Mechanical Characteristics and Microstructure on Friction Stir Welded Joints with 6061-T6 Aluminium Alloy

알루미늄합금 6061-T6의 마찰교반용접 조건에 따른 기계적특성 및 용접부 조직평가

  • 장석기 (목포해양대학교 기관시스템공학부) ;
  • 박종식 (목포해양대학교)
  • Published : 2009.07.01


This paper shows mechanical properties and behaviors of macro- and micro-structures on friction stir welded specimen with 6061-T6 aluminum alloy plate. It apparently results in defect-free weld zone jointed at welding conditions like the traverse speed of 267mm/min, tool rotation speed of 2500rpm, pin inserted depth of 4.5mm and tilting angle of $2^{\circ}$ with tool dimensions such as tool pin diameter of 5mm, shoulder diameter of 15mm and pin length of 4.5mm. The tensile stress ${\sigma}_T=228MPa$ and the yield point ${\sigma}Y=141MPa$ are obtained at the condition of traverse speed of 267mm/min and tool rotation speed of 2500rpm. With the constant rotation speed, the higher traverse speed become, the higher tensile stress and yielding point become. Vickers hardness for welding zone profile were also presented.


Friction Stir Welding(FSW);Heat Affected Zone(HAZ);Thermo-Mechanically Affected Zone(TMAZ);Traverse Speed;Rotating Speed


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