Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Characteristics of Fiber Laser Lap Welding of Pure Aluminum Multi-thin Plate

순수 알루미늄 다층 박판의 Fiber 레이저 겹치기 용접 특성

  • Yang, Yun Seok (Department of Advanced parts & Materials Engineering, Chosun Univ.) ;
  • Park, Eun Kyeong (Department of Advanced parts & Materials Engineering, Chosun Univ.) ;
  • Lee, Ka Ram (Department of Advanced parts & Materials Engineering, Chosun Univ.) ;
  • Yoo, Young Tae (Department of Mechatronics, Engineering, Chosun Univ.)
  • 양윤석 (조선대학교 첨단부품소재공학과) ;
  • 박은경 (조선대학교 첨단부품소재공학과) ;
  • 이가람 (조선대학교 첨단부품소재공학과) ;
  • 유영태 (조선대학교 메카트로닉스공학과)
  • Received : 2013.04.25
  • Accepted : 2013.08.06
  • Published : 2013.09.01
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Abstract

In this study, we analyzed and compared the ultrasonic welding with the laser welding for the pure aluminium thin plates in a series of secondary lithium-ion batteries which are currently being produced by the ultrasonic welding; and performed the experiment for the purpose of the preceding study to replace the ultrasonic welding method with the laser welding method. As a result, the weld width of ultrasonic welding was 5mm, but that of laser welding was about 1~1.5 mm. As a result of tension test, the tensile strength was high when the pulse duration hour was short at the low peak power, while the high tensile strength was achieved when the pulse duration hour was long at the high peak power. The value of tensile strength was higher in the ultrasonic welding while the laser welding showed a maximum 45% better result as for the welding width.

Keywords

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