Compression spring machined from a solid piece of material.
In classical physics, a spring is seen as a device that stores potential energy, specifically elastic potential energy. Back in the 17th century the British physicist Robert Hooke developed what was to become known as Hooke’s law of elasticity. This states that the extension of an elastic rod (its distended length minus its relaxed length) is linearly proportional to its tension, the force used to stretch it. Similarly, the contraction (negative extension) is proportional to the compression (negative tension).
This accuracy of spring rate is more or less impossible to achieve with a wound spring but is readily available in the machined spring format.
All spring forms adhere to this law, however it is the linear accuracy of the relationship between the compression or extension to the force applied, that separates the traditional wire wound spring from the machined spring.
In fact spring rate tolerance can be as good as +/- 1% if required.
So why use machined springs?
Why are machined springs so unique?
Multi-start springs deliver outstanding performance advantages, since the independent
helixes are in the same cylindrical plane, which provides totally enhanced spring performance. In fact, the machined multiple start spring coil configurations takes the performance and reliability to levels simply not achievable by the traditional wound spring format.
So why use machined
The machined spring product has proven itself in medical, aerospace, semiconductor and motor-sport industries to name a few. Wherever a wound spring is not able to meet your performance criteria or a new spring design requires accuracy and repeatability, the machined spring is the ideal partner.
The next time you require a spring in a critical or high duty cycle environment, the machined spring from Abssac Limited may be the answer to your design problems.