Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Effects of Different Shielding Gases in Laser Welding of Secondary Ni battery with Multi-thin Plates

이차전지용 니켈 다층 박판의 레이저 용접 보호가스의 영향

  • You, Young-Tae (Department of Mechanical System Engineering, Chosun University) ;
  • Lee, Ka-Ram (Research & Development Center Inno6 Inc.) ;
  • Kim, Jin-Woo (Department of Mechanical System Engineering, Chosun University)
  • Received : 2016.06.09
  • Accepted : 2016.08.02
  • Published : 2016.10.15
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Abstract

The demand for the eco-friendly vehicles is skyrocketing because of the increasing $CO_2$ emissions and global warming. In the industrial field, the battery process, a core part of an eco-friendly vehicle, is drawing increased attention; its weight lightening as well as high energy density are becoming increasingly important. In this study, pure Ni plates that were used as the battery pole plate were welded using the laser. The lab joint welding was conducted on ten pure Ni plates at a laser power of 1900 W and a feed speed of 2.8-3.4 m/min. As observed in the experiment, a faster feed speed reduced the bead width, but the laser did not penetrate all ten specimen plates. In addition, pores were trapped when protective gas was used, but they were not trapped when the welding was conducted in atmospheric condition.

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References

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