Research Reports

An investigation into the formation of coiling cracks

Evaluation of paint and plastic coatings for springs

Fatigue of strip in bending

On the development of failure during the fatigue testing of torsion bars

The long term relaxation behaviour of spring materials. Third progress report

The fatigue properties of medium sized helical compression springs

A survey of motorised and self-braking swifts

The production of spring fatigue data with statistical levels of confidence. Part 3 of 7 parts. The fatigue properties of springs manufactured from oil hardened and tempered steel wire to BS 2803 Grades I and II.

The production, properties and potential of fibre reinforced plastics for use in the spring industry

Co-operative research work of the German Spring Association covering the test series in progress on cold formed springs

Non-ferrous media

Spring comparator, a simple but accurate device for load testing springs

The effect of non-metallic surface coatings on the corrosion-fatigue strength of a spring steel.

An investigation into the effect of bend radii, bend allowance and springback in strip forming. Progress Report No. 1

An evaluation of the Lion spring gauge when used in conjunction with a Bennett S C O autocoiling machine

Spring design

A study of the effect of fluid lubricants on the free length variability of springs made from stainless steel wire to BS 2056 En58A

The effect of coiling speed, swift type and bundle weight on free length variation of springs

The effect of shot-peening on the fatigue properties of helical compression springs made from continental oil-tempered and patented hard drawn spring steel wires

An investigation of the consistency of ultimate tensile strength in cold drawn carbon and stainless steel spring wires