Laser Solutions (한국레이저가공학회지)

Korean Society of Laser Processing (한국레이저가공학회)
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Study on the welding characteristic of aluminum laser weld using filler wire

용가 와이어를 이용한 알루미늄 레이저 용접부의 용접 특성에 관한 연구

  • Park, Young-Whan (Department of Precision Mechanical Engineering, Hanyang University) ;
  • Park, Hyunsung (Body Manufacturing Engineering Team, Kia Motors) ;
  • Rhee, Sehun (School of Mechanical Engineering, Hanyang University)
  • 박영환 (한양대학교 정밀기계공학과) ;
  • 박현성 (기아자동차 (주) 차체생기팀) ;
  • 이세헌 (한양대학교 기계공학부)
  • Published : 2005.12.01
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Abstract

In automotive industry, light weight vehicle is one of issues because of the air pollution and the protection of environment. Therefore, automotive manufacturers have tried to adopt light materials such as aluminum alloy to production line. Aluminum welding using laser has some advantages high energy density and high productivity. It is very important to understand weld characteristic according to welding condition in order to determine the possibility of application to car body. In this study, Nd:YAG laser welding of 5182 aluminum alloy with filler wire AA5356 was carried out through experimental design according to wire feed rate, laser power and welding speed. Weld bead shape in terms of cross section photo, bead with, height of reinforcement and penetration depth and mechanical property in terms of tensile strength and formability was investigated. Analysis of variation (ANOVA) was performed to know the effect of weld parameter for weldability, laser power was statistically most significance factor of three variables.

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