필렛용접에서의 결함발생 원인 분석 및 저감 방안

An Analysis of the Cause of Porosity Generation and Reduction Plan in Fillet Welding

  • 최기영 (현대중공업 산업기술연구소 용접연구실) ;
  • 김영필 (현대중공업 산업기술연구소 용접연구실) ;
  • 김경주 (현대중공업 산업기술연구소 용접연구실) ;
  • 김대순 (현대중공업 산업기술연구소 용접연구실) ;
  • 배상득 (현대중공업 산업기술연구소 용접연구실)
  • Choi, K.Y. (Hyundai Industrial Research Institute, Hyundai Heavy industries Co., Ltd.) ;
  • Kim, Y.P. (Hyundai Industrial Research Institute, Hyundai Heavy industries Co., Ltd.) ;
  • Kim, K.J. (Hyundai Industrial Research Institute, Hyundai Heavy industries Co., Ltd.) ;
  • Kim, D.S. (Hyundai Industrial Research Institute, Hyundai Heavy industries Co., Ltd.) ;
  • Bae, S.D. (Hyundai Industrial Research Institute, Hyundai Heavy industries Co., Ltd.)
  • 발행 : 2006.09.30

초록

Generally, porosity which was formed by pyrolysis of the primer is usually generated in the weld metal in respect of increase of the welding speed. in order to analyze the cause of porosity generation, this study was performed using FCAW(flux cored arc welding) process for three kinds of inorganic.zinc primer. in addition the evaluation by influence of welding method on porosity generation is conducted to compare between FCAW and MAG(metal active gas) welding with the same inorganic zinc primer. As the result of this investigation, not only primer of lower organic binder and zinc but also FCAW process than MAG in fillet welding have been verified the excellent resistance to the porosity generation for horizontal fillet welding.

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