RT Conference Proceedings
T1 An optimization procedure for the friction stir welding FEM model of corner fillet joints
A1 Buffa, Gianluca
A1 Fratini, Livan
A1 Ingarao, Giuseppe
A1 Di Lorenzo, Rosa
A1 Arregi, Bernaitz
A1 Luz Penalva, Mari
AB Friction stir welding (FSW) is an energy efficient and environmentally "friendly" (no fumes, noise, or sparks) welding process, during which the sheets are welded together in a solid-state joining process. FSW is mature for simple configurations but a significant lack of knowledge is found when dealing with different designs such as T-sections, box sections and corner welds. Although the latter joint morphology has traditionally been considered unfeasible for the process, it seems to have a great potential to be used also for T-joint configurations, a recurrent design pattern in transport applications. A specific tool has been developed and a set of experimental welds has been produced with it. In this paper, experimentally measured and numerically calculated thermal histories were compared and a response surface approach was applied in order to model the behavior of the error functions taken into account. Once the conflicting trend of the selected indicators was observed, a constrained minimization approach was developed. The numerical results, obtained utilizing the numerical parameters from the optimization procedure, showed a very good matching with the experimental evidence. According to the obtained results, the proposed model is able to represent a useful design tool for the process.
PB Wiley-VCH Verlag
SN 9783514007970
YR 2012
FD 2012
LK https://hdl.handle.net/11556/1525
UL https://hdl.handle.net/11556/1525
LA eng
NO Buffa , G , Fratini , L , Ingarao , G , Di Lorenzo , R , Arregi , B & Luz Penalva , M 2012 , An optimization procedure for the friction stir welding FEM model of corner fillet joints . in Proceedings of the 14th International Conference on Metal Forming, METAL FORMING 2012 . vol. SPL. ISSUE , Wiley-VCH Verlag , pp. 567-570 , 14th International Conference on Metal Forming, METAL FORMING 2012 , Krakow , Poland , 16/09/12 .
NO conference
DS TECNALIA Publications
RD 26 jul 2024