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Experimental studies on optimized mechanical properties while dissimilar joining AA6061 and AA5010 in a friction stir welding process

  • Masoud Ahmadnia
  • Saeid Shahraki
  • Mojtaba Ahmadi KamarposhtiEmail author
ORIGINAL ARTICLE

Abstract

One of the advantages of friction stir welding process is its ability to join dissimilar metals and alloys. The aim of this work is to predict mechanical properties, i.e., tensile strength, hardness, and elongation of aluminum 6061 to aluminum 5010 joint that is fabricated by friction stir welding process. Here, response surface methodology based on central composite design with three parameters, five levels, and 20 runs was used to conduct experiments and to develop mathematical regression models. The three welding parameters considered were tool rotary speed, welding speed, and plunging depth. Analysis of variance was then performed to check the adequacy of developed models. The effects of process factors on mechanical properties were studied using developed mathematical models and on the basis of macrostructure and microstructure characterization and fractography of joints which are examined by optical and scanning electron microscopy. Finally, optimal parameter setting was identified by performing optimization through desirability approach function.

Keywords

Friction stir welding Dissimilar aluminum alloys Response surface methodology Microstructure characterization Fractography Optimization 

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Copyright information

© Springer-Verlag London 2016

Authors and Affiliations

  • Masoud Ahmadnia
    • 1
  • Saeid Shahraki
    • 2
  • Mojtaba Ahmadi Kamarposhti
    • 3
    Email author
  1. 1.Department of Mechanical EngineeringKhajenasir University of TechnologyTehranIran
  2. 2.Department of Mechanical EngineeringUniversity of ZabolZabolIran
  3. 3.Department of Mechanical Engineering, Sari BranchIslamic Azad UniversitySariIran

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