Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Ultrasonic Deposit Junction Characteristic Evaluation of Metal Sheets Al/Al and Al/Cu

금속 박판 Al/Al 및 Al/Cu의 초음파 용착 접합성 평가

  • Seo, Jeong-Seok (Dept. of Mechanical Engineering, Incheon University) ;
  • Beck, Si Young (Industry Academy Cooperation Foundation University of Soonchunhyang)
  • 서정석 (인천대학교 기계공학과) ;
  • 백시영 (순천향대학교 산학협력단)
  • Received : 2011.04.07
  • Published : 2011.08.25
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Abstract

This paper describes an experimental study on ultrasonic welding of similar and dissimilar metals. There are optimum welding conditions which are found for welding of Al/Al and Al/Cu. It evaluated weldability using tensile test, SEM observation and EDX-ray analysis. Both ultrasonic welding of Al/Al and Al/Cu have amplitude as the variable factor. Al/Cu welding was examined again with welding time as variable factor to find the best conditions. The more welding time or amplitude increase, the better weldability. The optimum conditions for ultrasonic welding of Al/Al were formed at pressure 0.25 MPa, welding time 0.25 sec, amplitude 90%. Pressure 0.25 MPa, welding time 0.4 sec, amplitude 80% are optimized for Al/Cu ultrasonic metal welding and solid-state diffusion generated by ultrasonic vibration and frictional heat is confirmed at the welded interface.

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