Tensile properties of AA6156-T4 friction stir welded joints were studied in the as-welded and T62 postweld heat treated condition. To analyze the influence of rotating and welding speed on the 0.2 % proof stress and tensile strength of the two classes of joints, a complete full factorial design with three levels for each studied parameter was performed. Statistical analyses were carried out to establish empirical models of the tensile properties of the joints as a function of the studied welding parameters. The obtained models were validated by statistical tools such as Mallow's C-P, S, R-2 and R-2( adj). The developed regression models can be effectively used to predict the mechanical properties of the joints at 95 % confidence level.

Mechanical characterization by DOE analysis of AA6156-T4 friction stir welded joints in as-welded and post-weld aged condition

TRONCI, AURELIO
2015-01-01

Abstract

Tensile properties of AA6156-T4 friction stir welded joints were studied in the as-welded and T62 postweld heat treated condition. To analyze the influence of rotating and welding speed on the 0.2 % proof stress and tensile strength of the two classes of joints, a complete full factorial design with three levels for each studied parameter was performed. Statistical analyses were carried out to establish empirical models of the tensile properties of the joints as a function of the studied welding parameters. The obtained models were validated by statistical tools such as Mallow's C-P, S, R-2 and R-2( adj). The developed regression models can be effectively used to predict the mechanical properties of the joints at 95 % confidence level.
2015
AA6156; ANOVA; DOE; Friction stir welding; Tensile properties;
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/65673
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