Welding Processes in the Marine Industry

This chapter provides the diversity of welding processes applicable to marine fabrication, offering detailed coverage of their principles, equipment, and operational characteristics. Beginning with the arc welding family, it examines shielded metal arc welding (SMAW), gas metal arc welding (GMAW), flux-cored arc welding (FCAW), gas tungsten arc welding (GTAW), and submerged arc welding (SAW), analyzing their advantages and limitations in shipyards and offshore platforms. The chapter emphasizes how process selection depends on factors such as material type, joint configuration, environmental conditions, productivity, and cost. Subsequent sections explore resistance welding and friction stir welding (FSW) the latter being particularly relevant for aluminum ship structures due to its solid-state nature and minimal distortion. The text also introduces criteria for process selection and comparison, providing case studies from shipbuilding projects to illustrate practical decision-making. A discussion on emerging hybrid and mechanized methods links traditional techniques with modern developments in automation. By offering a comprehensive understanding of process capabilities, quality control, and cost considerations, this chapter equips readers to make informed choices in selecting appropriate welding technologies for diverse marine applications.