Coil springs are used in a very broad
range of products, from pens, to prams, to playground equipment,
to motor cars and in many industries using mechanical components,
such as the electronics industry. One problem faced by every spring
manufacturer is the lack of consistency in the physical properties
of steel spring wire. Some wire simply does not behave in a regular
and predictable way.
This project developed a new test for
identifying steel wire quality parameters which have the greatest
influence on the achievable dimensional tolerances in the fabrication
of coil compression springs. Application of the test led to the
elimination of 40 percent of bad wires prior to utilisation. The
research involved considerable participation of SMEs Europe-wide.
Exploitation of the results and further
research and development work have continued since the project ended
and partners say they have considerably helped European spring coil
and wire manufacturers to cut material waste, leading to lower energy
requirements, the introduction of new standards observance and thus
better quality products.