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[학술저널]

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김주환(서울대학교) 신현표(동양미래대학교)

DOI : 10.7736/KSPE.2019.36.10.961

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초록

In recent years, the manufacture connector terminals of electronic devices require an accuracy of several microns and high productivity, thus the need to develop the ultra-high speed press technology. However, increased impulse and vibration of ultra-high speed press have reduced durability of stamping die and induced serious tool wear. To solve this problem, we investigate the changes of vibrations occurring in the die and press machine under ultra-high speed working condition by using a piezoelectric sensor. Moreover, by analyzing the design parameters such as stroke, stripper movement, and collision velocity of the die, impulse and vibration were decreased, thus improving the punch life by 50% under 2,000 SPM (stroke per minute) condition

목차

1. 초고속 프레스 가공의 기술
2. 초고속 프레스 작업 시 발생하는 문제
3. 실험 장치 및 방법
4. 실험 결과
5. 결론
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