Welding is the most common, economical, and efficient way to join metal. It is the process of melting and fusing two different metal parts together by applying heat to form a permanent bond. Once the two workpieces are melted, a filler material is added to form a pool of molten material (weld puddle) that cools to become a strong joint. Because of its strength, welding is used in shipbuilding, automobile manufacturing and repair, aerospace applications, and many other manufacturing activities. Welding also is used to join beams when constructing buildings, bridges, and other structures, and to join pipes in pipelines, power plants, and refineries.

Types of Welding - MIG, TIG, Stick and Robotic

Arc welding is the most common type of welding. Methods such as Mig, Tig, and Braze are the most popular types of arc welding procedures that are used. The basic process of arc welding includes two large metal clips that carry a strong electrical current. One of the clips is attached to a part of the metal piece that is to be welded and the other is connected to a welding rod. When the metal piece is brought into contact with the rod, a powerful electrical circuit is produced. The massive heat that it creates causes the metal piece and the steel ore of the rod to melt together, forming a solid bond with quick cooling.