Effect of Tool Parameter on Mechanical Properties of Friction Stirred Welded Al joints
Shivappa H. A1, Shivrudraiah2

1Shivappa H. A, Assistant Professor, Department of Mechanical Engineering, Dr. Ambedkar Institute of Technology, Bengaluru (Karnataka), India.
2Shivrudraiah Professor, Department of Mechanical Engineering, University of Visvesvaraya College of Engineering, Bengaluru (Karnataka), India.
Manuscript received on 25 March 2019 | Revised Manuscript received on 04 April 2019 | Manuscript Published on 27 April 2019 | PP: 318-322 | Volume-7 Issue-6S2 April 2019 | Retrieval Number: F9067047619/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The objective of the work is to investigate the effect of tool parameters on the mechanical properties of friction stirred welded Al joints. To optimize the tool parameters such as tool type, spindle speed, welding rate and tool angle based on microstructure, tensile and hardness properties of friction stir welded joints of Al specimens using optical microscopy, universal testing machine and Brinell hardness machine respectively. The result shows that the tensile strength varies from 125 to 260 MPa for different process conditions. The highest strength found in welding having plane tool, spindle speed of 1000rpm, 40mm/min welding speed and tool tilt angle of 4˚. Hardness in the welding region found to be less than parental metal and harness profile normally in W shape. Microstructure at the welded region gives the variation in grain size at different thermal zones are nugget zone, thermo mechanical heat affected zone and heat affected zone.
Keywords: FSW, Al Joints, FSW Tool.
Scope of the Article: Mechanical Design