Sharif University of Technology Scientia Iranica 1026-3098 26 4 2019 08 01 Modeling and optimization of friction stir welding parameters in joining 5086 H32 aluminium alloy. 2407 2417 20432 10.24200/sci.2018.5525.1325 EN A. Goyal Department of Mechanical Engineering, Deenbandhu Chhotu Ram University of Science and Technology, Murthal Sonepat, India. R.K. Garg Department of Mechanical Engineering Deenbandhu Chhotu Ram University of science and Technology, Murthal-131039 Sonepat, India. Journal Article 2017 11 07 The present manuscript focuses on developing a mathematical model to predict the<br />intergranular corrosion rate of friction stir welded AA5086 H32 aluminium alloy joints. Six<br />factors-Five levels central composite design matrix, having 52 experiments, is used for design<br />of experiments. The developed model is used to examine the impact of studied process<br />parameters i.e. rotational speed, welding speed, tool shoulder diameter, tool hardness, tilt<br />angle , and pin profile on intergranular corrosion rate of the welded joints. Response surface<br />methodology is used to optimize the process parameters for minimizing the susceptibility to<br />intergranular corrosion attack. The optimum combination of studied parameters, to have<br />minimum corrosion rate i.e. 3.2 mg/cm2, is obtained as 1296 rpm rotational speed, 79.4<br />mm/min welding speed, 14.9 mm tool shoulder diameter, 47.4 HRC tool hardness, 2.380 tilt<br />angle, and square pin profile. https://scientiairanica.sharif.edu/article_20432_be8daa2dd72694da41543efb8d948486.pdf