Effect of Ti on Spatter Generation of $CO_2$Welding

$CO_2$용접시 Spatter발생에 미치는 Ti의 영향

  • 안영호 (POSCO 기술연구소 강재용접연구팀) ;
  • 이종봉 (POSCO 기술연구소 강재용접연구팀) ;
  • 방국수 (포항산업과학연구원 접합가공연구팀) ;
  • 엄동석 (부산대학교 조선해양공학과)
  • Published : 1996.10.01

Abstract

The effects of Ti addition in welding wire on the spatter generation and the droplet transfer phenomena were investigated. With increasing Ti content the spattering rate was decreased but the ratio of large size spatter (D $\geq$ 1. 0mm) was increased in both short circuit and globular transfer mode of $CO_2$welding. In short circuit transfer region, the arcing time was increased and the droplet transfer frequency was decreased with increasing Ti content In globular transfer region, the transition current and voltage to globular transfer was lowered and the welding condition region for stable globular transfer was widened with increasing Ti content.

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