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dc.contributor.authorMangas, Ángela
dc.contributor.authorSantos, Maite
dc.contributor.authorZarazua, Jose Ignacio
dc.contributor.authorPérez, Iñaki
dc.date.accessioned2017-05-04T14:41:13Z
dc.date.available2017-05-04T14:41:13Z
dc.date.issued2015
dc.identifier.citation1. Mangas Á, Santos M, Zarazua JI, Pérez I. Design of Rotary Extrusion Process Using Simulation Techniques to Save Raw Material in Hollow Components. Key Engineering Materials [Internet]. Trans Tech Publications; 2015 Jul;651-653:254–9. Available from: http://dx.doi.org/10.4028/www.scientific.net/kem.651-653.254en
dc.identifier.issn1013-9826en
dc.identifier.urihttp://hdl.handle.net/11556/391
dc.description.abstractThe forging process plays an important role in the automotive industry thanks to the good mechanical properties of the forged parts. Nowadays, due to the European policy of increasing efficiency in raw material and energy usage, the metal forming sector is demanding new innovative technologies. In this context, rotary extrusion technology is a very promising metal forming alternative to the drilling techniques after forging processes. The presented work is focused on hollow shafts that are usually manufactured using a combination of forming and metal cutting techniques. Deep drilling is the most common technique to obtain internal holes in the automotive hollow parts, but it is an expensive process in terms of material usage. In this framework, rotary extrusion appears as an alternative technology that leads to the reduction of material usage and process time. The tubular shape is formed with the combination of two forming processes: flow forming and backward extrusion. This paper presents the development of a simulation methodology, the process design for a hollow part, the specifications of the experimental unit, and the manufactured prototypes in order to validate the simulation model. Also the incremental process is improved thanks to a sensitivity study of the rollers geometry. Rotary extrusion experiments are done using a modified flow forming machine and 20% material saving is achieved when obtaining the deep hole in comparison to the current deep drilling technology. The process design and numerical model tasks carried out try to provide the industry manufacturers an alternative technology to drilled parts considering the advantages of rotary extrusion parts.en
dc.language.isoengen
dc.publisherTrans Tech Publications, Switzerlanden
dc.titleDesign of Rotary Extrusion Process Using Simulation Techniques to Save Raw Material in Hollow Componentsen
dc.typeconferenceObjecten
dc.identifier.doi10.4028/www.scientific.net/KEM.651-653.254en
dc.isiNoen
dc.rights.accessRightsembargoedAccessen
dc.subject.keywordsRotary extrusionen
dc.subject.keywordsFEMen
dc.subject.keywordsDeep drillingen
dc.subject.keywordsHollow shaftsen
dc.subject.keywordsForgingen
dc.identifier.essn1662-9795en
dc.journal.titleKey Engineering Materialsen
dc.page.final259en
dc.page.initial254en
dc.volume.number651-653en


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