VALUE STREAM MAPPING METHODOLOGY FOR PRE-ASSEMBLY STEEL PROCESSES IN SHIPBUILDING

Value stream mapping is used to identify the wastes in industrial processes of many industries such as the automotive and aerospace. In order to remain competitive in the shipbuilding industry it is necessary to continually work on reducing waste in production processes. A clear-cut methodology for shipbuilding is lacking. Since steel makes up the most significant weight composition of commercial ships, shipyard steel processing is analyzed in this paper. A methodology for value stream mapping the current state and a future improved state is presented through a case study of an actual shipyard. The man-hour savings are demonstrated as 33% in the future improved state.