Zbytková pnutí v za studena vinutých automobilových pružinách měřená pomocí neutronové difrakce

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/61389021:_____/04:00022130

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Residual stresses in cold-coiled helical compression springs for automotive suspensions measured by neutron diffraction

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Residual stresses in cold-coiled helical compression springs for automotive suspensions measured by neutron diffraction

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JB - Senzory, čidla, měření a regulace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Material Science and Engineering A: Structural materials

ISSN

0921-5093

e-ISSN

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Svazek periodika

367

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

306-311

Kód UT WoS článku

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EID výsledku v databázi Scopus

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