Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Remote Welding of Automobile Components using CO2 Laser and Scanner

자동차 부품의 원격 레이저 용접기술

  • Suh, Jeong (Korea Institute of Machinery & Materials, Laser Application Team) ;
  • Lee, Mun-Yong (Technical Institute of Sungwoo Hitech Co., LTD) ;
  • Jung, Beong-Hun (Technical Institute of Sungwoo Hitech Co., LTD) ;
  • Song, Mun-Jong (Technical Institute of Sungwoo Hitech Co., LTD) ;
  • Kang, Hie-Sin (Korea Institute of Machinery & Materials, Laser Application Team) ;
  • Kim, Jeong-O (Korea Institute of Machinery & Materials, Laser Application Team)
  • 서정 (한국기계연구원 레이저공정연구팀) ;
  • 이문용 ((주)성우하이텍 기술연구소) ;
  • 정병훈 ((주)성우하이텍 기술연구소) ;
  • 송문종 ((주)성우하이텍 기술연구소) ;
  • 강희신 (한국기계연구원 레이저공정연구팀) ;
  • 김정오 (한국기계연구원 레이저공정연구팀)
  • Published : 2008.10.31
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Abstract

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 $CO_2$ laser and scanner makes it possible welding cycle time much faster than the robot laser welding system. In the $CO_2$ laser remote welding system, laser beam can be rapidly transferred to a workpiece by moving mirrors of scanner system. So, it makes reducing the cycle time of welding process and shaping various welding patterns easily. Therefore, in this paper, the characteristic of weld strength according to patterns of weld bead on $CO_2$ laser welding was investigated. Also, the relationship between shape of weld bead and value of tensile load was studied. Finally, the optimum remote welding condition for car bumper was investigated.

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  1. The Design of Manufacturing Process Optimization for Aluminum Laser Welding using Remote Scanner vol.29, pp.6, 2011, https://doi.org/10.5781/KWJS.2011.29.6.702