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Residual stresses in cold-coiled helical compression springs for automotive suspensions measured by neutron diffraction
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SYSNO ASEP 0103253 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Residual stresses in cold-coiled helical compression springs for automotive suspensions measured by neutron diffraction Překlad názvu Zbytková pnutí v za studena vinutých automobilových pružinách měřená pomocí neutronové difrakce Tvůrce(i) Matějíček, Jiří (UFP-V) RID, ORCID
Brand, P. C. (US)
Drews, A. R. (US)
Krause, A. (US)
Lowe-Ma, C. (US)Zdroj.dok. Materials Science and Engineering A Structural Materials Properties Microstructure and Processing. - : Elsevier - ISSN 0921-5093
Roč. 367, 1-2 (2004), s. 306-311Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova residual stress, automotive springs, neutron diffraction Vědní obor RIV JB - Senzory, čidla, měření a regulace CEZ AV0Z2043910 - UFP-V Anotace 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. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2005
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