하이브리드(CW Nd:YAG Laser+MIG) 용접을 이용한 A5052-H32 맞대기 용접부의 역학적 특성에 관한 연구
Study on Weldability of A5052-H32 Sheet using Nd:YAG Laser-MIG Hybrid Welding
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Recently, the application of aluminum alloys has been increasing for lightweight and high quality transport vehicles. Therefore, the proposal has been made to apply high speed hybrid welding methods to the marine grade aluminum alloy (A5052) used for shipbuilding by combining a 3-KW CW Nd:YAG laser and the MIG welding process. In this study, the characteristics of the welding parameters were investigated for a hybrid butt joint. This paper also describes the determination of the heat distribution in a weldment and the welding residual stress using a finite element method. Mechanical experimentation was also used to ascertain the reliability of the weldment.
Abstract
Recently, the application of aluminum alloys has been increasing for lightweight and high quality transport vehicles. Therefore, the proposal has been made to apply high speed hybrid welding methods to the marine grade aluminum alloy (A5052) used for shipbuilding by combining a 3-KW CW Nd:YAG laser and the MIG welding process. In this study, the characteristics of the welding parameters were investigated for a hybrid butt joint. This paper also describes the determination of the heat distribution in a weldment and the welding residual stress using a finite element method. Mechanical experimentation was also used to ascertain the reliability of the weldment.
참고문헌 (9)
- 방한서, "유한요소법에 의한 후판용접시의 3차원비정상열전도 해석", 대한용접학회지, 9(2), pp.37~43 (1991)
- 방한서, "후판 용접부의 역학적 특성-유한요소법에 의한3차원 열탄소성 해석", 대한용접학회지, 10(4), pp.250~258 (1992)
- 방한서, "후판 감구조물 용접이음부의 열분포 특성에 관한 연구", 대한용접학회지, 13(1), pp.138~144 (1995)
- 방한서, "유한요소해석을 위한 하이브리드 용접입열모델 선정에 관한 기초적 연구", 대한용접학회 추계학술대회, 통권 : 2, pp.36~38 (2003), 대한용접학회
- 이경돈, "알루미늄 합금의 레이저-아크 하이브리드 용접공정", 대한용접접합학회지, 22(2), pp.23~27 (2004), 대한용접접합학회
- 오종인, "선체구조용 A급 강재의 하이브리드 용접에 대한 열 및 역학적 특성에 관한 연구", 한국해양공학회지, 21(1), pp.64~68 (2007), 한국해양공학회
- Dilthey, U, "Laser Arc Hybrid Welding", the 7th Int. Symp. JWS, pp.397~402 (2001)
- Goldak, J, "A New Finite Element Model for Welding Heat Sources", Metallurgical Transactions B, 15(2), pp.299~305 (1984)
- Kaplan, A.F.H, "Laser Beam Welding of Aluminium Alloys", International Conference Welding Technology, Materials and Materials Testing, Fracture Mechanics and Quality Management, pp.147~156 (1997), Vienna University of Technology