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초록· 키워드
Miniaturization and lightweight are increasingly the recent trend in the manufacture of electric appliances and machine parts. So technology of micro joining for joining materials is indispensable. This paper gives a description of an experimental study of the ultrasonic welding of metals. In ultrasonic metal welding, high frequency vibrations are combined with pressure to join two materials together quickly and securely, without producing significant amount of heat. Ultrasonic metal welder consists of Transducer, Booster, and Horn that are designed very accurately to get the natural frequencies and vibration mode.
In this study, The horn was designed and analyzed the natural frequency by the modal analysis and harmonic analysis. And using a fiber optic sensor, we measured the amplitude and analyzed the Fast Fourier Transformed result. Using the horn, Ultrasonic metal welding between Ni sheet and Ni sheet of O.1㎜ thickness was accomplished under the optimal conditions of static pressure 0.15㎫, vibration amplitude 45% and welding time of 0.28s. This result can be used for ultrasonic metal welding in manufacturing industry.
In this study, The horn was designed and analyzed the natural frequency by the modal analysis and harmonic analysis. And using a fiber optic sensor, we measured the amplitude and analyzed the Fast Fourier Transformed result. Using the horn, Ultrasonic metal welding between Ni sheet and Ni sheet of O.1㎜ thickness was accomplished under the optimal conditions of static pressure 0.15㎫, vibration amplitude 45% and welding time of 0.28s. This result can be used for ultrasonic metal welding in manufacturing industry.
#Ultrasonic metal welding(초음파 금속 용착)
#Horn(혼)
#modal analysis(모달 해석)
#Fiber optic sensor(광섬유 센서)
#FFT(고속 푸리에 변환)
#Test of tensile load(인장시험)
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목차
- ABSTRACT
- 1. 서론
- 2. 유한요소해석
- 3. 실험장치 및 방법
- 4. 실험 결과
- 5. 결론
- 참고문헌
참고문헌
참고문헌 신청최근 본 자료
UCI(KEPA) : I410-ECN-0101-2010-581-002938480
