조선용 아연코팅강판의 CO2 레이저 겹치기 용접시 인프로세스 측정신호와 용접결함과의 관련성

• 영문명: The Relationship between In-process Signals and Weld Defect in CO2 Laser Lap Welding of Zn-coated Steel for Shipbuilding
• 발행기관: 한국레이저가공학회
• 저자명: 김종도(Jong-Do KIM) 이창제(Chang-Je LEE) 이재범(Jae-Bum LEE) 서 정(Jeong Suh)
• 간행물 정보: 『한국레이저가공학회지』한국레이저가공학회지 제13권 제3호, 1~6쪽, 전체 6쪽
• 주제분류: 공학 > 기계공학
• 파일형태: PDF
• 발행일자: 2010.09.30

영문 초록

The in-process monitoring of CO2 welding of Zn-coated steel plates has been studied and compared with that of conventional thin plates. Relationships between weld defects and plasma emission signals were evaluated in laser lap joint of thick Zn-coated steel. According to the study, weld defects were found to increase with Zn content. As a result, measured plasma emission signals also decreased. In case of plate with 15μm-thick Zn-coated layer, defects caused by evaporation of Zn could, therfore, controled by gap of 0.1mm, resulting in a stable emission signals. However, the amplitude of signals fluctuated very widely. Variation of amplitude sould be limited in 3-8V by FFT smoothing.

목차

1. 서 론

2. 사용재료 및 실험방법

3. 실험결과 고찰

4. 결 론

참고문헌

키워드

CO2 laser lap welding Zn-coated steel weld defect plasma emission signal monitoring