Vol.15, No.1, 2015, pp.51–54
UDC  669.715:539.42 620.178.74:669.715

CRACK RESISTANCE OF ALUMINIUM ALLOY FRICTION STIR WELDED JOINT

Horia Dascau1, Snežana Kirin2, Aleksandar Sedmak3, Abdsalam Eramah4, Srđan Tadić2

1)ISIM, Timisoara, Romania, dascau@isim.ro

2)University of Belgrade, Innovation centre of the Faculty of Mechanical Engineering, Belgrade, Serbia

3)University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia

4)University of Tripoli, Libya

Abstract

Charpy testing is conducted on a high-speed data acquisition instrument, using instrumented pendulum to separate energies for crack initiation and propagation. The J-R curves are used to determine JIc, as the measure of fracture toughness. The Taguchi method with a special design of orthogonal matrices to reduce the number of experiments to a reasonable level has been applied.

Keywords: friction stir welding, Taguchi method, Charpy instrumented testing, fracture toughness

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