Effect of Si on Arc Stability of MAG Welding

MAG용접의 Arc안정성에 미치는 Si의 영향

  • 안영호 (POSCO 기술연구소 후판연구팀) ;
  • 이종봉 (POSCO 기술연구소 후판연구팀) ;
  • 엄동석 (부산대학교 조선해양공학과)
  • Published : 1998.12.01

Abstract

The effect of Si content in welding wires on th arc stability was investigate, in the region of short circuit transfer and spray transfer. In the region of short circuit transfer, with increasing Si content, average arcing time and average short circuit time were increased. Therefore, droplet transfer frequency was decreased, due to the increase of arcing time and peak current at the moment of arc-reiginition was increased, due to the increase of short circuit time. In the region of spray transfer, the fluctuations of arc current and arc voltage was the most stable in wire with Si content of about 00.60 wt.%.

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