Study on Weldability of A5052-H32 Sheet using Nd : YAG Laser-MIG Hybrid Welding

J. Ocean Eng. Technol. 2010;24(6):92-96.

Kim Jun-Hyung,Bang Han-Sur,Bijoy M.S.,Jeon Geun-Hong,You Jea-Sun,Bang Hee-Seon

Dept. of Naval Architecture & Ocean Engineering Graduate School Chosun University,Dept. of Naval Architecture & Ocean Engineering Chosun University,Dept. of Naval Architecture & Ocean Engineering Graduate School Chosun University,Dept. of Naval Archi

하이브리드(CW Nd : YAG Laser + MIG) 용접을 이용한 A5052-H32 맞대기 용접부의 역학적 특성에 관한 연구

김준형,방한서,비죠이 엠.에스.,전근홍,유재선,방희선

조선대학교 선박해양공학과 대학원,조선대학교 선박해양공학과,조선대학교 선박해양공학과 대학원,조선대학교 선박해양공학과 대학원,삼성광주전자 청소기 개발부,조선대학교 선박해양공학과

Keywords: Hybrid welding, Laser, MIG, A5052-H32, Finite element analysis

핵심용어: 하이브리드 용접, 레이저, 유한요소해석

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.