Journal of Welding and Joining

  • 제24권3호
  • /
  • Pages.22-26
  • /
  • 2006
  • /
  • 2466-2232(pISSN)
  • /
  • 2466-2100(eISSN)
대한용접접합학회 (The Korean Welding and Joining Society)
권호 표지

SPC 용접부의 강도특성에 미치는 $CO_2$ 용접조건의 영향

Effect of $CO_2$ Welding Conditions on Property of Strength in Welded Joint of SPC Steel

  • 송준희 (전북대학교 공학연구원 자동차산학협력원) ;
  • 최준용 (전북대학원 기계설계학과) ;
  • 임재규 (공학연구원 공업기술연구센터)
  • Song Jun-Hee (Research Center of Industrial Technology, Automobile Research Institute, Chonbuk Nat'l Univ.) ;
  • Choi Jun-Yong (Dept. of Mechanical Design, Chonbuk Nat'l Univ.) ;
  • Lim Jae-Kyoo (Research Center of Industrial Technology, Engineering Research Institute)
  • 발행 : 2006.06.01
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초록

It is necessary to investigate the welding performance and fracture resistance of welding part in structure. This study presented a most suitable condition of welding process for butt and lap joints by $CO_2$ arc welding which is widely used in the vehicle structure. Also it was conducted to tensile and fatigue test under various welding conditions. For butt and lap joints, the best conditions of welding voltage and current were 30V and 320A, respectively, in 3.2 and 4.5 mm thick steel plate. Under this condition it could be taken the highest tensile strength and fatigue strength, and a good bead appearance.

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참고문헌

  1. M. T. Shin. J. H. Kim : A Study on the Optimum Welding Conditions of Thick Plate by SEG Arc Welding Process. Journal of KWS. 1-1(1983), 13-20 (in Korean)
  2. J. K. Lim. K. H. Chung. J. H .Kuk : A Study on the Welding Conditions of Weldability of Seam Wlding for Galvanized Steel Sheets of Automotive. Journal of KWS. 19-1 (2001). 27-32 (in Korean)
  3. D. S. UM. S. W. Kang, H. J. Kim: A Study on the Fatigue Crack Growth of Mild Steel Weldments Using Flux Cored Wire $CO_2$ Welding. Journal of KWS. 7-1 (1989). 42-50 (in Korean)