OPTIMIZATION OF FRICTION STIR WELDING PARAMETERS OF DISSIMILAR AA5052 AND AA6061-T6 JOINT FOR ACHIEVING OPTIMUM MICROSTRUCTURE AND MECHANICAL PROPERTIES

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FALLAHI AREZOUDAR ALIREZA; HOSSEINI AKBAR

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Modares Mechanical Engineering Year:2017 | Volume:17 | Issue:7 Page(s): 20-30

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Title

OPTIMIZATION OF FRICTION STIR WELDING PARAMETERS OF DISSIMILAR AA5052 AND AA6061-T6 JOINT FOR ACHIEVING OPTIMUM MICROSTRUCTURE AND MECHANICAL PROPERTIES

Author(s)

FALLAHI AREZOUDAR ALIREZA | HOSSEINI AKBAR | Issue Writer Certificate

Keywords

FRICTION STIR WELDINGQ1

THERMAL SIMULATIONQ2

MECHANICAL PROPERTIESQ1

TAGUCHI METHODQ1

DISSIMILAR ALLOYSQ1

Abstract

FRICTION STIR WELDING is a solid state process in which no fusion occurs on it. This method of welding is using for metals that have low weld ability or their fusion welds do not have good quality. The effect of FRICTION STIR WELDING parameters, including rotational speed, linear speed, shoulder diameter and pin diameter on AA5052 to AA6061 dissimilar joints was studied in this paper. These parameters were optimized Using TAGUCHI METHOD of Design of Experiments. Then THERMAL SIMULATION of process was done with ABAQUS software in which the temperature distribution results were in good agreement with the simulation results. The results of specimens tensile tests were confirmed by metallography and micro-hardness tests result. With increasing the linear speed and reducing the rotational speed, heat input reduced and grain size of all weld areas is decreased. The retreating side of all instances had a smaller grain size than advancing side. This is because of the thermal properties of 6061 alloy (higher conductivity and lower heat capacity), which leads to lower peak temperature and higher thermal diffusivity. The optimal parameters including rotational speed of 1400 rpm, linear speed of 80 mm/min, shoulder diameter of 15 mm and a pin diameter of 3.5 mm, were achieved. The maximum tensile strength of 228.3 MPa was achieved in rotation speed of 1400 RPM, linear speed of 80 mm/min, shoulder diameter of 15 mm and pin diameter of 3.5 mm.

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APA: Copy

FALLAHI AREZOUDAR, ALIREZA, & HOSSEINI, AKBAR. (2017). OPTIMIZATION OF FRICTION STIR WELDING PARAMETERS OF DISSIMILAR AA5052 AND AA6061-T6 JOINT FOR ACHIEVING OPTIMUM MICROSTRUCTURE AND MECHANICAL PROPERTIES. MODARES MECHANICAL ENGINEERING, 17(7 ), 20-30. SID. https://sid.ir/paper/179331/en

Vancouver: Copy

FALLAHI AREZOUDAR ALIREZA, HOSSEINI AKBAR. OPTIMIZATION OF FRICTION STIR WELDING PARAMETERS OF DISSIMILAR AA5052 AND AA6061-T6 JOINT FOR ACHIEVING OPTIMUM MICROSTRUCTURE AND MECHANICAL PROPERTIES. MODARES MECHANICAL ENGINEERING[Internet]. 2017;17(7 ):20-30. Available from: https://sid.ir/paper/179331/en

IEEE: Copy

ALIREZA FALLAHI AREZOUDAR, and AKBAR HOSSEINI, “OPTIMIZATION OF FRICTION STIR WELDING PARAMETERS OF DISSIMILAR AA5052 AND AA6061-T6 JOINT FOR ACHIEVING OPTIMUM MICROSTRUCTURE AND MECHANICAL PROPERTIES,” MODARES MECHANICAL ENGINEERING, vol. 17, no. 7 , pp. 20–30, 2017, [Online]. Available: https://sid.ir/paper/179331/en

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