- $CO_2$ 용접에서 전류 펄스 조건이 스패터 발생에 미치는 영향
- ㆍ 저자명
- 강덕일,최재호,장영섭,김용석
- ㆍ 간행물명
- 大韓溶接學會誌
- ㆍ 권/호정보
- 1998년|16권 4호|pp.63-72 (10 pages)
- ㆍ 발행정보
- 대한용접접합학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In this study, the effects of the current pulsing conditions, on the spatter generation rate during the $CO_2$ gas metal arc welding (GMAW) were investigated. Normally using the inverter type power supply, of which the welding current waveform was regulated to reduce the spatter generation rate, but in this study pulsing was imposed on the welding current. Observation of the metal transfer phenomena during the pulsed current GMAS indicated that the droplet transfer from the electrode via the short circuit transfer and the repelling transfer mode could be minimized by selecting optimum combinations of pulsing parameters, which include base and peak current, base and pak duration. It was also demonstrated in this study that proper combinations of the pulsing parameters led to reduce generation of spatters during GMAW shielded by $CO_2$ gas.