Laser Solutions (한국레이저가공학회지)

Korean Society of Laser Processing (한국레이저가공학회)
권호 표지

A Comparison study on cross and coaxial nozzle characteristic by using CW Nd:YAG Laser

연속파형 Nd:YAG 레이저 용접에서 크로스노즐과 동축노즐 특성 비교

  • Lee, Ka Ram (Department of Advanced parts and Materials Engineering, Chosun University) ;
  • Hwang, Chan Youn (Department of Advanced parts and Materials Engineering, Chosun University) ;
  • Park, Eun Kyeong (Department of Advanced parts and Materials Engineering, Chosun University) ;
  • Yoo, Young Tae (Department of Mechatronics Engineering, Chosun University)
  • 이가람 (조선대학교 첨단부품소재공학과) ;
  • 황찬연 (조선대학교 첨단부품소재공학과) ;
  • 박은경 (조선대학교 첨단부품소재공학과) ;
  • 유영태 (조선대학교 메카트로닉스공학과)
  • Received : 2013.07.10
  • Accepted : 2013.09.17
  • Published : 2013.09.30
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Abstract

As parts are becoming more complex and smaller with the development of new materials, high-quality laser precision processing is getting the limelight. Laser enables quick processing and less deformation of materials. It also enables welding with diverse materials. In this study, the pole rod and tap for the secondary battery were laser-welded using cross and coaxial nozzles. The results of the comparative analysis of cross and coaxial nozzles according to the processing parameters showed that the coaxial nozzle had more sensitive welding characteristic to the nozzle position or pressure than the cross nozzle. This indicated that the processing parameters should be carefully determined for the welding with the coaxial nozzle. The pole rod and tap were welded together in a form of T joint to improve the output of the secondary battery, and the cross nozzle had a better welding characteristic than the coaxial nozzle.

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