Residual stresses in cold-coiled helical compression springs for automotive suspensions measured by neutron diffraction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F04%3A00103253" target="_blank" >RIV/61389021:_____/04:00103253 - isvavai.cz</a>
Alternative codes found
RIV/61389021:_____/04:00022130
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Residual stresses in cold-coiled helical compression springs for automotive suspensions measured by neutron diffraction
Original language description
Residual stresses in cold-coiled helical compression springs for automotive suspensions were determined at several manufacturing stages using neutron diffraction. These results indicate that the residual stresses in the as-coiled springs are nearly uniaxial with peak values of +/-900MPa and independent of coil position. A factory stress-relieved spring showed the same pattern of stresses, but with the peak values reduced to ~+/-200 MPa. Residual stresses in a spring annealed in a laboratory furnace at 56 K over the normal factory annealing temperature were ~35% lower. The effect of cutting the springs either by electric discharge machining (EDM) or by abusive grinding was also examined. From these data, the smallest spring segment that can yield reliable stress data was determined.
Czech name
Zbytková pnutí v za studena vinutých automobilových pružinách měřená pomocí neutronové difrakce
Czech description
Zbytková pnutí v za studena vinutých automobilových pružinách byla měřena pomocí neutronové difrakce po různých fázích zpracování. Byl určen průběh a maxima pnutí po vinutí, žíhání na různých teplotách. Sledováním pnutí v postupně zmenšovaném segmentu byla určena nejmenší část, která ještě obsahuje spolehlivé informace o pnutí, využitelná např. pro měření rtg. difrakcí.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JB - Sensors, detecting elements, measurement and regulation
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Material Science and Engineering A: Structural materials
ISSN
0921-5093
e-ISSN
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Volume of the periodical
367
Issue of the periodical within the volume
1-2
Country of publishing house
CH - SWITZERLAND
Number of pages
6
Pages from-to
306-311
UT code for WoS article
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EID of the result in the Scopus database
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