A welded sculpture is a type of art that involves joining together pieces of metal by most often fusing the metal together. The technique can be used to create both two-dimensional and three-dimensional images. Welded sculptures can be made from a variety of materials, including steel, aluminum, and bronze. The choice of material often depends on the intended use of the sculpture. For example, sculptures that will be placed outdoors are usually made from steel, as it is more resistant to corrosion. Welded sculptures can be produced using either manual or automated processes. Manual welding is typically used for smaller pieces, while automated welding is often used for larger projects. Automated welders generally produce a cleaner and more precise weld than manual welders.