Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Development of Laser-Rotating An Hybrid Welding Process

레이저-회전 아크 하이브리드 용접공정의 개발

  • 김철희 (한국생산기술연구원 정밀접합팀) ;
  • 채현병 (한국생산기술연구원 정밀접합팀) ;
  • 이창우 (한국생산기술연구원 정밀접합팀) ;
  • 김정한 (한국생산기술연구원 정밀접합팀) ;
  • 이세헌 (한양대학교 공과대학 기계공학부)
  • Published : 2006.02.01
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Abstract

Laser-rotating arc hybrid welding was introduced by combining $CO_2$ laser and rotating gas metal arc welding. While the arc rotation enhances the weld pool motion, it reduces the undercut formation which is one of most critical weld defects in the conventional laser-arc hybrid welding. This research investigated the bead characteristics according to the welding parameters such as frequency of rotation, welding voltage, shielding gas composition and interspacing distance between laser and we. The welding parameters were selected to reduce spatter generation and ensure sound weld beads fur bead welding and butt welding with various joint gaps. Gap bridging ability was improved, such that the sound weld beads were achieved for butt joint with up to 2mm joint sap, with no adjustment of CTWD(Contact tip-to-workpiece distance) and electrode diameter.

Keywords

References

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