6533b852fe1ef96bd12ab779
RESEARCH PRODUCT
Friction Stir Welding of steels process design through a continuum based fem model
Gianluca BuffaLivan Fratinisubject
Materials scienceViscoplasticityMechanical engineeringchemistry.chemical_elementProcess designWeldingStrain rateCondensed Matter PhysicsFinite element methodlaw.inventionchemistrylawAluminiumFSW steel FEMFriction stir weldingGeneral Materials ScienceFriction weldingComposite materialSettore ING-IND/16 - Tecnologie E Sistemi Di Lavorazionedescription
AbstractFriction stir welding (FSW) has been reaching a continuously increasing popularity among joining processes since its invention in 1991. Although mainly used for aluminium alloys, it has been successfully applied also to steels. In the present paper, a continuum based FEM model for FSW of steels is proposed, which is three-dimensional Lagrangian implicit, coupled, rigid viscoplastic. The model, whose potential has been analysed through temperature distribution comparisons, is able to predict temperature, strain and strain rate distributions, together with thermal and mechanical loads on the welding tool, at varying main process variables. In this way, the FEM model can be used for process and tool design.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-04-01 |