Residual stresses associated with the production of coiled automotive springs

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dc.contributor.authorVenter, AMen_AU
dc.contributor.authorLuzin, Ven_AU
dc.contributor.authorHattinghen_AU
dc.date.accessioned2016-12-06T00:57:07Zen_AU
dc.date.available2016-12-06T00:57:07Zen_AU
dc.date.issued2014-07-02en_AU
dc.date.statistics2016-12-06en_AU
dc.description.abstractCold coiling of high tensile steel rod into helical coil springs for the automotive industry is a new technique being implemented amongst spring manufacturers worldwide. To characterise this coil production process, the neutron strain scanning technique has been employed to non-destructively elucidate the influence production stages have on the tri-axial residual stress state. Samples investigated represented key production steps in the cold-coil forming process: Cold coiling; Tempering; Hot setting; Hot peening; Shot peening. Investigations revealed that the stress field was axi-symmetrical, that the dominant variation in all samples occurred along the hoop direction (helical circumference), whilst the radial and axial stresses are substantially lower. Accurate two-dimensional stress maps of the rod cross section have been compiled revealing key features associated with the cold coiling step. Comparison of the stress fields after each production step revealed altered stress values. The final shot peening process stage not only reduced stress concentrations at the internal bore, but contributed to the establishment of favourable surface residual stress conditions that enhance the fatigue life of the final product. © 2014, Trans Tech Publications.en_AU
dc.identifier.citationVenter, A. M., Luzin, V., & Hattingh, D.G. (2014). Residual stresses associated with the production of coiled automotive springs. Paper presented at the 7th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (MECA SENS VII 2013), 10-12 September 2013, Sydney, Australia. In T. Holden, O. Muránsky & C. J. Hamelin (Eds.) Materials Science Forum, 777, 78-83. doi:10.4028/www.scientific.net/MSF.777.78en_AU
dc.identifier.conferenceenddate12 September 2013en_AU
dc.identifier.conferencename7th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (MECA SENS VII 2013)en_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate10 September 2013en_AU
dc.identifier.govdoc7668en_AU
dc.identifier.issn1662-9752en_AU
dc.identifier.journaltitleMaterials Science Forumen_AU
dc.identifier.pagination78-83en_AU
dc.identifier.urihttp://dx.doi.org/10.4028/www.scientific.net/MSF.777.78en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/8123en_AU
dc.identifier.volume777en_AU
dc.language.isoenen_AU
dc.publisherTrans Tech Publicationsen_AU
dc.subjectElectric coilsen_AU
dc.subjectSteelsen_AU
dc.subjectAutomotive industryen_AU
dc.subjectResidual stressesen_AU
dc.subjectProductionen_AU
dc.subjectNeutronsen_AU
dc.titleResidual stresses associated with the production of coiled automotive springsen_AU
dc.typeConference paperen_AU
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