- VOF 방법을 이용한 GMA 용접의 금속 이행에 관한 동적 해석 (I) - 입상 용적과 스프레이 이행 모드의 해석 -
- ㆍ 저자명
- 최상균,유중돈,김용석
- ㆍ 간행물명
- 大韓溶接學會誌
- ㆍ 권/호정보
- 1997년|15권 3호|pp.36-46 (11 pages)
- ㆍ 발행정보
- 대한용접접합학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Dynamics of molten drop detachment in the Gas Metal Arc (GMA) welding is investigated using the Volume of Fluid(VOF) method. The electromagnetic effects are included in the formulation of the VOF method which has been widely used to analyze the dynamics of the fluid having a free surface. The molten drop geometry, pressure and velocity profiles within the drop are calculated numerically in the cases of globular and spray transfer modes. It appears that the velocity and current distribution affect metal detachment. It is found that the taper is formed and maintained during the spray transfer by the electromagnetic force. Predicted results show reasonably good agreement with the available experimental data which validates the application of the VOF method to metal transfer analysis.