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Friction Stir Welding of EN 10130 Low Carbon Steel
Akbar Alimohamady,Abbas Eghlimi,Hosain Nourozi Foroshani,Mohamad Alipour Behzadi,Javad Mohammadi,Masoud Kasiri Asgarani 대한용접·접합학회 2020 대한용접·접합학회지 Vol.38 No.3
After evaluating the weldability of 1.5 ㎜ thick EN 10130 steel sheets, the influence of friction stir welding parameters, i.e., rotation speed, tool advancing speed, pin diameter, and shoulder diameter on the properties of sound joints was examined. Using metallography, scanning electron microscope, tensile test, microhardness measurement, limiting dome height test, and forming limit diagrams, it was found that having a flawless joint requires the rotation and advancing speeds to be in the range of 500-1000 rpm and 30-160 ㎜.min<SUP>-1</SUP>, respectively. A design of experiment with 29 samples based on the Box-Behnken response surface methodology method with 5 center points was then utilized to maximize the tensile strength. Accordingly, the safe range and an optimized point for welding parameters were defined.