조선용강재의 하이브리드 용접금속부 충격인성에 미치는 용접조건의 영향

Effects of Hybrid Welding Conditions on Impact Toughness of Weld Metal in Ship Structural Steel

In passenger ship building where thin plates are mainly used, conventional arc welding processes result in significant post-weld reworking due to thermal distortion of welded joints. In order to solve this problem, European shipbuilding industries introduced hybrid welding process since the 1990's. for passenger ship, first of all, stability is very important. So, in this study, we investigated effects of hybrid welding conditions on impact toughness of weld metal in passenger ship building using DH36 steel.