가스 메탈 아크 용접에서 토치 위빙 중 표면 입열 분포 해석에 관한 연구

A Study of Heat Input Distribution on the Surface during Torch Weaving in Gas Metal Arc Welding

  • 김용재 (한양대학교 대학원 정밀기계공학과) ;
  • 이세현 (한양대학교 기계공학부)
  • 발행 : 2001.04.01

초록

In weaving welding where a V groove exists, the heat input distribution is an important factor that determines the defectiveness of the bead shape, undercut and over-lap. In this study, the amount of heat input, which is determined by the welding current, voltage, speed and weaving conditions is calculated through numerical methods. Furthermore, the heat input distribution as a two- dimensional heat source was observed when applied to each groove. Therefore, a heat input control algorithm is suggested to prevent the defects generated from undercut or over-lap, which was verified through an analysis of the heat input distribution.