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$CO_2$ 레이저를 이용한 용접튜브 제조공정에서의 용접선 추적 및 용접품질 모니터링
서정,이제훈,김정오,강희신,이문용,정병훈,Suh, Jeong,Lee, Jae-Hoon,Kim, Jeng-O,Kang, Hee-Shin,Lee, Moon-Yong,Jung, Byung-Hun 대한용접접합학회 2003 대한용접·접합학회지 Vol.21 No.7
Weld quality monitoring and seam tracking along the butt-joint lengthwise to the tube axis are studied. The material of tube is 60kg/$\textrm{mm}^2$ grade steel sheet, and the longitudinal butt-joint is shaped by 2 roll bending machine. The tube with a thickness of 1.5mm, diameter of 105.4mm and length of 2000mm is successfully obtained by the $CO_2$ laser welding system equipped with a seam tracker and plasma sensor. Experimental results show that the developed welding system can be used for the precision seam tracking and the real-time monitoring of weld quality, and the laser welded tube can be used for car body md component after tubular hydroforming.