초음파 금속 용착용 40kHz 혼의 설계와 용착성 평가

Design and Weldability Verification of the 40kHz Horn for Ultrasonic Metal Welding

  • Jang, Ho Su (Department of Mechanical Engineering, Incheon National University) ;
  • Park, Woo Yeol (Department of Mechanical Engineering, Incheon National University) ;
  • Park, Dong Sam (Department of Mechanical Engineering, Incheon National University)
  • 발행 : 2013.04.30

초록

The horn is a key part of the ultrasonic welder. As the shape, mass and material of a horn have effects on the resonant frequency and the vibration mode in ultrasonic welding, a horn has to be designed and manufactured accurately. In this study, 40kHz band horn was designed and manufactured through the vibration mode and finite element analysis. A result of modal analysis showed that the natural frequency of the horn was 39,794Hz, and the frequency response by a harmonic response analysis was 39,800Hz - close to the intended frequency, 40kHz. In addition, weldability of the developed horn was estimated by welding of two Ni sheets and tensile-shear test of welded samples. It was shown the developed horn could be used in metal sheet welding.

키워드

참고문헌

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