Proceedings of the Korean Society of Machine Tool Engineers Conference (한국공작기계학회:학술대회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Resonance Frequency Analysis to Laser Welding Condition by Time-average ESPI

Time-average ESPI에 의한 레이저용접 조건에 따른 공진주파수 특성 분석

  • 이유황 (조선대 대학원) ;
  • 김경석 (조선대 기계정보공학과) ;
  • 정성욱 (조선대 레이저응용신기술개발연구센터) ;
  • 최태호 (조선대 레이저응용신기술개발연구센터)
  • Published : 2004.10.01
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Abstract

This paper describes the vibration characteristics of Nd:YAG laser welding plates analyzed time-average Electronic Speckle Pattern Interferometry(ESPI). In laser welding, the travel speed has influence on a mechanical properties, such as elastic modules, response frequencies and so on, which is resulted on a residual stress of the welding zone. the response frequencies related to elastic modules are determined by time-average ESPI and the results, as compared to each condition, are used to estimate optimal condition of travel speed.

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