CRACK RESISTANCE EVALUATION METHOD FOR A WELD ZONE OF A THICK PLATE, PROVIDING A WELDING CONDITION SIMILAR TO THE ACTUAL WELDING CONDITION

摘要

PURPOSE: A crack resistance evaluation method for a weld zone of a thick plate is provided to prevent crack in a weld zone of a thick plate used for ship building by checking welding crack in advance.;CONSTITUTION: A crack resistance evaluation method for a weld zone of a thick plate comprises the steps of: preparing a horizontal member(100) and a vertical member(200) made of thick plates, arranging the vertical member at the top of the horizontal member, implementing retrained welding of one fillet part where the vertical member meets the horizontal member, implementing test welding of the other fillet part to form a test weld zone(300), leaving the work piece at room temperature and inspecting root cracks at multiple positions of work piece according to surface crack of the test weld zone.;COPYRIGHT KIPO 2013