Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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The Comparison of the Thermal and Mechanical Characteristic in Butt Joint for Ship Structure Thick Plate AH32 Steel by SAW & Hybrid(CO2 Laser+MIG)Welding

조선용 후판 AH32 강에 대한 SAW 및 Hybrid(CO2 Laser+MIG) 맞대기 용접부의 열 및 역학적 특성 비교

  • Bang, Han-Sur (Dept. of Naval Architecture & Ocean Engineering, Chosun University) ;
  • Oh, Chong-In (Hanjin Heavy Industries & Construction Co. Ltd., KORDI) ;
  • Bang, Hee-Seon (Dept. of Naval Architecture & Ocean Engineering, Chosun University) ;
  • Ro, Chan-Seung (Chosun College of Science & Technology) ;
  • Lee, Yoon-Ki (Chosun College of Science & Technology) ;
  • Bong, Hyun-Soo (Hanjin Heavy Industries & Construction Co. Ltd., KORDI) ;
  • Lee, Jeong-Soo (Hanjin Heavy Industries & Construction Co. Ltd., KORDI)
  • 방한서 (조선대학교 공과대학 선박해양공학과) ;
  • 오종인 ((주)한진중공업 기술본부 산업기술연구팀) ;
  • 방희선 (조선대학교 공과대학 선박해양공학과) ;
  • 노찬승 (조선이공대학) ;
  • 이윤기 (조선이공대학) ;
  • 봉현수 ((주)한진중공업 기술본부 산업기술연구팀) ;
  • 이정수 ((주)한진중공업 기술본부 산업기술연구팀)
  • Published : 2008.10.31
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Abstract

In this paper concentrate on the comparison of the thermal and mechanical characteristics in Butt joint of ship structure AH32 steel by using hybrid welding and conventional SAW. For this purpose, fundamental welding phenomena of hybrid process using $CO_2$ Laser and MIG is investigated by the experiments and characteristics of thermal and welding residual stress distribution of welded joint in SAW and hybrid welding are understood from the result of FE numerical simulation and experimental values. From the result of this study, it is understood that Laser-MIG hybrid welding have high potential, make substantial saving of time and manufacturing cost and may proves its self robust in the butt joining of thick AH32 steel ship structural plate in the near future.

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  1. Simulation of Thick Plate Preheating Process Using Induction Heating vol.32, pp.12, 2015, https://doi.org/10.7736/KSPE.2015.32.12.1017