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Al 6061 합금의 마찰교반용접 시 접합변수가 강도에 미치는 영향

The Effects of Joining Factors on Strength of Al 6061 Alloy in FSW

  • 강대민 (부경대학교 기계공학과) ;
  • 이대열 (대한상공회의소 부산인력개발원) ;
  • 박경도 (대한상공회의소 부산인력개발원)
  • 투고 : 2017.09.04
  • 심사 : 2017.09.28
  • 발행 : 2017.10.31

초록

Friction Stir Welding (FSW) is useful technique to join aluminum alloy with energy efficient and environment friendly. In this paper, the design of experiment with three-way factorial design was adopted for optimum conditions of welding variables in the FSW of Al 6061 alloy. Tools of shoulder diameter of 9, 12, 15 mm and pin length of 1.5 mm were used. Also the material's dimension for welding were $2{\times}100{\times}150mm$, and the tensile specimens were worked by water-jet technique. Welding variables were shoulder diameter, rotating speed and travel speed of tool. From the results of this work, the welding factor influenced on yield strength most was travel speed and the optimum condition for FSW was predicted as the shoulder diameter of 15 mm, welding speed of 500 mm/min and rotating speed of 2,000 rpm. Also the presumption range of yield strength at optimal condition of reliability 99% was estimated to $207.19{\pm}9.91MPa$.

키워드

참고문헌

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