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iVf ICROFiCHE REFERENCE LJBRAWY
A project of Volunteers S&xba in Asia

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by : R.H. Warring Published by: Model and Allied Publications Argus Books Limited P.O. Box 35, WolseyHouse Wolsey Rd.,. Hemel Hempstead Hertfordshire HP2 4SS England Paper copies are $ 2.25. Available from: META Publications P.O. Box 128 Warblemount, WA 98267 Reproduced by permission Publications.USA of Model and Allied

Reproduction of this microfiche document in any form is subject to the same restrictions as those of the original document.

ring Design d Calculation
R. H. WARRINGModel

& Allied
Bridge Street,

Publications
Hemel, Hempstead,

Limited
Herts., England

‘::;’ ,:

CONTENTS 1 Spring 2 Simple Materials Fiat Springs 3 7 11 ?9 21 24 27 31 33 36

3Heiica! Springs 4 Tapered 5 Torsion Helical Springs Springs

6 Ciock Springs 7 Constant 8 Multiple Force Springs Leaf Springs

Appendix .A Spring Terminology Appendix B Wire Sizes and Values of d3and 6“ Table I Spring Materials and their Mechanical Properties Table II Wahi’s Correction Factor K for Round Wire Helical Coii Springs Table II1 Correction Factors for Rectangular Wire Helical CoilSprings
Model & Allied Publications Ltd Book Division Station Road, Kings Langley Hertfordshire, England First Published 1973 @ R. H. Warring 1973 ISBN 0 85242 327 6 Printed and made in England byPage Bros (Norwich) Ltd., Norwich

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Table IV Stress Correction Factors for Torsion Springs Table V Design Values for ‘Tensator’ Springs

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1The sponginess of me& is rerated in a general way to their hardness. Lead, for example, is a sof? meta!, with vi;t*uaiiy no ‘spring’ properties. The same with al~minium. Cxtrerns hardness, on theother hand, again results in Lack of ‘spring’ properties hecause the material is brittle rather than ‘eiastic’. The range of suitabfe spring materials are thus those which combine sruitable nardness...
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