Effect of tool pin diameters on friction stir welding of Aluminium alloy 5083

S.V.Gopala Krishna; B.V.Subrahmanyam; A.Srinivasa Rao

Effect of tool pin diameters on friction stir welding of Aluminium alloy 5083

( Vol-3,Issue-9,September 2016 ) OPEN ACCESS

Author(s):

S.V.Gopala Krishna, B.V.Subrahmanyam, A.Srinivasa Rao

Keywords:

solid state welding, friction stir welding, defects in FSW, parameters, Aluminium alloy.

Abstract:

Friction stir welding is a solid-state welding process invented by the welding institute (TWI) of UK in 1991. The main objective is to study the effect of rotational speed and tool pin diameters of straight cylindrical tool on mechanical properties of Aluminium Alloy5083. Three different tool pin diameters (2.5mm,4mm,6mm) have been used to fabricate the joints at three different tool rotational speeds (710,1120 and 1400rpm) by keeping the constant welding speed and axial force. Tensile properties and micro hardness of the joints have been evaluated.