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Optimization of parameters for micro friction stir welding of aluminum 5052 using Taguchi technique

  • Yasir Sagheer-AbbasiEmail author
  • Shahid Ikramullah-Butt
  • Ghulam Hussain
  • Syed Husain Imran
  • Atif Mohammad-Khan
  • Raja Abdul Baseer
ORIGINAL ARTICLE
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Abstract

The study investigates the effect of basic parameters in friction stir welding of thin sheet. Using Aluminum Al 5052 as the base material and Taguchi L9 orthogonal array for optimization, three vital process parameters namely rotational speed, probe shape, and transverse speed were studied with the aim to maximize the tensile strength. Alongside the process, the effect on micro hardness and grain structure of the material was also investigated and metallographic properties were studied using Scanning Electron Microscopy (SEM). Fixtures made from Bakelite and mild steel were used in the process. Experiments performed on Bakelite fixture produced defective joint for all tool shapes. The results designate square-shaped tool as the one producing sound, defect-free, and high-strength joints. Hardness increases with increase in rotational speed and decreases with increase in transverse speed. Optimal parameters found were transverse speed 200 mm/min, rotational speed 3250 rpm, and square shaped tool.

Keywords

Friction stir welding Al-5052 Taguchi ANOVA Tool shape 

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Mechanical and Manufacturing EngineeringNational University of Science and TechnologyIslamabadPakistan
  2. 2.Ghulam Ishaq Khan Institute of Engineering Science and TechnologySwabiPakistan

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