Open AccessInfluence of Tool Pin Profile in Underwater Friction Stir Welding of Aluminium 6061 Alloy
Author(s) -
Peter Antony Premkumar,
A. Ruskin Bruce,
P. R. YogeshKrishnan
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/923/1/012036
Subject(s) - friction stir welding , welding , materials science , aluminium , metallurgy , heat affected zone , alloy , aluminium alloy , conical surface , underwater , composite material , geology , oceanography
Light metals like Aluminium and Magnesium are usually joined by welding processes like Friction Stir Welding (FSW). Aluminium being light weighted is used in various aeronautical applications. During welding using FSW, the Heat affected zone (HAZ) obtained is very much high due to direct exposure of air. In order to minimise the heat affected zone and also to improve the Weld strength, an attempt has been made to weld Aluminium Al 6061 alloy using Underwater Friction stir welding (UFSW). By carrying out the FSW process underwater, the hardness of the welded structures is also increased due to rapid cooling. In this present study, the effect of different pin profiles like cylindrical, square and conical profiles on the welded specimen is studied. Consequently, the mechanical properties of these welded specimens are also compared and analysed.