Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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A Study on the Acoustic Emission Characteristics of Weld Heat Affected Zone in SWS 490A Steel(1)

SWS 490A 강의 용접 열영향부 음향방출 특성 에 대한 연구(1)

  • 이장규 (인천대학교 기계공학과) ;
  • 우창기 (인천대학교 기계공학) ;
  • 박성완 (인천전문대학 컴퓨터응용기계설계) ;
  • 윤종희 (인천대학교 대학원 기계공학) ;
  • 조진호 (인천대학교 대학원 기계공학) ;
  • 김봉각 (충청대학 메카트로닉스학) ;
  • 구영덕 (한국과학기술정보연구원)
  • Published : 2004.08.01
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Abstract

The object of this study is to investigate the effect of compounded welding through the AE(Acoustic Emission) characteristics for weld HAZ(Heat Affected Zone) under the static tensile test. This study was carried out an SWS 490A, high tension steel for electric shield metal arc welding(SMAW), $CO_2$ gas arc welding and TIG welding. Data displays are based on the measured parameters of the AE signals, along with environmental variables such as time and load. The accumulated AE event curve of HAZ definitely have the point of inflection subject to tensile test. The results of the tensile test of HAZ come out electric shield arc welding ＞$CO_2$ gas arc welding＞TIG welding in case of single welding, but generally the tensile test of HAZ come out electric shield arc welding＞ TIG welding ＞ $CO_2$ gas arc welding. These history plots give us useful and powerful information to analyze the results of material evaluation testing.

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References

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