or barrel-shaped. Steel for springs is low- or medium-carbon steel. The high-yield point allows return to its original shape quickly.

The geometry of the spring affects how side loads are absorbed. Treating the spring can also influence the spring rate. Modern spring designs have one disadvantage – they can fatigue in specific areas.

Weakening of the spring can be a result from the movement grain and microstructures developing cracks, which can lead to structural failure of the spring.

Symptoms When a Spring Breaks

If a spring breaks, it can cause poor handling. You can hear any noises that accompanied the suspension bottoming out. So it is important to check the spring by the wear from time to time.

Author: delfi

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