Research Reports

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

Coilability of spring wire

The effects of hot and cold prestressing on the fatigue and relaxation properties of compression springs made from Cr-V steel wire

Typical goodman diagrams for steel springs

A comparison of the static mechanical fatigue properties of three spring steel wires

A comparison of silico-manganese, chrome-vanadium and carbon alloy steels as materials for springs.

The effect of decarburization on the fatigue properties of hardened and tempered carbon steel springs