자동차 부품 개발을 위한 원격 레이저 용접기술

• 영문명: The remote welding technology for development of Automobile Components using CO₂Laser & Scanner
• 발행기관: 한국레이저가공학회
• 저자명: 송문종(M. J. Song) 송영채, 정병훈(B. H. Jung) 이문용(M. Y. Lee)
• 간행물 정보: 『한국레이저가공학회 학술대회 논문집』2008년도 춘계학술발표대회 논문집, 161~164쪽, 전체 4쪽
• 주제분류: 공학 > 기계공학
• 파일형태: PDF
• 발행일자: 2008.06.30

영문 초록

The laser welding of the car body and components has been spread in the automotive industry. The Nd:YAG laser welding system could be used in 3D welding with robot. However, this system cannot efficiently reduce the welding cycle time according to various welding sequences because the robot's moving time is same that of the resistant spot welding system. But the remote welding system with high power CO₂laser and scanner makes it possible cycle time much faster than the robot laser welding system. In the CO₂laser remote welding system, laser ceam can be rapidly transferred to a workpiece by moving mirrors of scanner system. So, it makes reducing the cycle time of welding process. Therefore, in this paper, the characteristic of weld strength according to patterns of weld bead on CO₂laser welding was investigated. Also, the relationship between shape of weld bead and value of ensile load was studied. Finally, the optimum remote welding condition for car bumper was investigated.

키워드

Remote laser welding CO₂laser Scanner Patterns of weld bead Car bumper