To Measure Mechanical Properties along Thickness in FSW Welded Zone by Applied ESPI Technology

Abstract

The purposes of this paper are to weld dissimilar aluminum alloys joints, AA1050 and AA6061, and to find Young’s modulus on the welded zone along the thickness. Dissimilar aluminum alloys plates are friction stir welded in the butt configuration by using an adapted milling machine. Young’s modulus of components is found out by applied a reverse method and the out-of-plane displacement is measured by Electronic Speckle Pattern Interferometry. The out-of-plane displacement of the welded cantilever beam is subjected to a concentrated load. The results reveal that Young’s modulus in the welded zone is the deeper the smaller.