Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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The Development of Welding Process to Prevent Porosity in MIG Welding of Al 6082-T6

Al 6082-T6 MIG 용접에서 기공방지를 위한 용접공정 개발

  • Baek, Sang-Yeub (Div. of Industrial Facility Automation Engineering., Korea Polytechnic VII) ;
  • Jung, Yon-Ho (Engineering R&D Institute, SEJUNG Co.,LTD.) ;
  • Kim, Won-Il (The school of Mechanical Engineering and Automation., Kyungnam University) ;
  • Cho, Sang-Myung (Div. of Advanced Materials Sci. and Eng., Pukyong National Univ.)
  • 백상엽 (한국폴리텍VII대학 산업설비자동화과) ;
  • 정연호 ((주)세정 기술연구소) ;
  • 김원일 (경남대학교 기계자동화공학부) ;
  • 조상명 (부경대학교 신소재공학부)
  • Received : 2010.01.24
  • Accepted : 2010.10.27
  • Published : 2010.12.31
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Abstract

This paper was described on investigation to prevent porosity in high speed MIG Welding of Al 6082-T6. Porosity measurement was carried out by using image analysis of micrographs with the help of an analysis software. The main parameter was arc length and torch progressive angle. The porosity ratio was increased as arc length was increased. The arc length was increased depending upon the output voltage. By proper selection of pulse waveform parameter, the stable arc of one pulse one drop was generated. The porosity ratio of optimum condition in one pulse one drop was lower than high voltage condition. When torch progressive angle was an angle of advance $10^{\circ}$, porosity ratio was minium.

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References

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