RT Journal Article
SR Electronic
A1 Prisco, Umberto
A1 Scherillo, Fabio
T1 Tensile Properties of AA6156-T4 Friction Stir Welded Joints in As-Welded and Post-Weld Aged Condition
JF Manufacturing Technology Journal
YR 2016
VO 16
IS 4
SP 786
OP 792
DO 10.21062/ujep/x.2016/a/1213-2489/MT/16/4/786
UL https://journalmt.com/artkey/mft-201604-0023.php
AB The effect of the T62 post-weld heat treatment on the tensile strength of AA6156-T4 friction stir welded joints is studied. To this aim, the 0.2% proof stress and the tensile strength of as-welded and post-weld treated joints as function of the rotating and welding speed was analyzed performing a complete factorial design with three levels for each studied parameter. 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 through statistical tools such as Mallow's CP, S, R2 and R2(adj). The developed regression models can be effectively used to predict the mechanical proprieties of the joints at 95% confidence level.